WS9 C35 wheels are available with three different hubs. HF4 is a classic J-bend hub, while HB1 series are straight pull. HB1 PARCA freehub is completely silent while coasting, providing quiet rides with instand engagement. HF4 and HB1 (non-PARCA) include the G72 ratchet mechanism present in Ridea road bike hubs.
This wheelset is built with Ridea hubs specifically designed to fit Brompton bikes, but it may be also compatible with other brands that use the same OLD used by Brompton.
| P/N | Hub | Spoke insertion | Spoke count (F/R) | Hub color | Axle width (mm) | Rim | Rim W/H/D (mm) | Weight (g) |
| WS9 C35 | HF4 | J-bend | 20/28 | Black, gold, silver, matte red | 74/112 | 12K carbon | 23/35/349 | 1000 |
| HB1 | Straight Pull | 16/20 | 970 | |||||
| HB1 PARCA | Black | |||||||
| HB1 | Black, gold, silver, matte red | Carbon Forged | ||||||
| HB1 PARCA | Black |