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AntiLock Brakes

AntiLock Brakes. Antilock Vs Standard/Linked. Types of Braking Systems. Independent Braking System – Hand and foot controls work independently Linked Braking System – Uses two controls but the handlebar control activates the rear brake.

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AntiLock Brakes

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  1. AntiLock Brakes Antilock Vs Standard/Linked

  2. Types of Braking Systems • Independent Braking System – Hand and foot controls work independently • Linked Braking System – Uses two controls but the handlebar control activates the rear brake. • Linked Braking System – with only one brake control for both brakes. • *** No current research indicates which if any of these is more effective***

  3. Further Identification • Linked braking – slows both wheels with one control • ABS braking – allows the rider to apply maximum braking force without fear of wheel lock-up and the resulting loss of control (Providing the bike is NOT leaned over)

  4. Problem Areas • Average riders – Overbrake the rear, causing skids, squeels, slides. They also underbrake the front, increasing the stopping distance exponentially. • Skilled/Practiced riders – learn through practice and training to apply the proper amounts to each brake, vastly reducing the distance to a safe stopping distance.

  5. Normal Stopping Distances • Speed Braking Distance • 90 MPH 300 feet • 80 MPH 238 feet • 70 MPH 182 feet • 60 MPH 134 feet • 50 MPH 93 feet • 40 MPH 59 feet • 30 MPH 33 feet • 20 MPH 15 feet • 10 MPH 4 feet • ** Does not factor Perception/Reaction Time

  6. ABS Stopping Distances • Speed Braking Distance ABS Braking Distance • 90 MPH 300 feet 189 feet • 80 MPH 238 feet 149 feet • 70 MPH 182 feet 115 feet • 60 MP 134 feet 85 feet • 50 MH 93 feet 59 feet • 40 PH 59 feet 38 feet • 30MPH 33 feet 21 feet • 20 MPH 15 feet 9 feet • 10 MPH 4 feet 2.5 feet • *** Stopping distances improve on Dry and Wet surfaces***

  7. Reaction time • A fully alert rider takes 0.75 of a second to think. • This equates to 49 feet 2 9/16 inches in traveling distance before even applying brakes at 50 MPH! • The shortest stopping time ever recorded in testing is 2.75 seconds at 62MPH for a distance of 121 ft 2 47/64 inches.

  8. To Clutch or Not to Clutch • To aid in stopping further, tests went so far as to see if disengaging the clutch aids in stopping. • With the clutch disengaged the mean stopping distance was 131 ft. • Leaving the clutch engaged the mean stopping distance was 136 ft. • The only advantage listed was a reduction in the rear tire locking in emergency braking with the clutch engaged.

  9. Goals • Generate an interest in practicing proper braking skills through additional training and personal practice. • To have all HOG members possessing the skills to use their brakes fully while maintaining control under ALL riding conditions, thereby avoiding some crashes. • Thankfully we have skilled trainers who could and I am sure would aid in this training!

  10. Summary • ABS brakes reduce stopping distance by 37% • Leaving the clutch engaged through the main braking period (IF you are that good a rider) should reduce the possibility of the rear wheel locking. • ABS helps in preventing a high-side when fully applied in an emergency situation if the rider maintains control of the motorcycle. • Insurance claims for riders with ABS reduced 22%

  11. Training Aids

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