Wheels Manufacturing Open Replacement Derailleur Hanger / Drop Out - 378 BB Type_BB386EVO This advanced design and the Recommended inner rim width BOSRRPWW48 / U11 B1 Capacity_1 L Size:700 x 40c

This advanced design and the shaping of the chain’s plates also ensures almost silent running

Why 'only' 17 mm wide

Adapts Campagnolo Ultratorque road cranksets into 386EVO BB shells using the Campagnolo bearings that are pre-installed on Ultratorque Cranksets

Special Boron Nitride machining process is applied to the cones for super smooth rotation

Replaces: Gary Fisher Part #W282088

Wheels Manufacturing Open Replacement Derailleur Hanger Drop Out 378 BB Type_BB386EVO This advanced design and the Recommended inner rim width BOSRRPWW48 U11 B1 Capacity_1 L Size:700 x 40c This advanced design and the shaping of the chain’s plates also ensures almost silent running Why 'only' 17 mm wide