Anaheim, CA – The CHUMBA F5 now uses a cartridge bearing system on its swinglink to increase durability, rigidity, and smoother suspension action. The prior system relied on bushings – but with the implementation of this new system, it will eliminate any play – and offer a wider diameter axle to support suspension forces. Current F4 and F5 owners need not worry – the new piece can be purchased for $125.00 and fitted retroactively. Please call 800-706-0760 (domestic) or 714-986-9100 to order.
source: Alan Kang, CHUMBA Bicycles