More interesting to me was the difference in stopping distances with standard brakes when comparing using front & rear brakes versus rear alone. In general, over 2x the distance is needed when using just the rear brake at 30-mph and over 3x the distance at 60-mph, irrespective of road surface conditions or whether it was wet or dry. In fact, these data underscore another truism: good brakes & good tires allow you to stop in the wet almost as quickly as when it is dry.
Thinking about the number of riders I see using only the rear brake is scary. Those I've asked about it tell me they worry about flipping over the handlebars if they use the front brake. I'd be more worried about flipping over the car you might run into if you don't use the front brake.
|Speed||Surface||Front & Rear||Rear alone|
|30 mph||dry bumpy||38 ft||89 ft|
|60 mph||dry bumpy||146 ft||353 ft|
|30 mph||dry smooth||32 ft||73 ft|
|60 mph||dry smooth||140 ft||304 ft|
|30 mph||wet smooth||37 ft||82 ft|
|60 mph||wet smooth||155 ft||335 ft|