Profile 22mm BB92 BMX Bottom Bracket Set - Black - USA Made 28.6mm (1-1/8") The MCS 4-bolt chainring is

The MCS 4-bolt chainring is an all-American CNC-machined product made of 6061 aluminum

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With a V-shaped tread pattern custom designed for precise grip and high speed acceleration

The 16" Weinmann 519 rim is a silver anodized aluminum single wall that has 36 holes

1 (ISO 622mm)

Profile 22mm BB92 BMX Bottom Bracket Set - Black - USA Made 28.6mm (1-1/8") The MCS 4-bolt chainring isThe Profile Racing 22mm BB92 Bottom Bracket (spacers and bearings) works with 22mm spindles and fits BB92 frames. The spacers have a black anodized finish. The kit comes with two (2) cups, two (2) 22mm Spanish bearings, one (1) Spanish Cone, one (1) 22mm by 73mm Tube spacer, and four (4) varying flat washers. This bottom bracket may vary slightly in appearance from the photo.