Prima 18x14mm CVT roller weight set showing six black composite barrel rollers with gold brass center bushings for GY6 scooter CVT variator tuning Prima 18x14mm CVT roller weight set showing six black composite barrel rollers with gold brass center bushings for GY6 scooter CVT variator tuning
Prima 18x14mm CVT roller weight set showing six black composite barrel rollers with gold brass center bushings for GY6 scooter CVT variator tuning

Prima

Prima CVT Roller Weight Set 18x14mm - Buddy 125/150/170i GY6

SKU ROLL18X14 7.5 G
$11.00
Shipping calculated at checkout.
Options: 7.5 G
Description

Fine-tune your CVT performance with Prima 18x14mm CVT Roller Weights. Sold as a set of 6 black composite barrel rollers with gold brass center bushings. Changing roller weight shifts the CVT shift curve — lighter rollers favor low-end acceleration and hill climbing; heavier rollers raise top-end speed on open roads. Select your weight above.

Weight selection guide: Genuine Buddy 125 uses 11.5g stock; Blur uses 14g stock. Lighter than stock improves off-the-line response. Heavier than stock raises top speed. Heavier riders or stock engines benefit from lighter rollers; lighter riders or big bore builds can run heavier.

Specifications

  • SKU: ROLL18X14
  • Diameter: 18mm
  • Width: 14mm
  • Available Weights: 7.5g, 8.0g, 8.5g, 9.0g, 9.5g, 10.0g, 11.0g, 11.5g, 12.0g, 13.0g, 13.5g, 14.0g, 15.0g, 16.0g
  • Construction: Black composite roller with brass center bushing
  • Quantity: Set of 6

Compatibility

Fits Genuine Buddy 125, Buddy 150, Buddy 170i, Buddy 220i, and Blur 150. Also compatible with GY6-based 125/150/169cc CVT engines including the following engine codes: 157QMJ, 161QMK, 1P61QMK, BN161QMK-A, 152QMI, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ, and other QMJ, QMK, and QMI variants. If your engine code contains "QM" or "FM" this roller size is likely compatible.
Product Diagrams
Features
  • Set of 6 Black Composite Barrel Rollers with Gold Brass Center Bushings
  • 18mm Diameter x 14mm Width — 14 Weight Options from 7.5g to 16.0g
  • Lighter Rollers: Improved Low-End Acceleration and Hill Climbing
  • Heavier Rollers: Higher Top-End Speed on Open Roads
  • Fits Genuine Buddy 125/150/170i/220i, Blur 150, and GY6 CVT Engines (157QMJ, 152QMI, 161QMK and more)
Specifications

SKU: ROLL18X14 | Diameter: 18mm | Width: 14mm | Weights: 7.5g-16.0g (14 options) | Construction: Black composite with brass bushing | Qty: Set of 6 | Fits: GY6 157QMJ, 161QMK, 152QMI and QM/FM variants
Model Fitments

Genuine Buddy 125 | Genuine Buddy 150 | Genuine Buddy 170i | Genuine Buddy 220i | Genuine Blur 150 | GY6 157QMJ | GY6 152QMI | 161QMK | 1P61QMK | BN161QMK-A | YN1P57QMJ | 1P52FMI | 154FMI | JJ157QMJ | 1P57QMJ | BN157QMJ | Other QMJ/QMK/QMI engines
  • Same day shipping for orders placed before 2PM (CST) M-F
  • 30-day return period on eligible items
  • Flat-rate shipping for orders shipped to the 48 Contiguous United States.
Options: 7.5 G
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