Dr. Pulley
Dr. Pulley 23x18 Variator Slide Set: CN250 Engines
Description
Dr. Pulley 23x18mm Variator Sliders
Eliminate variator "clatter" and restore smooth shifting with the Dr. Pulley Variator Slide Set. Unlike standard plastic guides that wear quickly and cause sticking, Dr. Pulley sliders are manufactured from a proprietary, self-lubricating nylon compound. Designed for the large-format 250cc and high-performance GY6 variators, these pieces provide the low-friction interface necessary for the ramp plate to move effortlessly, ensuring consistent acceleration and extended CVT life.
Technical Performance Features
- Proprietary Low-Friction Material: Features Dr. Pulley’s signature heat-resistant nylon, which eliminates the need for messy grease and resists "flat-spotting" under high-load conditions.
- Precision Anti-Rattle Fit: Engineered to tighter tolerances than OEM guides, reducing internal vibration and protecting your variator housing from premature wear.
- Extreme Heat Stability: Maintains its structural integrity and lubricity even in the high-temperature environment of long-distance maxi-scooter touring.
- Long-Life Durability: Outlasts standard slider pieces by up to 3x, making it the ideal choice for heavy-duty commuters and performance tuners alike.
Comprehensive Fitment Guide
This 24x18mm slide set is designed for "Large Format" CVT systems, including 250cc Honda Clones and High-Performance GY6 builds:
| Engine Type | Common Compatible Models |
|---|---|
| Honda / Helix | Honda Helix CN250, Elite CH250, Big Ruckus PS250 |
| Vespa / Piaggio | Vespa GTS 250/300, GTV 250/300, Piaggio BV 250/300 |
| 250cc Chinese Clones | CFMoto 250, Jonway Master 250, Roketa Spyder, JMStar 250 |
Technical Specifications
- Dimensions: 23mm x 18mm
- Quantity: Set of 3 Sliders
- Material: Self-Lubricating SL-8 Polymer
- Manufacturer: Dr. Pulley (Union Material)
Mechanic's Note: If your engine code starts with "QM" or "FM", these are likely the correct sliders for your 250cc unit. Slide pieces are the most overlooked part of CVT maintenance; if they are cracked or loose, your variator cannot "shift" smoothly, leading to flat spots in your acceleration. Pro Tip: Always clean the ramp plate channels with brake cleaner before installing these new sliders to ensure a grit-free surface.
SKU: 1200-1267 Original Parts For Scooters SKU 169-368
MPN: SP2418-K
Product Diagrams
Model Fitments
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