Wilbers Powered by ZF Fork Type 46R with Closed CartridgeZF by Wilbers 46R open cartridge road fork. Fully adjustable with 10 clicks each of rebound and compression and 10 mm of spring preload range. Low friction internals yield ultra sensitive response, so the fork tracks even tiny inputs while providing a wide tuning window for comfort and stability. As with our shocks, each fork is set to your individual requirements. Supplied with ABE and a 2 year warranty.