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Risk Hierarchy: Information - Rider Ed - Driver Ed - Conspicuity - Bike Defect - Ultra-Defensive Riding - Crash Avoidance - Injury Mitigation - Crash Scene
Ultra Defensive Riding (See this without tabs here)
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We broke this out for you. The strategies tab outlines basic strategies and training for ultra defensive riding, and introduces the MSF Scan - Evaluate - Execute cycle. It's important to keep your eyes moving all the time. This works better with our peripheral vision, and if we stop swiveling eyes and head, we'll fixate on a single object.
Ultra-defensive riding will work for you if you have had the appropriate biker education.
Ride safe. Ride safer if you can.
Riding Strategies
This area is directly related to Rider Education and Training. We recommend, at a minimum, that all riders take a Basic Rider Course and any other advanced rider training you like, see the Rider Ed section.
There is no substitute for training.
We suggest some basic strategies.
- The MSF scan - evaluate - execute process (download MSF training manuals). This helps us maintain a mental map of the road situation, including other road users and possible sources of risk.
- Assume that other drivers are out to get you. Motorcyclecruiser.com on street paranoia. This strategy follow's Sun Tsu's advice, to pay attention to your enemy's capabilities rather than assuming his intentions. Some bikers I know, like my buddy Special ED, follow this strategy. Of course, this could be carried too far. We still recommend conspicuity rather than the camouflage that might be suggested by this approach.
- Follow the pilot's strategy of flying from one potential crash landing site to another. This is also a Special ED strategy that I have heard from other bikers. It fits in with the MSF scan - evaluate - execute process, in that one of the things being looked for and evaluated is ways out of the current traffic situation. In effect, the mental map created by SEE now includes potential safer places which are pre-evaluated and ready to roll out in an emergency.
- Use the rules of the road. Clearly indicate your intentions and ride in a courteous and predictable way.
- Group Riding is partly a safety strategy. It has many potential safety benefits. Those cited include creating a more conspicuous presence and maybe getting more respect from other road users. Most groups have safety policies, and riders can help each other with advice and extra eyes looking out for bike defect and road hazards. It must be said that there are also extra risks in group riding, including crashes with other bikes in the group. As always, training is the key to reducing risk. We have a special section on group riding (see tab).
We put some notes on the elements of Scan - Evaluate - Execute process in the tabs above.
- the Scan Plan is an interactive visual road plan with clickable SEE notes.
- The Threat Matrix shows the tactical levels in SEE and prioritizes the tactical levels of ultra defensive riding
- the Scan List is a text version of the scan plan.
- Maneuvers is a series of articles on executing the actions you need to get you and the bike towards your destination.
- Group Riding is a special section on the Group Riding strategy.
- Highway is a special section on restricted-access highway riding and trucks.
There are a huge number of resources you can find on the Web and by talking to old bikers, and we have a selection of these.
Check if you are ready to ride.
Ride safe. Ride safer if you can.
Scan Plan:
click vehicles and objects for the Search - Evaluate - Execute notes. The notes open in a new window, use the Close button to continue.

Threat Matrix:
The idea is we scan down the matrix, but anything from a higher level pre-empts the scan. For example, if we are checking for Active Conspicuity and time comes up for a maneuver, the maneuvers tab comes into play. Similarly, if a crash causation comes up, dealing with that takes priority. Otherwise we are executing the SEE strategy under the various headings.
Tactical Level
Urgency Scan for Evaluate Execute Accident Avoidance All crash causations Go to Crash Avoidance section Maneuvering Maneuvering requirements Safe to make intended maneuver? Execute maneuver as per maneuvers section Active Conspicuity Objects blocking line of sight Can the driver of all vehicles in the area see you? Maneuver to increase your visibility to a driver Space Cushion Vehicles in or near your time/space cushion. Can you maneuver to increase your space cushions? Maneuver to increase your time/space cushion
List of steet situations in the Scan Plan
These all open in a new window, use Close Button to return.
Bike time/space window
Cage approaching in side road
Cage entering roadway from parking lot
Cage stopped in side road
Oncoming cage turning left
Getting ready to ride
Street Furniture and other Conspicuity Obstacles
Special Issues with Trucks
Cage in turn lane ahead of you
Cage in front of you
Cage behind you
Strategy for Maneuvers
Countersteering
These articles are probably all you need for maneuvers. We've included a couple of articles on countersteering. Bikers make a big deal about countersteering, and sagely offer advice and explanations to new bikers. Thing is, you don't need to understand countersteering to ride your bike. On most bikes, over 15 MPH or so, if you are turning, you used countersteering. It is natural and automatic. If you rode a bike when young, you learned it then. Much better to read the Beter Motorcycling posts on Safe Cornering and Making a Turn below. Read the countersteering articles if you are interested in the physics of the situation.
Braking
Braking is important. Promocycle Montreal on Optimal Braking describes the result of experiments they did to find out the most effective way perform an emergency stop. The sequence is:
1) Close the throttle.
2) Apply the rear brake.
3) Straighten the bike to be completely vertical, straighten your body, brace yourself and position fingers and feet - can be started during 1 and 2.
4) Apply the front brake with appropriate pressure, increasingly harder as the brake bites and the front of the bike dips.
5) Declutch.
We would add: as the weight transfers forward, the front wheel applies more of the braking force and the rear wheel has less weight on it. We need to let off the rear brake progressively to avoid locking it up. In other words, the maximum effect of the rear brake is during the first part of the braking process. But this is an important contribution, as it helps to start moving the weight of the bike forward, and Promocycle found that omitting the rear brake seriously reduces braking performance.
The important thing to note is that, if you plan to use this sequence when you have to do an emergency stop, the routine needs to be practiced into muscle memory. It's important to use this same sequence every time you stop, so that when you need it in an emergency you'll deploy it without thinking. The above information is from "Task Analysis for Intensive Braking of a Motorcycle in a Straight Line" by Promocycle Foundation, Canada, and is based on research.
Problems during Braking:
You can lock up the front or rear wheel. If you lock up the rear wheel, the only thing to do is to keep it locked, steer the bike straight, and ride it to a stop. Here's Better Motorcycling on rear skids. Don't let it off. A front wheel lock, on the other hand, according to the WebBikeWorld article cited, needs to be dealt with by letting off the brake until the lock releases. Not dealing with a front wheel lock risks a lowside.
References for Maneuvering.
Better Motorcycling Blog on Overtaking Maneuver
Wikipedia on countersteering
MSgroup.org on countersteering
Better Motorcycling on Safe Cornering Technique
Better Motorcycling on Accelerating on Curves
Better Motorcycling on Making a Turn
BMW MOA Foundation on Tire Grip
BMW MOA Foundation on Adverse Weather
BMW MOA Foundation on Sight Distances
BMW MOA Foundation on Common Riding Errors
Promocycle Montreal on Optimal Braking
Group Riding
Deciding to ride in a group has safety aspects.
The claim given for groups is that a large group of bikes is easier to see, a conspicuity benefit. If the group is well organized, riders also claim that they get more respect on the road.
We've seen situations where a following rider (Turbo Rabbit on the right) pointed out serious bike defects, such as a flat tire, and stopped the group to deal with it. In our experience, hanging out with more experienced riders is a good way to learn useful riding skills and lore.
We caution that there are some extra risks when riding in groups, mainly when bikes in the group crash into each other. Here's an example, where a pack of 26 bikers in Oregon tailgated a cage. The first two bikers managed to avoid the stopped vehicle ahead, but at least ten following bikes hit the stopped vehicle and each other, with ten seriously injured and an unknown additional number of bikes down. They were not allowing enough following distance, one of our peeves, but very common with riding groups. The point here is that a group with poor leadership or containing too many unskilled riders is a very dangerous place to be, so assess the group you plan to join very carefully.
The following sections outlines what to look out for when looking for a group to ride with.
We have had tons of run riding with groups. There is some security in numbers and it is good to have riding buddies to yakk it up with during breaks and at the end of a day's hard riding.
How Groups Work
Here's Msgroup.org on group riding.
Video from MSF on group riding
Each group is headed by a Lead Bike or Road Captain, and tailed by a Drag Bike or Tailgunner. The group should have provided written or web instructions before the ride, study them before turning up. If a new rider is present, the ride leader should give a safety briefing, explaining procedures and demonstrating hand signals.
Most groups use a staggered formation, where the lane is shared by two rows of bikes alternating at usually one-second intervals, the 'State Trooper' formation. Some groups use a side-by-side 'parade' formation. Unless you are very experienced and know your partner, avoid side-by-side formation rides.
When joining a new group, judge it by the clarity of the way the riding instructions are presented. Lead and drag riders should be skilled. There should not be too many novice group riders, and the lead rider should engage them, assess their group riding experience, and provide any coaching or information the new riders need.
Once on the road, the safety and cohesion of the group is maintained by fixed procedures for group maneuvers, and signalling the lead rider's intention using hand signals. You can download a simple guide to standard hand signals here. The hand signals are relayed back, and everyone knows what to do.
As the ride leader will tell you, you are riding your own ride. If, at any time, you are uncomfortable with the way the ride is being conducted, the speed or any sloppiness in the riders near you, you can and should leave the ride.
You also have the ability to initiate a signal yourself. An example of this would be someone needing more room passing a truck. The left-index-finger-up 'single file' signal can be done, and all riders behind you should lose the stagger and go to full 2-second, single file intervals. We at BikeSafer.com are very wary about passing trucks in staggered formation, as the sublane near the truck is a dangerous place. See our highway strategy page for more on that. Feel free to express any reservations to the lead rider prior to a ride and request single-file when passing trucks. It is the only safe way to go.
Except for the overview above, we are leaving our description of group riding at this purposely high level. We are not providing detailed instructions on group riding. This is because each group has slightly different practices, and it might be dangerous to make assumptions. If you want to ride with a group, find the group and study their printed or on-line group riding instructions very carefully before joining a ride. Seek out the ride leader, inform him of your experience in group riding and give him or her a chance to coach you. Your first group ride is not a place and time for machismo.
How to find a riding group
If you are looking for a local group to join, ask your local bike dealers. They might sponsor a local chapter of the manufacturer-affiliated riding group, or refer you to the local chapters of national riding groups. There are groups for special interests and particular styles of riding. They are not hard to find. Check for a clear safety policy before you turn up for a ride, and assess the competence of the ride leaders and other riders. Here's MicaPeak.com's rather complete list of riding groups. A bunch of my riding buddies like Southern Cruisers Riding Club, which has local chapters all over the US and abroad.
Be aware of the difference between a Motorcycle Club(MC) and a Riding Club(RC). MCs wear colors, induct pledges and are sometimes one-percenters. Riding Clubs sometimes wear patches (never colors), don't require a pledge process, are never one-percenters, and often support a charity. Read Wikipedia on MCs. Be careful out there, sometimes knowing a little about colors protocol can save your ass. Be aware of any MC affiliations your riding club might have, and which other MCs might take exception to your patch. And don't run your mouth or engage in any body contact if there are MC guys around, unless you know about MC protocol.
And don't be the rider behind the loud guy with straight pipes, your ears will ring by the end of the day.
Adverse Weather
Hurt and Maids don't consider adverse weather to be a cause of bike crashes, but this error was corrected in the Thailand study.
There is weather that no-one should be riding in - thunderstorms, tornados, tropical storms, icy conditions and high winds. The reluctance of riders to set out in bad weather is well known. We often find ourselves navigating around storms and changing our schedules to avoid rain. In Europe, home of the Maids study, bike and scooter commuters commonly have fall-back plans for bad weather. Public transport ridership increases on rain days, and many riders have fallback carpools. In the USA, where riding is more of a pleasure activity, local rides are often cancelled for weather, and some riding groups have rules to that effect.
We think that the reduced number of riders in the rain masks the effect of bad weather on accident statistics. Unless a study makes a major effort to estimate reductions in ridership during the rain, the studies won't notice an increase in crashes per rider-mile in the rain. In fact, there might be a reduction due to fewer riders. We think that the Southern California location of the Hurt study had a lot to do with this, and the omission was repeated in Maids, but was corrected in Thailand, where the monsoon months bring the subject of rain to the forefront.
The Thailand study had an enhanced population control method, which accounted for rain, and found:
Rain was an infrequent cause factor because most riders did not ride in the rain... However, when it was present, adverse weather often contributed to accident causation. In the 18 cases in which the weather was inclement (i.e., raining) it contributed to accident causation in 12 of those cases, usually by limiting the rider’s ability to see.
-- Motorcycle Accident Causation And Identification Of Countermeasures In Thailand, V.I. Kasantikul, 2001.
We also think that we quickly train ourselves in what's needed for rainy riding. If we ride as usual, we'll soon go down. We might survive one or two put-downs in the rain, as the lowered friction and bulky rain gear might allow us to skid to a halt without road rash. We don't recommend experimenting with this. It won't take long for nature to teach us a hard lesson in rain riding.
Wet Surfaces
Wet sufaces mean reduced friction between tires and road. You can't lean as far into a turn, so you have to take them slower. Braking and acceleration has to be more gentle. We need to practice even more defensive riding than usual, because we need more time and distance to speed up and slow down.
Visibility
Our ability to see is compromised when visors, goggles and windshields fog up and become coated with rain. Manufacturers often say not to use an anti-fog product on polycarbonate and other transparent plastic equipment. In fact, you should not use a product designed for glass on these plastics. The good news is that there are a variety of sprays and wipes on the market which do not harm plastics. I use stuff my optican gives out free, designed for plastic and polcarbonate eyeglasses. These products combat misting and cause raindrops to coalesce, where their greater weight makes them fall off faster. Other folks recommend the diver's remedy, to wipe spit on the plastic. This works, but I never seem to have enough spit for my windshield.
The owners forum for your bike or equipment may have more on what works on your gear, and some equipment manufacturers recommend or supply specific products for their gear.
The Thailand study identified issues with rider visibility, rather than friction issues, as the major cause of rain accidents, but these factors are related. Reduced friction requires more reaction time, and reduced visibility reduces reaction time.
Conspicuity
You and your bike are even harder to see in the rain. If you have modified your bike lighting for conspicuity and are wearing bright gear, that's a start, but the actve conspicuity measures in this section become more important too, and you might consider using hazard flashers in extreme conditions. If you can't be seen, maybe it's time to pull over and wait it out.
Rain Gear
Getting wet is a comfort factor, and when it's cold also a safety factor, due to exposure. Our injury mitigation section has information on riding gear. If their gear is not rainproof, most bikers carry rain gear. This is an individual matter as bikes vary in offering rain protection via windshields and fairings. Consider getting highy conspicuous gear as you need the extra brightness in the rain.
Wind
High winds and gusting cross-winds deserve mention. Unless we are in extreme winds, where we should not be riding, wind generally is not a threat. Winds tend to throw us off course and we might wander in the lane, but most riders soon learn to counter wind gusts and crosswinds. Many new riders think wind is very scary. There are risks involved, especially in highway driving around trucks, and when riding in a group. When these factors are combined, the problem is worse.
Here's a good article on winds from the UK Survival Skills site.
Wind is different for everyone. Lighter bikes and ones with fairings and windshields are affected more by wind, and the effects increase with speed. Novice riders generally have fewer of the skills needed to ride a straight line in wind.
Trucks are large windblocks. When passing a truck, you can get sudden blasts of wind through the gap between tractor and trailer,and at both ends of the truck, and these effects can be worsened by slipstream from the truck itself. This gets worse when topping hills and on bridges, and prarieland seems to always have high winds.
We recommend assuming that your bike will wander in high winds and when passing trucks. The best bet is to use the center of your lane. In the case of group riding, this is even more of a problem, as wandering into another bike is an additional danger. If the ride leader does not put the group in single file, any rider is allowed by the protocol to issue the 'single file' hand signal whenever he or she is concerned by wind and/or truck passing issues. It is part of 'riding your own ride'. Your ride leader, if he is paying attention, will probably do something like passing fewer trucks or issuing the 'single file' command himself when he sees riders asking for 'single file'.
If the wind is not bad enough to put your bike down, management of the bike space window to allow for bike wander is essential. In time, riders learn to automatically correct for wind wander, and the wind gets less scary.
A combination of wind and rain makes everything worse, and it is often necessary to slow down as wind corrections consume a percentage of the already reduced tire traction.
If you are on the highway and unable to maintain highway speeds because of wind and/or rain, consider getting off the road until conditions improve. Low visibility is a frequent cause of freeway crashes, and bikes, because of the conspicuity issues we taked about, are even more vulnerable to rear-end collisions in foul weather. We consider riding slower than the average slow-lane speed on restricted-access highways to be extremely dangerous for this reason.
Strategy for Restricted Access Highways
Riding on restricted access highways is in some ways simpler than city streets and highways. Except for the very occasional vehicle that crosses the median, most traffic is heading in the same direction and there are no cross-streets.
Trucks
There are a lot of over-the-road trucks. I had a recent opportunity to observe truck behavior over a few thousand miles, and I talked to Bubba Strawn, experienced biker, SCRC West Tennessee Second Officer and truck driver for this section. See our Truck Issues page for background on truck blind spots, and motorcyclecruiser.com's article.
It's important to understand truck drivers. They are making a tough living driving these huge vehicles, which have diesel engines and maybe 18 gears. They have a narrow power band, and diesels are most efficient when run at a constant speed. Truck drivers want to sit in the slow lane and cruise all day. It is a real pain in the neck to have to slow down, and get back up to cruising speed.
Truck drivers will move into the overtaking lane if they have to overtake something slow, if they see activity such as a stalled vehicle or flashing lights on the right shoulder or if a vehicle is coming up an on-ramp ahead of them.
There is a big blind spot behind a truck, extending at least 25 feet, and a trucker can see objects in his left mirror better than the right. There is often a large blind spot to the right of a truck and a smaller one to the left, depending on how the trucker has set up his mirrors. Small objects like a bike on front of a truck might be hard to see also. If following a truck, don't tailgate and stay to the left sublane of your lane so the driver can see you easier. Watch for 'alligators' and other road debris thown up by thr truck tires.
Overtaking Trucks
If you come up on a truck, and intend to overtake, approach in the passing lane. Give the trucker time to see you in his left mirror. You should be able to see the trucker's face. Wait four of five seconds to allow the trucker to go through a complete scan cycle, or until you make eye contact in the mirror.
When waiting for the trucker to see you, take a look at what the trucker is seeing. Look for flashing lights on the shoulder or stopped vehicles, upcoming exits and on-ramps and slow vehicles ahead. Anticipate any possible lane change from the trucker. It is courteous to flash the trucker on if he uses his turn signal. If you have a modulator, the trucker might assume that you have, in fact, flashed him on, as a short view of a modulated headlight looks like it is flashing. As you are probably on the road having fun and the trucker is working, be kind and let him make his move if he wants to.
Alligators
Wait until any vehicles in front of you has finished passing the truck before you make your move. Once you decide it is safe to pass, accelerate and complete the maneuver as quickly as possible. Pass either in the center of your lane, if it is windy, or as far from the truck as possible otherwise. Don't linger passing a truck, as truck tires blowing out are often fatal to bikers. An 'alligator' from a busted truck tire has a lot of kinetic energy and sharp steel bands embedded in it. Think in terms of someone throwing a chainsaw at you. They say that the warning sigh of a truck tire about to blow is a rhythmic 'whump' noise, but I don't know of any biker who has heard this and lived, so this might not be accurate. Any unusual noise from a truck tire is a signal to get away fast, into your ready crash landing site. As you have waited for any previous vehicles to complete passing the truck, the way ahead should be clear, and if there is a lot of space behind, emergency braking might be a quicker escape.
Another reason to stay away from a truck is that there is often a vacuum behind and under a truck, which could suck your bike under the truck.
On completing your overtaking maneuver, wait until you are a safe distance in front of the truck, signal a lane change and move into the slow lane.
Truckers Driving Oddly
Trucker behaviour is usually regular and predictable. Be very afraid of truck drivers driving differently from normal. Assume that something bad is happening. Maybe he fell asleep or is having a health emergency. Give him plenty of space.
Cages
Sometimes, you will come across some bozo who has his cruise control on and is overtaking a truck doing a half mile an hour faster than the truck. This is a potentially dangerous situation. If you join a queue of vehicles waiting to pass the truck, you might be obstructed from the truck driver's view. You might collect a bunch of impatient, tail-gating cages behind you. Don't follow a car which is passing a truck or slower vehicle until it has completed passing the slower vehicle.
We think it's better to pull into the slow lane, well behind the truck and in the left sublane of the slow lane, where most of the cage drivers and the trucker can see you. Wait it out there until the cage drivers finish passing the truck, then change to the passing lane and maneuver as described. In this situation, making a few extra lane changes can make you more visible to the other road users. Never pass a truck on the inside, that's a dangerous place to be because of restricted trucker visibility on the right.
Overtaking cages, RVs and other vehicles is a different. With trucks, we can assume the drivers are well-trained and courteous, they will use their turn signals and generally be predictable. Cage drivers are unpredictable, can aggressively come up behind you and jam on, pass on the inside when you are waiting to overtake and generally act like doofuses. Watch for unexpected hood dip and wheel turn when around cars as usual for ultra-defensive riding.
Speed Issues
The routine ultra-defensive riding strategies apply on the freeways, and we need to assume that we are invisible at all times. The SEE strategy, conspicuity, maintaining a large space window, and having escape routes ready apply on the motorways as much as on regular streets.
It's not speed that kills on the highway, it is differences in speed. Traveling significantly faster than the average passing speed in the passing lane is dangerous. Equally dangerous is riding slower than the average speed in the slow lane. I have often seen small traveling traffic jams, where a slow-moving bike in the slow lane has accumulated a large group of tailgating cages, and there is a dumb driver with his cruise control still activated edging past in the passing lane. The glut of honking, impatient tailgaters is an accident waiting to happen. Having traffic come up behind you fast and have to jam on when they see you late is a very dangerous situation. (In fact, you can now get a ticket for coming up fast and jamming on, it is considered road rage). Going slow in the fast lane is even worse, as drivers usually assume that vehicles in the fast lane are at least doing the speed limit, and we have discussed how bike speeds are hard to estimate. If your bike can't keep up with highway traffic, consider taking another route. And when you get in the passing lane, speed up and complete your passing maneuver briskly. Rear-end crashes with bikes are relatively rare, but often fatal, and the biker is often helpless in those situations. Because the classic 'cage turning across' accident pretty much can't happen on an interstate, rear-enders are much more common on these highways.
A final point. If they are executing SEE and incorporating mirror views, most biker's scan cycle time is four or five seconds, when they are paying attention. It is quite possible for a very fast-moving vehicle to come from far behind to right behind you inside five seconds, so do extra mirror checks when you are in the passing lane. This is more likely to happen on the autobahns and autostradas of Europe than the interstates, but all it takes is some rich kid in a sports car, or a cop doing cop stuff to mess up your day. There are plenty of cages out there which can do 120 MPH, meaning that they can get from more than a quarter of a mile behind to right on your tail in one scan cycle.
