hab ich grad gefunden
Quelle: http://%22http//www.elsberg-tuning.dk%22
3: Suspension - a compromise.
The biggest enemy when building up speed in the 50cc class is wind resistance. The larger the frontal area, the more drag, and going for the lowest possible frontal area, makes no room for suspension travel! As you got to have some sort of suspension, so you wont get thrown off, you must realize that limiting suspension- travel, equals a higher top speed. Usually you end up with a front fork with less than 50mm of travel, and even less in the rear.
Springrates should be increased to prevent suspension from bottoming out, and this is normally done by shortening spring the same amount as fork- tubes. When shortening a standard hydraulic fork, sometimes a change in the bounce/ rebound action is called for, but this is a job better left for the pros!
Lower legs of the front forks, normally cast aluminum, can be reduced in length in the seal area, by machining seat in a lathe. Sometimes the seal can be refitted as much as 30mm lower, and by that you can lower the bike same amount. A narrower triple- clamp that brings the fork tubes closer together, again leaving you with a lower frontal area.
http://%22http//www.elsberg-tuning.dk/images/fork1.jpg%22
Shortening a front fork starts with draining oil, removing top cap and spring, and measuring travel, before complete disassembly.
http://%22http//www.elsberg-tuning.dk/images/fork2.jpg%22
Inside fork legs are two seals held by a circlip.
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Use a lathe with center support to lower seals in fork leg.
http://%22http//www.elsberg-tuning.dk/images/fork3.jpg%22
Travel length can be reduced-
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by shortening damper- rod.
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Shortened fork tubes gets an inside groove, then a circlip will replace threaded- cap.