Designed and machined in-house, this is our eccentric for BB30 bearings and cranksets. Fits all Co-Motion tandems with 66mm wide / 60mm diameter frame shells like 2013 and newer Macchiato and Supremo models.
6061 aluminum body, anodized Black
68mm bottom bracket width
Outside diameter is 2 3/8" (60mm)
Uses 4mm - Grade 8 allen bolts
Self-locking plates are heat-treated stainless steel