Studio : Wheels Manufacturing Publisher : Wheels Manufacturing Product Description Wheels Manufacturing Non Threaded Bottom Brackets · CNC-machined aluminum shell for precise bearing alignment and frame fit · Replaceable Enduro bearings · Made in the USA · 2 year warranty · Grade 3 silicon nitride balls ground to .00003 for unmatched smoothness and efficiency · R-64 hardened, magnetite coated, polished, cryogenically treated 52100 alloy bearing races for long-term performance · Silicone VV-type 2-lip non-contact labyrinth seals for excellent bearing protection with minimum friction · Long-lasting Rheolube synthetic grease helps prevent contamination · Nylon/graphite retainer to further minimize friction-- Specifications -- BB Shell Width (mm): 86 mm , 92 mm , 89.5 mm BB/Frame Interface: BB86 , BB92 Bottom Bracket Shell I.D.: 41 Defined Color: Red Spindle Interface Type: Shimano Hollowtech II , FSA MegaExo , RaceFace EXI 0
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