Park Tool HCW-4 Box End and Pin Spanner Crank Wrench (36mm)

Shimano UN55 Tapered Spindle Bicycle Bottom Bracket (68 x 107)

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UN55 68X107MM

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Product Review

UN55 68X107MM

Durability is improved by 25% compared to UN54 model
Alloy non-drive side cup
Maintenance free sealed cartridge bearings

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Park Tool HCW-4 Box End and Pin Spanner Crank Wrench (36mm)