Razor Sprocket & Freewheel MX500/MX650/RSF350/SX500
ITEM# TT-16403
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Description
Sprocket and Freewheel Assembly for Razor MX500, MX650, RSF350, and SX500
This sprocket and freewheel assembly is made to bring back smooth performance on your electric dirt bike. It works as a dependable swap-in for rear drive parts that are worn or no longer working properly. It engages well when you accelerate and lets the wheel coast freely once you let off the throttle, which makes a noticeable difference in how the bike rides. It is one of the Razor scooter parts you can rely on to keep things running well under tough use.
Build and Structure
The assembly is made up of three main pieces: the drive sprocket, a tough freewheel mechanism, and a guard that helps keep the chain on track and out of debris. Together these parts support smoother operation and a longer service life. The steel construction is intended to handle the demands of 500W and 650W motors and to hold up against wear over time.
Setup and Compatibility
This assembly uses a standard M34 x 1.00 thread pitch and threads onto the factory rear wheel hub with a simple spin-on fit. If the motor runs but the rear wheel stays still, the internal freewheel may have failed. Removing the old unit may require a dedicated removal tool, or a hammer and punch. Putting anti-seize on the threads will make future changes easier.
Specifications
- Material: Steel
- Chain Size: #25H
- Thread Pitch: M34 x 1.00
- Outer Diameter: 7 Inches
- OEM Part Number: W15165070142, W15128199013
- Fits: Razor MX500/MX650 (MX500 V22+, MX650 V15+), SX500/McGrath versions 1 and up, RSF350 Electric Sport Bike
Fitment
Fits:
- Razor MX500 (V22+)
- Razor MX650 (V15+)
- Razor SX500 / McGrath (versions 1 and up)
- Razor RSF350 (Electric Sport Bike, standard fitment)
- Razor MX350 / MX400 (select mid-frame versions)
How to choose: Compare your scooter's version with the list above, and confirm your chain is #25H, the sprocket is 7 inches, and the thread is M34 x 1.00.
Shop more: Razor Scooter Parts · Scooter Chains & Sprockets · Scooter Parts
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