Park Tool Chainrng Lockring Tool Option:LRT-4 We took the modern wolf

We took the modern wolf in sheep’s clothing and gave it a brand-new bag of high-power

With quicker brake engagement and shorter free stroke

20mm Boost and Torq

Specially treated DARTs don’t just plug large slices and punctures in your tires

Precision sizing and a military grade industrial phosphate finish ensure an accurate fit and consistent quality

Park Tool Chainrng Lockring Tool Option:LRT-4 We took the modern wolfPrecisely machined for a perfect fit, the LRT 4 removes and installs lockrings found on many Shimano direct mount chainring systems. Features a 36 mm hex fitting for use with the Park Tool TWB 36 Crow Foot and a torque wrench (each available separately) to achieve proper torque. Precisely CNC machined from 6061 aluminum for a perfect fit and to prevent marring expensive parts, with a machined flat face for optimal lockring engagement.