NiteRider Pro Race 4-cell Li-Ion Battery Cassette Cogs-13-14-15-16-17-19-21-23-26-29 }Portland Design Works Asteroid Taillight

}Portland Design Works Asteroid Taillight

37 BB/Frame Interface English BB Shell Width (mm) 68 BB Shell Width (mm) 73 Weight 406 Spindle Interface Type ISIS Spindle Length 128 Defined Color Black

Intermediate diamond-shaped peaks provide steadfast traction under power while consistent and more substantial knobs extend down the side to protect it against ill-intentioned rocks or gashes while exploring new areas

Races are won and lost by derailleur pulley drag

NiteRider Pro Race 4-cell Li-Ion Battery Cassette Cogs-13-14-15-16-17-19-21-23-26-29 }Portland Design Works Asteroid TaillightNiteRider Pro Race 4 cell Li Ion Battery. Replacement batteries for external battery NiteRider headlights.