Box Three Chain Tensioners

Box Three Chain Tensioners are lightweight single-hole "lollipop" tensioners for 10mm bolt-on rear axles. They make setting chain tension and locking down the rear wheel simple, with no extra material. Sold as a left and right pair in red, black, polish or blue.

Features

• Single-hole lollipop design keeps weight down
• Holds the rear wheel in the dropouts and keeps chain alignment consistent
• Simple install: the axle runs through both tensioners, and the bolts set chain tension
• Suits racing and freestyle single-speed setups

Specs

• Design: Single-hole lollipop
• Axle: 10mm bolt-on
• Quantity: Pair (left and right)
• Colors: Red, black, polish, blue

Fitment

Fits 10mm bolt-on axles. Not suitable for press-fit or other dropout styles.

Shipping is often faster, but some items like this one can take 1–3 weeks to ship.