The most affordable, field-proven PSRU for V-Twin commercial engines — now stocked in the USA for fast delivery.
Ace Aviation has sold over 685 redrives worldwide, and it's easy to see why. Builders consistently call these units "pieces of art" — precision-machined, lightweight, and engineered to handle the demands of ultralight and light sport experimental aircraft. As the exclusive US & Canada distributor, Ace Redrives USA ships from domestic stock — no more waiting 6–12 weeks from overseas.
Fits V-Twin engines from 627cc to 993cc, including:
| Drive Type | V-Groove Poly Belt |
| Standard Ratio | 1.8:1 |
| Redrive Weight | 3.9 kg (8.6 lbs) |
| Bearings | Premium SKF (industrial grade) |
| Belt Tension | Max 29 Nm |
| Crankshaft Requirement | Standard parallel, 1" to 1-7/16" |
| Ships As | Fully assembled |
⚠️ Note: Keyless bush for small pulley-to-crankshaft connection is not included (customer-supplied). Mounting bolts from backplate to engine crankcase are not included (customer-supplied).
Choose the variant that matches your engine's output:
Questions about fitment? Contact Ace Redrives USA — we're here to help you get the right unit for your build.
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★★★★★Leslie M.Couldn't be happier with the service I received from this company.
Toronto, ON
★★★★★Rachel F.Really went out of their way to make me feel special as a customer, highly recommend!
Los Angeles, CA
★★★★★Sam R.Fantastic fabrics, great fit and no issues going through the laundry either!
Brooklyn, NY
★★★★★Sharon S.Arrived fast and beautifully boxed. They even let me model on their site :)
New Orleans, LA
★★★★★Matt C.Couldn't be happier with the service I received from this company.
Montreal, QC
