Create idea 1set of Bicycle Bottom Bracket Cup Set Carnk 5/16x9 24TPI BMX Cruiser Bike Set Compatible with BMX Compatible with Cruiser Bike Bike Black

This bottom bracket kit is compatible with most BMX or most Cruiser bikes, and is also suitable for mountain bikes, racing bikes, children's bikes, etc. Ball Retainer: 5/16 x 9, Interface: 24 tpi, Bowl OD: 56mm, Inner OD 39mm, Ball Bearing OD: 45mm, Inner OD 31mm. Set includes: two side bottom bracket cups + a pair of 24tpi 1.37 threaded ball bearings + fixed cup (inner OD 22.5mm) + hexagonal spacer (inner OD 21mm) + round spacer (inner OD 25mm) + lock ring (3-prong type) + 1/4 x 9 pre-lubricated bearing race. The bottom bracket kit is made of steel material, which has good corrosion resistance and is suitable for long-term use. The bottom bracket kit has a simple design and supports quick installation and replacement.