ADJUSTMENT VALVES KIT XXF shock absorbers can be easily and quickly modified thanks to the replacement of the XD compression valve and XS rebound valve. The supplied set-up is labelled on the shock body. Bitubo Racing department has created specific set-ups for several bikes developed with the world champion teams and their riders, now available to you, the enthusiast, with specific damping coefficients. Bitubo supplies complete valve kits in single or double speed, provided with the relative graphs. XXF can be fully re-built.
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