MSF Cornering and Turning 5 — Questions and Answers
Question 1: What effect does a headwind or crosswind have on a motorcycle navigating a curve?
- Wind has no effect because tire contact patch is unchanged
- A crosswind can push the motorcycle off the intended line, requiring steering correction (Correct answer)
- Headwinds increase lean angle automatically
- Crosswinds improve stability by pushing against the lean
Correct answer: A crosswind can push the motorcycle off the intended line, requiring steering correction
A crosswind exerts lateral force on the motorcycle's profile, which can push the bike off its intended arc and demands active countersteering to maintain the desired line.
Question 2: When cornering on a motorcycle with a sidecar attached, how does turning behavior change?
- The sidecar eliminates the need for countersteering in all directions
- Turning toward the sidecar is easier; turning away from it requires extra effort and speed management (Correct answer)
- Sidecars make both directions of turning equally easy
- The sidecar always prevents the motorcycle from leaning
Correct answer: Turning toward the sidecar is easier; turning away from it requires extra effort and speed management
Turning toward the sidecar side tends to lift the sidecar wheel, while turning away from it requires overcoming resistance from the outrigger, fundamentally changing handling dynamics.
Question 3: What is 'trail braking' and when might it be used in cornering?
- Using the rear brake only after the apex
- Gradually releasing front brake pressure while simultaneously entering a curve to maintain stability (Correct answer)
- Dragging both brakes through the entire corner
- Applying brakes only after the motorcycle is fully upright post-corner
Correct answer: Gradually releasing front brake pressure while simultaneously entering a curve to maintain stability
Trail braking involves easing off the front brake progressively as lean angle increases, giving the rider additional speed control at corner entry while managing traction carefully.
Question 4: How does a sudden front-tire blowout mid-corner differ from a rear-tire blowout in its handling challenge?
- Front blowouts are easier to manage because the rear still steers
- A front blowout is generally more dangerous as it directly compromises steering control (Correct answer)
- Rear blowouts are always more dangerous in corners
- Both blowouts have identical handling effects in a corner
Correct answer: A front blowout is generally more dangerous as it directly compromises steering control
The front tire steers the motorcycle, so a front blowout mid-corner can immediately collapse steering control and the lean, making recovery extremely difficult.
Question 5: What cornering adjustment should be made when riding through a curve that crosses a painted centerline or lane marking?
- Speed up to minimize time on the slippery surface
- Reduce lean angle or avoid the marking, as paint is significantly more slippery than pavement (Correct answer)
- Lean more aggressively to compensate for reduced grip
- The paint surface provides equal traction to asphalt
Correct answer: Reduce lean angle or avoid the marking, as paint is significantly more slippery than pavement
Painted road markings have much lower friction coefficients than asphalt, especially when wet, so reducing lean angle or avoiding them prevents unexpected slides.
Question 6: In MSF training, what does the phrase 'slow, look, press, roll' refer to?
- The steps for an emergency stop on a straight road
- A four-step cornering process: reduce speed, look through turn, press handlebar, roll on throttle (Correct answer)
- The procedure for a U-turn in a parking lot only
- A fuel-saving technique for highway riding
Correct answer: A four-step cornering process: reduce speed, look through turn, press handlebar, roll on throttle
MSF's 'slow, look, press, roll' is the foundational cornering sequence: manage speed before the turn, aim your eyes through it, countersteer to lean, and smoothly apply throttle.
Question 7: How does riding in a group affect individual cornering decisions?
- Riders should match the leader's exact line regardless of their own skill level
- Each rider must select their own safe speed and line independently of other group members (Correct answer)
- Following closely in a staggered formation is required through all curves
- Group riding eliminates the need for individual hazard assessment
Correct answer: Each rider must select their own safe speed and line independently of other group members
Each rider in a group is responsible for their own safety and must choose a line and speed suited to their skill and the conditions, not merely follow what the rider ahead does.
MSF Cornering and Turning 5
What effect does a headwind or crosswind have on a motorcycle navigating a curve?