Nedanstående text är saxad från http://www.mototuneusa.com/sweden.htm#17
Jan Greven was real fast on the track, taking an impressive 3rd in the Superbike Race. He was also kind enough to let me take some photos of his very trick 163 horsepower Kawasaki Superbike.
The bike is loaded with externally visible speed tricks, but the most interesting thing was a feature that Jan added, which links the rear brake to the front. It was invented by a man from Switzerland.
Unlike the simple linked braking systems used on some streetbikes, this one features 2 rear brake calipers, one above the disc and a much smaller one below it. The main purpose is to transfer force through a system of levers to provide an ingenious advantage ...
The Advantage:
The upper caliper functions as a normal rear brake, that is to stop the wheel. But, the lower caliper isn't actually used for stopping force, (although it does do that too.) Instead, a system of linkage "torque" arms transfers the braking torque from the lower caliper to the swingarm and frame.
When the lower caliper grips the disc it naturally "wants" to rotate towards the rear of the bike. This torque force is transferred via the linkage rods, so it actually "pulls" down on the swingarm. This makes it harder for the rear tire to lift off the ground under hard braking ("stoppies" are cool to watch, but you don't want them while racing !) The result is increased braking stability as well as allowing much harder braking ! Since the rear brake is linked to the front, it works automatically. Wow !!!
Mycket häftigt må jag säga, någon som använder samma lösning här?
Jan Greven was real fast on the track, taking an impressive 3rd in the Superbike Race. He was also kind enough to let me take some photos of his very trick 163 horsepower Kawasaki Superbike.
The bike is loaded with externally visible speed tricks, but the most interesting thing was a feature that Jan added, which links the rear brake to the front. It was invented by a man from Switzerland.
Unlike the simple linked braking systems used on some streetbikes, this one features 2 rear brake calipers, one above the disc and a much smaller one below it. The main purpose is to transfer force through a system of levers to provide an ingenious advantage ...
The Advantage:
The upper caliper functions as a normal rear brake, that is to stop the wheel. But, the lower caliper isn't actually used for stopping force, (although it does do that too.) Instead, a system of linkage "torque" arms transfers the braking torque from the lower caliper to the swingarm and frame.
When the lower caliper grips the disc it naturally "wants" to rotate towards the rear of the bike. This torque force is transferred via the linkage rods, so it actually "pulls" down on the swingarm. This makes it harder for the rear tire to lift off the ground under hard braking ("stoppies" are cool to watch, but you don't want them while racing !) The result is increased braking stability as well as allowing much harder braking ! Since the rear brake is linked to the front, it works automatically. Wow !!!
Mycket häftigt må jag säga, någon som använder samma lösning här?