Ace Redrive - GK/Odes/LZmoto Toothed Belt PSRU (Up to 85HP)

Ace Redrive – GK / Odes / LZmoto Toothed Belt PSRU (Up to 85HP)

Purpose-built for high-output ATV V-Twin engines — the most powerful Ace redrive in the lineup.

The GK/Odes/LZmoto redrive is Ace Aviation's heavy-hitter, engineered specifically for the growing class of high-output ATV-derived V-Twin engines that are rapidly becoming the powerplant of choice for ultralight and light sport experimental aircraft builders. These engines — used in Odes, GK, LZmoto, and similar platforms — offer exceptional power-to-weight ratios at a fraction of the cost of certified aviation engines, and this redrive unlocks their full potential for aircraft use.

With a toothed synchronous belt and Ace Aviation's signature SKF bearing construction, this unit delivers a locked, no-slip drive ratio at up to 85HP — making it one of the most capable PSRUs available for experimental builders at any price point. As the exclusive US & Canada distributor, Ace Redrives USA ships from domestic stock.

🔧 Engine Compatibility

• GK (Gaokin) V-Twin ATV engines
• Odes V-Twin ATV engines
• LZmoto V-Twin ATV engines
• Compatible clones and derivatives with matching crankshaft spec

Not sure if your engine is compatible? Contact us before ordering — we'll confirm fitment.

⚙️ Technical Specifications

🚀 Why ATV Engines + Ace Redrives Are Changing the Game

Transport Canada's own Aviation Safety Letter documented a builder successfully flying an ATV-derived V-Twin with an Ace Aviation redrive, calling out the Ace redrive's engineering responsiveness as a key factor in solving real-world installation challenges. The ultralight community is embracing these engines because they are:

• Mass-produced — thousands manufactured monthly, meaning parts availability is excellent
• Fuel-injected & electronically ignited — more reliable than carbureted two-strokes
• Significantly cheaper than certified aviation engines
• Proven in the field — millions of hours in ATV/recreational use before ever reaching an airframe

✅ Why Builders Choose Ace

• Eccentric Shaft Tensioner — Set belt tension in under 5 minutes with a single Allen key. No special tools, no guesswork.
• SKF Bearings — Industrial-grade, built for hundreds of flight hours.
• US-Stocked — Ships from the USA. No import delays, no surprise tariff invoices.
• Fully Assembled — Arrives ready to install. No machining required.
• Dedicated US Support — Ace Redrives USA provides real, responsive technical support for your installation.

📦 What's Included

• Complete Ace Aviation Toothed Belt Redrive unit (fully assembled)
• All nuts and bolts for joining redrive components

⚠️ 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).

Questions about fitment? Contact Ace Redrives USA — we're here to help you get the right unit for your build.