Shimano SM-BB52 Deore 2-Piece Bottom Bracket Electronic approximately 80% is found in

approximately 80% is found in our bones and teeth

Front Guard prevents front wheel falling off and keep riding even if you lose balance

this results in increased conversion of vitamin D3 to its activated form so as to absorb calcium

For assembling parts made of carbon fiber and aluminum alloy

Adjusts easily to fit small wheel bikes up to 700c wheels

Shimano SM-BB52 Deore 2-Piece Bottom Bracket Electronic approximately 80% is found inThe Shimano Deore Alivio bottom bracket SM BB52 can be found again and again The SM BB52 is a popular Shimano bottom bracket, which is used in countless cranks such as Alivio, Deore and ZEE. Its 24 mm Hollowtech II standard bearings deliver an optimal stiffness to weight ratio and rotational efficiency. The SM BB52 BSA bottom bracket is available in a version for 68 and 73 mm shell width and in a version for 83 mm shell width. Specifications: