Engine Compatibility Guide

Not sure which Ace Redrive fits your engine? You’re in the right place.

Use this guide to match your engine to the correct PSRU. If you don’t see your engine listed or need confirmation before ordering, contact us — we’ll get you sorted.

Quick Reference Table

Engine	Displacement	HP Range	Recommended Redrive	Belt Type
Briggs & Stratton V-Twin	627–993cc	Up to 28HP	V-Twin V-Groove PSRU	V-Groove
Briggs & Stratton V-Twin	627–993cc	Up to 36HP	V-Twin V-Groove PSRU	V-Groove
Briggs & Stratton V-Twin	627–993cc	Up to 50HP	V-Twin V-Groove or Toothed PSRU	V-Groove or Toothed
Predator 670cc	670cc	Up to 28HP	V-Twin V-Groove PSRU	V-Groove
Honda V-Twin	627–993cc	Up to 50HP	V-Twin V-Groove or Toothed PSRU	V-Groove or Toothed
Subaru V-Twin	627–993cc	Up to 50HP	V-Twin V-Groove or Toothed PSRU	V-Groove or Toothed
Kohler Command V-Twin	627–993cc	Up to 50HP	V-Twin V-Groove or Toothed PSRU	V-Groove or Toothed
Kawasaki V-Twin	627–993cc	Up to 50HP	V-Twin V-Groove or Toothed PSRU	V-Groove or Toothed
Lifan V-Twin	627–993cc	Up to 50HP	V-Twin V-Groove or Toothed PSRU	V-Groove or Toothed
Yamaha V-Twin	627–993cc	Up to 50HP	V-Twin V-Groove or Toothed PSRU	V-Groove or Toothed
GK (Gaokin) ATV V-Twin	800–1000cc	Up to 85HP	GK/Odes/LZmoto Toothed PSRU	Toothed
Odes ATV V-Twin	800–1000cc	Up to 85HP	GK/Odes/LZmoto Toothed PSRU	Toothed
LZmoto ATV V-Twin	800–1000cc	Up to 85HP	GK/Odes/LZmoto Toothed PSRU	Toothed
Yamaha Phazer	499cc	Up to 85HP	Yamaha Phazer Toothed PSRU	Toothed
Honda Silver Wing	600cc	Up to 50HP	Honda Silver Wing V-Groove PSRU	V-Groove
Honda GX200 / GX270 / GX390	200–390cc	Up to 30HP	4-Stroke Single V-Groove PSRU	V-Groove
Briggs & Stratton Single	200–460cc	Up to 30HP	4-Stroke Single V-Groove PSRU	V-Groove
Predator 212cc / 301cc / 420cc	212–420cc	Up to 30HP	4-Stroke Single V-Groove PSRU	V-Groove
Lifan Single-Cylinder	200–460cc	Up to 30HP	4-Stroke Single V-Groove PSRU	V-Groove
Kohler Single-Cylinder	200–460cc	Up to 30HP	4-Stroke Single V-Groove PSRU	V-Groove

Redrive Breakdown by Product

V-Twin 627–993cc V-Groove Belt PSRU

Best for: Budget-conscious builds, lower HP applications, engines where some belt slip is acceptable as a shock buffer.

·      Briggs & Stratton V-Twin (all popular models)

·      Predator 670cc

·      Honda V-Twin

·      Subaru V-Twin

·      Kohler Command V-Twin

·      Kawasaki V-Twin

·      Lifan V-Twin

·      Yamaha V-Twin

·      Any V-Twin with a standard parallel crankshaft (1” to 1-7/16”)

Available HP variants: Up to 28HP | Up to 36HP | Up to 50HP

V-Twin 627–993cc Toothed Belt PSRU

Best for: Higher HP builds requiring a positive, no-slip drive ratio and maximum power transfer.

·      Same engine compatibility as V-Groove above

·      Recommended when running at or near 50HP

·      Positive locked ratio — no belt creep under load

HP rating: Up to 50HP

GK / Odes / LZmoto Toothed Belt PSRU

Best for: High-output ATV-derived V-Twin engines — the most powerful unit in the Ace lineup.

·      GK (Gaokin) V-Twin ATV engines

·      Odes V-Twin ATV engines

·      LZmoto V-Twin ATV engines

·      Compatible clones and derivatives (confirm fitment before ordering)

HP rating: Up to 85HP

Yamaha Phazer Toothed Belt PSRU

Best for: Builders converting the popular Yamaha Phazer snowmobile engine for aircraft use.

·      Yamaha Phazer (all variants) — 499cc liquid-cooled V-Twin

·      Compatible Yamaha snowmobile V-Twin derivatives (confirm before ordering)

HP rating: Up to 85HP

Honda Silver Wing V-Groove Belt PSRU

Best for: Builders using the Honda Silver Wing 600cc parallel-twin — one of the most popular aircraft conversion engines.

·      Honda Silver Wing 600cc (FJS600) — all years

·      Compatible Honda parallel-twin derivatives (confirm before ordering)

HP rating: Up to 50HP

4-Stroke Single Engine V-Groove Belt PSRU

Best for: Ultralight trikes, powered parachutes, single-seat Part 103 builds, and light experimental aircraft running smaller single-cylinder engines.

·      Honda GX200 / GX270 / GX390

·      Briggs & Stratton single-cylinder 4-stroke

·      Lifan single-cylinder 4-stroke

·      Predator 212cc / 301cc / 420cc

·      Kohler single-cylinder 4-stroke

·      Compatible clones and derivatives

Engine displacement: 200cc – 460cc

V-Groove vs. Toothed Belt — Which Do I Need?

Feature	Toothed Belt	V-Groove Belt
Drive Type	Positive / No-slip	Friction-based
Best For	Higher HP, precision ratio	Budget builds, lower HP
Shock Absorption	Moderate	Higher (slip acts as buffer)
Price	Higher	Lower

Not sure which to choose? As a general rule — if you’re running under 36HP and want to keep costs down, go V-Groove. If you’re pushing 40HP+ or want a locked drive ratio, go Toothed.

Still Not Sure?

No problem — that’s what we’re here for. Reach out and we’ll confirm fitment for your specific engine and build.

Contact Ace Redrives USA — Get in touch and we’ll point you in the right direction. ✈️

⚠️ Note: All products are for experimental aircraft use only. No certifications or regulatory approvals apply. Always verify fitment with your specific engine model before ordering.