Unlock the full potential of your 250cc drivetrain with Dr. Pulley Sliding Weights (23x18). Specifically engineered for the Honda CN250 (Helix) and liquid-cooled 172mm engines, these patented sliders are the ultimate upgrade over traditional round roller weights. By utilizing a sliding motion rather than rolling, these weights allow your variator to open further for higher top speed and smoother, more consistent acceleration. The self-lubricating SL-composite material also resists the flat spots that degrade performance in standard rollers over time.
Also listed as OPS SKU 169-219-12g.
Performance Tuning Guide
Lighter Weights (12g–16g): Best for quick take-offs, hill climbing, and stop-and-go city riding.
Mid-Range (18g–20g): The sweet spot for balanced daily commuting and reliable power.
Heavier Weights (22g–24g): Ideal for highway cruising, maximizing top speed, and maintaining lower RPMs at high speeds.
| Brand |
Compatible Models (23x18) |
| Honda |
Helix (CN250), Elite 250 (CH250), Big Ruckus (PS250), Reflex (NSS250) |
| Kymco |
Xciting 250, People 250/S, Bet & Win 250, Grand Vista 250 |
| CF Moto |
V3 (CF250T-3), V5 (CF250T-5), Fashion, Glory |
| Other |
Water-cooled 172mm drivetrains and most 250cc Chinese clones |
Orientation is critical — ensure the Dr. Pulley logo faces the correct direction during installation.