Adds or subtracts 1/2 inch (12.7 mm) links for fine-tuning chain tension
Compatible with standard 1/8 inch KMC chains, K1 wide and K1SL wide chains, and Izumi 410 Eco and Miche 1/8 track chains
Available in black and silver finishes for style and visibility
Compact design for easy storage and handling
Summarized by Shop
This extremely handy little dandy will add or subtract 1/2 a link (1/2") from your chain, allowing you to move the axle 1/4" forward or backward to dial in chain tension or slam that rear wheel.
Available in two versions - black works with all standard 1/8" KMC chains (S1/Z410), silver works with K1 Wide and K1SL Wide chains.
The standard
