Sprocket and Freewheel for Razor MX500/MX650/RSF350/SX500
Sprocket and Freewheel for Razor MX500/MX650/RSF350/SX500
$57.17
10 in stock
*Note: Free shipping to U.S. mainland (excludes AK, HI, and territories)
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Product Details
Description
Razor Sprocket and Freewheel for MX500/MX650/RSF350/SX500
Key Details
- 119-241
Replacement Part Details
Use this part when the original component is worn, damaged, missing, or no longer working correctly. Many scooter parts can look similar but use different sizes, plugs, brackets, thread patterns, or mounting styles, so careful comparison before purchase is recommended.
Additional information
| Weight | 1.8 lbs |
|---|---|
| Dimensions | 10 × 10 × 5 in |
| Condition | New |
|---|
Drive System Restoration: Razor Sprocket & Freewheel
Restore the smooth power delivery of your electric dirt bike with the Universal Parts Sprocket and Freewheel Assembly. Engineered specifically for high-torque Razor motors, this complete unit replaces worn, slipping, or "frozen" rear drive assemblies. By combining a precision-machined sprocket with a heavy-duty internal freewheel, this assembly ensures your chain grabs instantly during acceleration and coasts freely when you let off the throttle.
Technical Performance Features
- Complete 3-Piece Assembly: Includes the drive sprocket, high-engagement freewheel, and a protective outer guard to prevent chain derailment or debris interference.
- OEM Thread Precision: Features a standard M34 x 1.00 thread pitch for a seamless "spin-on" installation to your factory rear wheel hub.
- Durable Steel Construction: Designed to withstand the high-torque demands of 500W and 650W motors without premature tooth wear.
- #25H Chain Optimized: Specifically profiled for #25H "Heavy Duty" chains, ensuring maximum contact area and reduced mechanical noise.
Comprehensive Fitment Guide
This assembly is a direct-fit replacement for the following Razor electric vehicles:
| Model Family | Version Compatibility |
|---|---|
| Razor MX500 / MX650 | MX500 (V22+) / MX650 (V15+) |
| Razor SX500 / McGrath | Versions 1 and up |
| Razor RSF350 | Electric Sport Bike (Standard Fitment) |
| Razor MX350 / MX400 | Compatible with select mid-frame versions |
Technical Specifications
- Chain Size: #25H
- Thread Pitch: M34 x 1.00
- Outer Diameter: 7 Inches
- Cross-Ref Part #: W15165070142, W15128199013
Mechanic's Note: If your motor is spinning but the rear wheel isn't moving, your internal freewheel has likely failed. Installation Hack: These are "spin-on" parts that tighten as you ride. Pro Tip: To remove the old one, you may need a Freewheel Removal Tool or a hammer and punch—don't forget to apply a small amount of anti-seize to the threads before installing the new unit to make future service easier!
SKU: 119-241
Vendor: Universal Parts
