“
Phil Wood Fixed Lockring.
Lockring with left-hand thread to counter a rigid pinion
Made of stainless steel, made in USA
Fits Phil Wood and Campa Track Hubs
The lockring is on the inside the diameter is smaller, it also allows the driving of small 12T pinions, others Lockringen the chain would lie here
thread: 33.5mm x 24 TPI LH (left hand thread)
“
“Weight : 24 g“