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*INCLUDES FREE STICKERS

Stacked official word:
ThisTheory bikes American Bottom bracket to mid Bearing kit is made for any frame that has an American bottom bracket and installing cranks with a 19mm, 22mm or 24mm spindle. This kit pops inany American Bottom bracket shell and allows you to run a 19mm, 22mm, or 24mm sealed bearings. Most American BB frames have unsealed bearings and 1 piece cranks. So for anyone who is upgrading from the 1 to 3 piece cranks, this is the perfect starting point. Justselectbearings that match your spindle size and you’ll be all set. Pick up a set today to complete your crank system and get rolling.

Theoryword:
TBA

Specs:

Outer size: American

Inner Size: Mid

Material: Aluminum

Shipping:
Ships next business day, not including the day your order is placed. Excludes weekends and holidays

We accept all major credit cards & Paypal.

***Every Online order comes with a bunch of stickers and FREE stuff from your favorite brands. The more you order the more we throw in. Stacked Always giving back.