The front wheel hub contains the Wheel Bearings. The brake rotor (or brake drum) is bolted to the hub.
Overview
Part Numbers
DRUM - ASSY-HUB ROAD WHEEL FRONT
- B110: 40202-18051 DRUM BRAKE
- B210: 40202-18000 DRUM 1974-1975
- B210: 40202-H7405 DRUM 1976-1978 Japan
??? (is this drum or disc hubs?)
- B210: 40202-H7425 DRUM 7510- Van Japan
- B210: 40202-H7425 DRUM 1976-1978 Japan
DISC - ASSY-HUB ROAD WHEEL FRONT
- B110: 40202-H1005 DISC BRAKE
- B210: 40202-H1005 DISC 1974-1975 GX
- B210: 40202-22000 DISC -0775 USA
- PB210: 40202-22050 DISC 1974-1975
- PB210: 40202-A0155 DISC 7510-
- B210: 40202-A0155 DISC 0875- USA
- B210: 40202-A0155 DISC 1976-1978 L16 Japan
- B310: 40202-H7405 DISC, small rotor (Canada A12A)
- B310: 40202-W5050 DISC, large rotor (A14/A15, A12A USA)
Grease Caps
B10, B110 and early B210 uses the smaller size dust cover
40234-18000 CAP-HUB FRONT WHEEL
Larger caps
40234-28500 CAP-HUB FRONT WHEEL * B310 (both hub types) * Late B210 (both hub types)