Prima 23x18mm Roller Weight Set: Kymco & CF Moto

Precision Tuning: Prima 23x18mm Performance Roller Weights

Fine-tune your scooter's power band with the Prima Performance Roller Weight Set. Specifically designed for 250cc water-cooled engines (172mm), these weights are the most cost-effective way to customize your riding experience. Whether you are looking for explosive off-the-line acceleration for city traffic or a lower-RPM cruising speed for the highway, changing your roller weights allows you to shift your engine's "sweet spot" to match your specific needs.

The Physics of Tuning

• For Faster Acceleration: Choose lighter weights. This keeps the transmission in a lower gear ratio longer, allowing the engine to reach higher RPMs quickly—ideal for hill climbing and stop-and-go urban riding.
• For Higher Top Speed: Choose heavier weights. These move outward more easily at high speeds, pushing the variator to its maximum extension for better top-end cruising and improved fuel economy on flat roads.
• Durable Composite Construction: Engineered with a high-temperature, low-friction outer shell to prevent flat spots and ensure consistent shifting over thousands of miles.

Comprehensive Fitment Guide

These 23x18mm weights are a direct fit for 250cc Water-Cooled (172mm) engines found in:

Weight Options Available

• Light (10g - 14g): Best for "drag racing" feel, steep hills, and heavy riders.
• Mid (18g - 22g): Balanced performance for general commuting.
• Heavy (24g - 28g): Best for long-distance touring and maximum fuel efficiency.

Mechanic's Note: Roller weights are wear items. Diagnostic Tip: If your scooter feels like it is "shuddering" during acceleration or has lost top-end speed, your weights likely have flat spots and need replacement. Pro Tip: Never use grease inside a GY6 or Kymco variator unless specified by the manufacturer—keep the ramps clean and dry for the best performance. Always check your Variator Slides for wear while the cover is off!

SKU: 1200-1175
Vendor: Prima

Original Parts For Scooters SKU 169-219-12g, 180-131-10g

Model Compatibility: