Park Tool CC-4.2 Chain Checker Tool CheckoutTitle=SRAM GX T-Type Pedal Assist Build Kit }Hayes Dominion A2 SFL Disc

}Hayes Dominion A2 SFL Disc Brake and Lever - Rear Hydraulic Post Mount Black/Bronze

Over Locknut (mm) 110 Axle Diameter (mm) 15 Overall Length (mm) 155 Thread Length (mm) 15 Thread Pitch 1

Spring Weight 400-488 Material Steel Stroke (ins) 2

Smaller version features a

Refined composite formula resists breakage and bending

Park Tool CC-4.2 Chain Checker Tool CheckoutTitle=SRAM GX T-Type Pedal Assist Build Kit }Hayes Dominion A2 SFL DiscPark Tool CC 4. 2 Chain Checker Tool. A worn bicycle chain can cause poor shifting and expensive drivetrain damage. The Park Tool CC 4. 2 Chain Checker is a drop in gauge that measures chain wear accurately. It contacts the chain in three places eliminating guesswork. Compatible with 5 to 13 speed and single speed chains it indicates wear at 0. 5% 0. 75% and 1. 0% matching manufacturer replacement recommendations. Measures bicycle chain wear