Rear Sprocket 45T Steel
C45 steel rear sprocket, induction hardened at the tooth and machined flat so it sits true against the carrier. Steel over aluminium here is a deliberate trade of weight for a service life measured in seasons.
Key specifications
- Brand: Apex Drive
- Part number: AX-CHN-3125
- Department: Chain & Drive
- Warranty: 2 years / 24,000 miles
Fitting notes
Check the part number against your vehicle before fitting. If you are unsure, send us the registration and we will confirm the correct reference for you — there is a box for it on this page where the option applies.
Delivery and trade accounts
Ordered before 5pm on a working day, this leaves the same day for next-day delivery. Trade account holders see net pricing at checkout and can collect from the counter instead.
More in Chain & Drive — customers fitting this part also buy Chain & Sprocket Kit 520 Heavy Duty and X-Ring Chain 525 x 120 Links.




