Description
Suzuki’s RM two-stroke and RMZ four-stroke lines have used the same rear hub bolt pattern since 1989, which is why this Renthal sprocket has stayed in the catalog largely unchanged for just as long, aside from getting lighter. This Renthal rear sprocket, part number 123U-520-49GYPE, is machined from 7075-T6 aluminum that comes in around 33 percent lighter than a comparable steel piece, cutting rotating weight right where it matters most for acceleration and quick direction changes.
Why this sprocket earns its price:
- Grooved face design sheds mud and debris instead of packing it against the chain
- Reduced rotating mass at the rear wheel means less rotational inertia for the engine to overcome out of every corner
- Special tooth profile lets the chain roll on and off the sprocket smoothly instead of binding at each link
- Direct bolt-on fitment for the specified KTM/Husqvarna platform, no adapters or spacers required
Sized at 49 teeth on 520 pitch, this sprocket fits the 1989-and-newer Suzuki RMZ250-450 and RM125-250 range directly, and IPD Racing has it in stock ready to go out same day. Priced at $104.95, it is a genuine Renthal part backed by the manufacturer, and the 89+ Suzuki RMZ250-450/RM125-250 fitment is confirmed against the Renthal 89+ Suzuki RMZ250-450/ RM125-250 Rear Grooved Sprocket – Purple 520-49 Teeth spec before it ever hits our shelf.







