Collection: SMC Clutches

Run SMC clutches in your go-kart, and you get centrifugal units that engage smooth and hold up lap after lap. We've stocked these for years because they deliver consistent performance without the drama of cheaper imports. SMC started making clutches specifically for kart racing, focusing on lightweight shoes, strong springs, and hubs that fit most chassis setups.

Why SMC for Your Kart Build

SMC clutches shine in high-RPM action. The centrifugal design means no belts slipping at launch; shoes fly out at the right speed and grip hard. We see them on everything from LO206 clones to X30 big blocks. Technicians like the easy shoe adjustments, too. Swap springs for track conditions, or drop in heavier shoes for more low-end punch on tight courses.

Stock comes in 5, 6, or 7 shoe models, matching engine sizes from 100cc up to 450cc. Hubs bolt to standard 3/4-inch or 1-inch shafts. No custom machining needed. Pair with our Bando or Gillis belts for a setup that shifts clean through gears.

Classes Where SMC Dominates

• Junior and Senior Animal: Light shoes keep revs high.
• KA100 and LO206: Balanced engagement for clone racing.
• ProKart and X30: Heavy-duty springs handle 15,000 RPM bursts.
• Outlaw and Spec: Affordable rebuild kits extend life.

Owners tell us these clutches cut maintenance time. Clean the drum every few weekends, check shoe wear, and you're good. We carry full rebuild kits with arbors, so you press shoes out at the shop. Prices beat OEM on most brands, and they ship fast.

Browse the full SMC lineup here. Need torque specs or spring rates? Hit the chat or call; we've tuned hundreds. Grab one for your next race, and feel the difference in corner exits.