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Summary of ABS/CBS Test Track Performance

This summary outlines the purpose, testing conditions, and conclusions of ABS/CBS test track performance conducted by George Soodoo for NHTSA rulemaking. The testing evaluated the improvement in stopping distance performance with ABS and CBS technologies compared to conventional brakes. The results showed that ABS stops were more repeatable and shorter than non-ABS stops when both brakes were applied, while CBS stops were shorter than conventional brakes for single brake control applied. The report will be placed in the docket in the next few weeks.

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Summary of ABS/CBS Test Track Performance

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  1. Summary of ABS/CBS Test Track Performance George Soodoo NHTSA Rulemaking

  2. ABS/CBS Performance Testing • Purpose: To evaluate improvement in stopping distance performance with ABS and CBS technologies compared with conventional brakes • Testing conducted • DRI in Bakersfield, CA in 2008 • Tested motorcycles in different configurations: • Conventional • ABS • CBS • ABS/CBS • Test conditions: Dry asphalt, Wet asphalt, Straight line stops, Hand lever only, Foot pedal only, Both controls together, ABS “on” and ABS “off”

  3. Motorcycles Tested • Motorcycles tested • 2007 Yamaha FJR1300 with ABS/CBS • 2005 Yamaha FJR 1300 with ABS • 2006 Honda VFR800 with ABS/CBS • 2006 Honda VFR800 with CBS • Yamaha: 4 configurations tested • Honda: 4 configurations tested • One expert rider and six non-expert riders

  4. Summary/Conclusions of ABS/CBS Performance Testing • Both the expert rider and non-expert riders in many cases outperformed ABS using single brake lever/pedal in rider best effort stops • However, with both brakes applied, ABS stops were more repeatable and shorter than non-ABS stops • Increased rider workload in applying both brakes at the limit resulted in less repeatability and longer stops without ABS • CBS stops were shorter than conventional brakes for single brake control applied • Agency plans to place Report in Docket in the next few weeks

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