Does it fit your motorcycle?
Look it up by licence plate or VIN, or choose your model.
Confirmed compatible · Position:
This part doesn't fit your bike. See parts that fit
Fits most motorcycles
Not model-specific. Check dimensions and specifications in the description before ordering.
Chosen by size, not by model
The size is printed on the tyre sidewall, e.g. 120/70 ZR17, and in your registration document.
Checking fitment…
Fitment check unavailable
Primo Big Twin Mainshaft Support Plate
Product info
- Item number
- 735581
- Position
Running an open belt drive on 1970-early 1984 4-speed Big Twin normally means you lose the main shaft support from the inner primary housing. This bearing support is the solution for models with chain final drive. Does not fit Big Twin originally supplied with final belt drive or late 1984-1986 Big Twin originally supplied with a diaphragm clutch.
Main shaft support with sealed bearing
Mainshaft Support Plate
- Category: Multi-Fit Belt Drive Parts
Free shipping to a GLS parcel shop or parcel box on orders over €200.
We ship your order as quickly as we can. Orders are usually packed within 24 hours on weekdays.
You have a 14-day right of return. Read more
4.8 out of 5 on TrustpilotRead our reviews →
Certified e-mærket web shop
