STACYC Gearbox – 12eDrive
Restored transmission. Reliable performance. Smooth operation.
Replacement gearbox specifically designed for the STACYC 12eDrive.
“The motor was spinning, but the wheel wasn’t following properly. You could hear a stripping noise.”
Typical experience. Internal gearbox wear leads to loss of traction and abnormal mechanical noise.
Important – Gearbox compatibility
This gearbox is designed for the STACYC 12eDrive only.
The 12" and 16" gearboxes are not interchangeable. Although the housings may appear identical, the motor drive gears are different sizes and require the correct gearbox.
✔️ 12" gearbox → 12" motor
❌ 12" gearbox → 16" motor
Why replace the STACYC gearbox
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Efficient transmission: optimal power transfer from motor to drivetrain
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Restored performance: eliminates power loss caused by internal wear
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Increased reliability: critical drivetrain component
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Direct replacement: designed for proper fit on compatible models
Compatibility
- ✔️ Compatible with STACYC 12eDrive
- ❌ Not compatible with STACYC 16eDrive
- ❌ Not compatible with 16eDrive Elite / 18eDrive / 20eDrive / 16HDrive / 20HDrive
Diagnosis & wear signs
- Stripping / grinding noise under acceleration
- Motor spins but wheel does not follow correctly
- Grease appears gray (metal contamination)
- Common failure at the outer ring gear (broken teeth)
Note: in most cases, the small internal gears are not the issue — the outer ring gear is typically where failure occurs.
Key features
- Complete STACYC gearbox assembly
- 12" gearbox ratio: 11.4
- Designed specifically for STACYC 12eDrive
- Built for durable and consistent performance
Usage & installation
- Replacement for worn or damaged gearbox
- Restores proper power transmission
- Requires motor and 90° gearbox disassembly
Important: basic mechanical skills are required. Not overly complex, but requires proper understanding.
Bolts may be secured with threadlocker (visible as white residue). If they resist, use a heat gun carefully to soften the compound and avoid breaking bolts.
Broken bolts are not covered under warranty.
Warranty
🛡️ Official STACYC manufacturer warranty:
This product is covered against manufacturing defects for a period of 30 days, in accordance with the manufacturer’s policy.
✅ Canadian customer support
✅ Secure payments
✅ 30-day satisfaction guarantee
Restore your STACYC 12eDrive drivetrain — order the correct replacement gearbox today.
