§ 01 / Part
12111725 SPROCK R 428 49T BL UL SC
incl. VAT
Usually dispatched within 3 working days.
Authorised stockist
RENTHAL
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§ 02 / About this part
What it is
The RENTHAL SPROCK R 428 49T BL UL SC, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.
Engineered for small-bore bikes, this ultralight sprocket sits on the rear hub to reduce rotating mass. The self-cleaning mud grooves prevent dirt build-up between the teeth and chain rollers. This prevents chain tension spikes in heavy conditions. The 428 pitch is specific to smaller engines where weight savings directly impact acceleration. Monitor tooth profile for hooking, especially after muddy race weekends. Swap your sprocket when installing a fresh chain to maximise the life of your drivetrain. Ensure the hub face is clean before torquing the bolts.
§ 03 / Specs
The numbers
- Brand
- RENTHAL
- Part number
- 12111725
- Weight
- 0.37 kg
- VAT
- 20%
// Fitment
Will it fit your bike?
Fits 7 models · 7 year-bands
Gas Gas 2 models
Husqvarna 2 models
KTM 3 models
No matches. Try a different make or model.
* Fitment data is provided as a guide. Verify compatibility against the bike's owner's manual or service handbook before ordering. Iron Offroad accepts no liability for incorrect application. Full terms and conditions apply.
§ 05 / About Iron Offroad
Iron Offroad
