Wolf Tooth Components Centerlock Rotor Lockring - Internal Spline Lock It Down This Centerlock Rotor Lockring is a high-quality, premium upgrade for any centerlock hub with internal splines. The lockring is made in the USA at the Wolf Tooth Components factory in Minnesota and is crafted from 7075-T6 aluminum, balancing weight savings with durability. This internal spline version of the lockring is compatible with 12mm thru-axles and QR hubs and offers more clearance for forks and frames that run a bit tight on space. Installed easily with a Shimano-style cassette lockring tool, and available in multiple colors to complement your ride, this Centerlock Rotor Lockring is a worthy upgrade for any bike. Features Internal spline version accommodates QR and 12mm thru axle hubs, with a slim design for increased clearance Crafted from 7075-T6 aluminum for reduced weight and high strength Made in the USA at the Wolf Tooth Components factory in Minnesota Specifications Weight10. 5 grams Material7075-T6 Aluminum (with stainless steel shim washer)Installation Torque40 Nm | Wolf Tooth Components | Mk0 Centerlock Rotor Lockring Internal Spline Shadow Gray