Hub Cup with Collar

Thick Barrel H : 10 / 14G

Front : 28/32/36H. 3/8″ X 5 / 5.1 / 2

Rear : 36/40H. 3/8″ X 6.1 / 2

Finish : BCP

Axle : ZP/Black (Lubricated Hole & Clip To Order)

• Made of high quality zinc alloy, fine workmanship, environmental protection, electroplating surface, rust proof, corrosion resistance, long service life, durable
• The screw section is smooth, free of burr, the thread is clear and tidy, and there is no gap, which is conducive to fastening
• Replace bicycle parts
• It can be used for the fast repair of mountain bike, quick removal of axle of rear hub, mountain bike, training vehicle, etc. Best choice for cyclists

• Hub: The central part of a wheel that rotates around the axle and is connected to the rim by spokes.
• Axle: The part of the hub that extends through the center of the hub and allows it to rotate.
• Both sides: This indicates that the axle has grooves on both ends.
• Grooved: This refers to the design of the axle, but without more context, it's unclear what the grooves are for. Grooves could provide a better grip for attaching the hub to the bike frame or could be part of a quick-release mechanism.