Bombtrack Arise Geared Commuter Bicycle 650B Blue S Model-Grippler The boost offset optimizes this

The boost offset optimizes this spider for the M30 cranks with a 52mm chainline

Model OiOi Rails CrMo top Synthetic Color Camo LxW (mm) 278x147 Weight 270g

Non floating replacement pulley works at upper or lower

Not compatible with stems with clamp wider than 60mm

- Premium quality cartridge bearings throughout

Bombtrack Arise Geared Commuter Bicycle 650B Blue S Model-Grippler The boost offset optimizes thisFrame: 4130 double butted crmo, heat treated front triangle, TA sliding dropouts, rack fender mounts, 68 mm BSA BB shell Fork: 4130 crmo, TA, rack fender mounts, internal hub dynamo cable routing Levers: Shimano BL M200 hydraulic brake levers Shifter: Microshift Advent SL M8195 R shifter 1 x 9 Brakes: Shimano BR MT200 post mount hydraulic disc brake Crankset: Bombtrack TAF19 aluminium crank, 24 mm spindle Bottom Bracket: BSA sealed BB, external cups