Once we rolled out Switch Infinity on big wheels, the SB4.5 quickly became the answer for riders looking for a ultitalented rig. The SB4.5 frame design is optimized for 29” wheels and has a distinctly different personality than 29ers of old, ensuring the rider feels perfectly balanced between the wheels, not top heavy or lumbering. The proficient Switch Infinity suspension platform and short chainstays make this bike feel effortless on climbs and lively and plush on descents.
- Switch infinity patented suspension system
- High modulus carbon fiber main frame and swing arm
- Collet axle system on pivots reduces bearing wear
- Tapered inset headtube (44mm/56mm)
- Enduro max sealed bearings
- Integrated axle and derailleur hanger system