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United Express Distribution  |  SKU: CLTC-0015
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138mm 21 Tooth Variator Kit for CFMoto CF250 172MM Scooter Engines

Regular price $62.99


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Not sure? Text or email a photo of your old part or your engine model number. We'll confirm it fits before you buy.

Delivery and Shipping

Ships from our Duluth, Georgia warehouse.

Most in-stock orders ship the same business day. UPS orders placed before 3:00 PM ET, USPS orders before 12:00 PM ET. After the cutoff, they go out the next business day.

Standard delivery runs 2 to 6 business days to most US addresses. US territories take 7 to 14. These are carrier estimates, not guarantees.

Free shipping on most parts, no minimum order. Oversized items (body kits, wheels, tires, batteries, and engines) are quoted to your address and shown at checkout before you pay.

We ship UPS and USPS, and email your tracking number as soon as the order leaves.

Questions? Call or text 404-532-9833. Full details on our Shipping page.

Description

Upgrade your 250cc vehicle’s transmission system with the RedCap 138mm 21T Variator Kit, engineered specifically for Helix CF250 and 172MM engines. This kit is compatible with a wide range of models including Kinroad Dune, Hammerhead, CFmoto, Baja, Roketa, Dazon, Carter, JCL, and Joyner ATVs, scooters, go-karts, and buggies. Ideal for CFMOTO water-cooled CF250 engines, including V3 and V5 series, the variator delivers a precise fit and high-performance output for vehicles demanding reliable, smooth acceleration and consistent transmission response.

Designed with durability and performance in mind, the kit features high-strength aluminum alloy and steel components with heat-treated surfaces to resist wear and impact. The continuously variable transmission (CVT) design incorporates finely tuned roller pulleys for fast response, seamless acceleration, and an overall boost in vehicle speed. The precision engineering ensures smooth, quiet operation while the complete kit makes installation or replacement hassle-free—perfect for riders looking to restore or enhance their drivetrain system.
  • Wide Compatibility: Compatible with ATVs, scooters, and go-karts using CFMOTO CF250 172MM engines, including models from Kinroad, Hammerhead, CFMoto, Baja, Roketa, Dazon, Carter, JCL, and Joyner. This 138mm 21T variator kit ensures a high degree of compatibility and reliable fitment for the V3 and V5 water-cooled engine series.
  • Enhanced CVT Performance: Built with a continuously variable transmission (CVT) system and responsive roller pulleys, this variator kit delivers smooth acceleration, quick throttle response, and increased top-end speed. Ideal for riders seeking better control, efficiency, and driving performance across diverse terrains.
  • Precision Machined Components: Designed with tight tolerances and a focus on performance, the high-precision pulley system ensures low noise and smooth operation. The refined craftsmanship helps reduce vibration, support consistent belt engagement, and improve overall drivetrain stability during rides.
  • Durable Alloy Construction: Crafted from high-strength aluminum alloy and steel, the variator components undergo heat treatment for added durability. Resistant to wear, impact, and thermal stress, this kit ensures long-lasting performance even under demanding off-road or high-speed conditions.
  • Complete Kit for Easy Replacement: Includes all essential components for a full variator replacement, making installation fast and convenient. Whether you’re upgrading or restoring your vehicle’s CVT system, this complete variator kit eliminates guesswork and ensures a hassle-free repair or performance boost.
Details:
  • Tooth Count: 21 Teeth variator
  • Outer Diameter: 138mm variator
  • Roller Weights Size: 23x18mm
Included in Package:
  • x1 Variator Fan Plate (Cooling Plate)
  • x1 Ramp Plate (Back Plate / Slide Piece Carrier) 
  • x1 Drive Face with Roller Weights
  • x1 Variator Boss Spacer / Sleeve
Engine Compatibility:
  • CF250 172MM water-cooled engine
NOTE: Please check the description to confirm the compatibility before purchase.

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