Quote:
Originally Posted by Ram Jet
Remember the front brake applies at least 70% of your stopping power - don't be afraid of it. Learn to use it
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Quote:
Originally Posted by Triple Jim
At least is right. Both my H2 and my Ninja 250 will lift the rear wheel in the fastest possible stop, which means the front brake is doing 100% of the stopping.
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Yup... braking-force on each wheel depends upon deceleration-rate. Both-brakes when initially braking and in corners will give you roughly 50/50% F/R based upon weight-distribution. But... deceleration force pushing back on front-axle causes a weight-shift to front-wheel. The faster you brake and decelerate, the more and more weight transfers to front wheel.
At
maximum deceleration... say 1.0g, you will have ALL weight transferred to front wheel and it's doing 100% of braking. So the practice here is grab both brakes and increase force gradually. Then back off rear-brake as deceleration increases. As you near maximum on front-brake, rear should be bled off to nothing. Some say to let off front-brake to put back wheel on ground to increase braking-power. But that's a fallacy because you're backing off from 1.0g of deceleration to 0.90g and that back-brake dragging is not really contributing to any deceleration anyway. Compare absolute braking-distances of various technique shows maximum front-braking yields shortest distances.
However, on bikes with long wheelbases, more rear-ward weight-distribution, lower centre-of-gravity, they won't transfer as much weight to front, so you can actually lock up front-tyre before reaching maximum-deceleration. So yeah, it may very well be 70/30% for maximum-deceleration. Would need some instrumented testing to arrive at exact numbers.