GYMMEDS Centrifugal Clutch 3/4" Bore 10-Tooth with #40/41/420 Chain — Predator 212 & 2–6.5HP Engine Fit, Steel

GYMMEDS 3/4" Bore 10-tooth centrifugal clutch with #40/41/420 chain delivers reliable, automatic engagement for small engines like Predator 212 and 2–6.5HP Honda clones.

This compact clutch assembly is designed for single-wheel-drive go-karts, minibikes, lawn equipment and other small-engine projects that use a 3/4" crankshaft with a 3/16" keyway. Built from high-impact, wear-resistant steel and supplied with a chain, bolt, washer kit and wrench, the unit offers a ready-to-install drivetrain solution for hobbyists, mechanics, and repair tasks where simple centrifugal engagement and rugged materials are required.

How does this clutch engage and protect my small engine?

The centrifugal design uses weighted shoes that expand outward as engine RPM rises, transferring torque to the driven sprocket without manual intervention. This automatic engagement reduces stall risk at idle and provides progressive power delivery under load.

• 10-tooth sprocket matched to #40/#41/#420 chain for common small-engine setups
• Centrifugal shoe design for smooth, RPM-based engagement
• Durable steel construction reduces wear and dissipates heat

Which engines and vehicles is this clutch compatible with?

The clutch fits most 3/4" crankshafts with a 3/16" keyway, including popular 2–6.5HP engines and Predator 212 models used in kart and mini-bike builds. It’s also compatible with many Honda clone engines and some Briggs & Stratton-style small motors.

• Direct fit for Predator 212 and many 5.5–6.5HP clone engines
• Compatible with Honda GC/ GX series (examples: GC160, GC190, GX120, GX140), and similar 2–6.5HP engines
• Works with equipment like go-karts, minibikes, lawnmowers, generators, and mini choppers

What’s included and how hard is installation?

The clutch ships as a complete kit: clutch unit, matched chain, mounting bolt, washer kit and a wrench. Installation is straightforward for anyone familiar with small-engine crankshaft hardware—mount to the crank using the supplied bolt and washer, align the chain and adjust tension.

• 1 x 3/4" bore 10-tooth clutch and shoe assembly
• 1 x #40/#41/#420 compatible chain plus bolt, washer kit and wrench
• Simple bolt-on fit—verify 3/4" shaft and 3/16" keyway before installing

What performance and durability can I expect?

Manufactured from high-strength, wear-resistant steel, the clutch balances lightweight behavior with torque capacity for small engines. The material choice and shoe design promote faster heat dissipation and longer service intervals under normal hobbyist or light commercial use.

• High-impact steel resists wear and transfers torque efficiently
• Lightweight construction helps minimize rotating mass
• Designed for repeated engagement cycles in typical kart and small-equipment use

Who is this for: This GYMMEDS centrifugal clutch is aimed at go-kart builders, minibike hobbyists, small-engine repairers, and DIY landscapers who need a robust, bolt-on clutch for 3/4" crankshaft engines (2–6.5HP range). If you’re converting an engine to single-wheel drive, repairing a clutch on a Predator 212 or a Honda clone, or assembling a compact drivetrain with a #40/#41/#420 chain, this kit provides the core parts for reliable, automatic engagement and straightforward installation.