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.
Shipping information
Orders are prepared as quickly as possible. Delivery times and shipping costs are calculated at checkout based on the destination and items ordered.
Returns & warranty
Please verify fitment and part number before ordering. Contact Thrifty Scooters promptly if an item arrives damaged or incorrect.