Phil Wood Track Hub Lockrings

The Classic version is machined from stainless steel, making it durable and ideal for everyday street riding. The Pro version uses 7075 aluminum, which is significantly lighter and designed specifically for the performance demands of indoor track racing.

These lockrings feature a standard 1.32" x 24 tpi left-hand thread, which is the industry standard for most track hubs. As long as your hub follows this standard, they should be compatible.

Yes, the material choice impacts the weight limit. The stainless steel Classic lockring supports a rider and bike weight up to 280 lbs (127 kg), while the lightweight 7075 aluminum Pro lockring has a lower limit of 190 lbs (86 kg).

Track hubs use left-hand threading for the lockring to prevent it from loosening while you pedal. Because the drivetrain forces act in a specific direction, a standard right-hand thread would naturally unscrew as you ride.

Yes, you will need a standard lockring wrench to properly tighten the lockring against your cog. It is critical to ensure it is fully tightened to prevent the cog from slipping during high-torque efforts.