Universal Parts 11-Tooth Electric Motor Sprocket - #25 Chain
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Get your electric scooter or mini-chopper back in motion with the Universal Parts 11-Tooth Front Motor Sprocket. Designed for MY1016/MY1020-style small electric motors, this sprocket features a "Double-D" bore with two flat sides for a non-slip, keyed fit on the motor shaft. Precision-cut teeth ensure smooth #25 chain engagement and quiet, reliable power transfer.
Key Features
- Double-D Bore: Two flat sides (8.6mm apart) lock onto the motor shaft, preventing free-spinning under load.
- 11-Tooth Torque Profile: Ideal balance of low-end take-off torque and consistent top speed for small electric vehicles.
- #25 / #25H Chain Compatible: Fits the most common drive chain size used in electric powersports.
- Heat-Treated Steel: Resists tooth hooking and wear even with frequent stop-and-go use.
Technical Specifications
- Tooth Count: 11
- Outer Diameter: 25.5mm
- Inner Diameter (flat to flat): 8.6mm
- Inner Diameter (round to round): 10mm
- Chain Size: #25 / #25H
- Part Number: 127-7
Compatibility
Universal fit for 24V, 36V, and 48V electric motors (200W–500W) with Double-D shafts:
| Vehicle Type | Common Models |
|---|---|
| Razor Scooters | E300, Pocket Mod, Ground Force Go-Kart |
| Razor Dirt Bikes | MX350, MX400 (verify shaft shape) |
| Electric Mini-Choppers | Generic 250W–350W Boreem-style choppers |
| Motors | MY1016, MY1018, MY1020 (8.6mm flat shafts) |
Installation Tips
- Before ordering, verify your motor shaft shape. Razor and other manufacturers sometimes switch between Double-D (two flat sides) and round keyway shafts. This sprocket fits Double-D shafts only.
About Universal Parts
Universal Parts is a leading supplier of OEM-compatible replacement components for electric scooters and powersports vehicles. Their parts are engineered to factory specifications for reliable performance and straightforward installation.
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