This BikeHand ChainChecker Tool is designed and intended for use specifically measuring the state of your chain in relation to the extent of wear it is showing. Now includes some handy multitool functions. Shows When To Replace Your Chain This user-friendly instrument clearly indicates when the warning indicators are reached. When the 0.75 (75%) wear is reached the chain must be replaced soon. When the 1.0 (100%) wear is indicated the chain must be replaced immediately.

BikeHand bike maintenance tool Chain checking tool Measures the wear on your chain Easy to use Replace soon indicator at 0.75 (75%) wear

Replace instantly indicator at 1.0 (100%) wear Integrated chain hook holds links during assembly. Added valve tool and 5/6/8mm hex wrench makes this a unique multi-tool * Made in Taiwan * Lilfe Time Warranty