Shimano SM BB52 Deore Alivio Hollowtech II Bottom Bracket,Hollowtech II Bottom Bracket Shimano SM BB52 Deore Alivio, - high power transfer efficiency,Technology:Hollowtech II, Bottom Bracket Cup Material: aluminium, Bottom Bracket Shell Material: resin.Bracket Shimano SM BB52 Deore Alivio Hollowtech II Bottom.

Shimano SM BB52 Deore Alivio Hollowtech II Bottom Bracket

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Shimano SM BB52 Deore Alivio Hollowtech II Bottom Bracket
- high power transfer efficiency,Technology:Hollowtech II, Bottom Bracket Cup Material: aluminium, Bottom Bracket Shell Material: resin.