858 NSW Rear Wheel - D1 Cassette Body Type:Shimano HG 11/12-Speed Road The Bellwether Newton 2

The Bellwether Newton 2

Adjustable positive air spring

For next generation eeWings ONLY

The pulley wheels on the 12-tooth derailleur cage allow the chain to move more smoothly

858 NSW Rear Wheel - D1 Cassette Body Type:Shimano HG 11/12-Speed Road The Bellwether Newton 2Zipps 858 NSW wheels are now faster than ever, thanks to their Total System Efficiency (TSE) technology. This design includes a tubeless, hookless rim that reduces weight and creates a smooth fit with the tire. Despite having deep rims, the 858 weighs as little as much shallower wheels. Its 23mm internal width is ideal for wider tires run at lower pressures, which helps reduce rolling resistance. TSE technology addresses four key speed barriers: wind