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Fork Piston Kits: Which One?
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Fork Piston Kits: Which One? - May 27, 2014, 02:10 PM

I kind of like toying around with motorcycle suspension (I don't know much but I'm trying to learn) and I was looking to get an aftermarket fork piston kit for my street bike (Triumph Sprint). The stock forks are non-adjustable cartridge forks (20mil if I recall correctly) that came stock with some very light and very progressive springs. I've since replaced the stock springs with stiffer straight rate springs, but after playing with different oil weights and levels I still can't get decent compression and rebound dampening without the forks being extremely harsh over bumps.

The obvious choice is RaceTech since they seem to offer instructions for building shim stacks along with the pistons that they sell. Penske, and Ohlins also offer piston kits, but i'm having a hard time finding out what exactly comes with the kits they sell. Anyone have any experience with these different kits?


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May 27, 2014, 02:15 PM

The kits *should* ave recommended shim stacks. Pick up the RaceTech Suspension Bible, then pick a kit and go. The "gold valves" are essentially hogged out valving and custom shim stacks to adjust the oil flow to your particular tastes. Enjoy! And expect to get really oiled up. Suspension is dirty work.


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