lightweight 7-speed cassette designed for Brompton-compatible folding bike drivetrains.

The Neutron B7 cassette offers an 11–30T gear range while keeping the weight down to only 122g, making it a clean upgrade for riders looking for lighter weight and a wider climbing gear.

Compatible with Shimano HG freehub bodies.

Speeds

7-speed

Ratios

11-13-15-18-21-23-30T

Weight

122g

Freehub

Shimano HG

Coating

PVD only