Detail
Surly Stainless Steel Lockring CNC-machined from premium stainless steel...no flaking chrome or rusting. Weve improved the design to increase thread contact. Its now a full 5mm thick, plus a lip (.65mm extra) to maximize thread contact on all compatible hubs. Fits English lockring threads (1.29x24tpi) to work on almost all track hubs available today except Campagnolo (1.32x24t LH) and French (33x1mm LH).