Park Tool CC-4.2 Chain Wear Indicator izyrent the P ZERO™ SmarTUBE can

the P ZERO™ SmarTUBE can save up to 70% of weight

Chuck: ABS-1 Pro Chuck | Presta/Schrader

Quick Fold Mechanism (QFM)

providing an all-weather compound

KICKR's 16lb high-inertia flywheel uses progressive algorithms to better replicate the sensation of riding outdoors on an indoor bike trainer

Park Tool CC-4.2 Chain Wear Indicator izyrent the P ZERO™ SmarTUBE canA worn bicycle chain causes poor shifting performance and can actually wear out drivetrain components, causing more expensive problems. The Park Tool CC 4. 2 Chain Checker is a drop in style gauge that measures bicycle chain wear. The laser cut CC 4. 2 accurately measures a long section of chain and strategically comes in contact with the chain in three places, quickly and easily taking the guesswork out of determining when chain replacement is