SPECIAL BEARING WITH 37.1MM "OVERSIZED" OUTSIDE DIAMETER. USED ON TREK BIKES WITH OVERSIZED NET MOLDED BEARING SOCKETS
BB90 (Oversize) to 24mm (Shimano) Crank
Designed for Trek BB90 (Oversize) bracket shells when using a 24mm (Shimano) crankset.
ABEC-3 press-fit bottom brackets offer a great solution on a budget. The high quality POM thermoplastic housing paired with our ABEC-3 sealed cartridge bearings are offered in 7 of the most common sizes for press-fit bottom bracket shells and crankset combinations.
Our ABEC 3 Bearings are built to perform and provide a durable option for our Press-fit ABEC 3 bottom brackets. ABEC 3 Bearings use Grade 10 Chromium steel balls. These High precision balls are within 10/1,000,000" round, twice as round as the industry standard, at it’s highest level. The bearing races are made from 52100 High Carbon Chromium Alloy Races. Our races are vacuum de-gassed process for the purest chromium alloy steel, hardened to R-62, extremely tough and very durable. Polished to a mirror finish for ABEC-3 precision and noiseless movementBB86 to SRAM GXP