The Shimano BB-ES300 Octalink bottom bracket with 8-speed gears fits MTB and touring cranks installed in BSA bottom brackets with 68 or 73 mm shell width. Compared to its predecessor the BB-ES25, it can save up to 25 grams of weight. This is the standard version, which is not compatible with E-Type or chain cases.
Specifications:
– Application: All Mountain, Touring, City
– Type: BSA
– Shell Width: 68 mm, 73 mm
– Axle Length: 113 mm, 118 mm, 121 mm, 126 mm
– Axle Type: Octalink (MTB)
– E-Type Compatibility: no
– Chaincase Compatibility: no







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