Prima 18x14mm roller weight kit for GY6 125-170cc scooters. 36 rollers, 6g-17g range. Dial in your CVT for acceleration or top speed. SKU 1400-1070. Prima 18x14mm roller weight kit for GY6 125-170cc scooters. 36 rollers, 6g-17g range. Dial in your CVT for acceleration or top speed. SKU 1400-1070.
Prima 18x14 Roller Weight Tuning Kit - 6g to 17g weights to custom tune your CVT Variator Prima 18x14 Roller Weight Tuning Kit - 6g to 17g weights to custom tune your CVT Variator
Prima 18x14mm roller weight kit for GY6 125-170cc scooters. 36 rollers, 6g-17g range. Dial in your CVT for acceleration or top speed. SKU 1400-1070.
Prima 18x14 Roller Weight Tuning Kit - 6g to 17g weights to custom tune your CVT Variator

Prima

Prima 18x14mm Roller Weight Tuning Kit - GY6 125-170cc

SKU 1400-1070
$39.00
Shipping calculated at checkout.
Description

Dial in your CVT with the Prima 18x14mm Roller Weight Tuning Kit. This master set includes 12 weight sets ranging from 6g to 17g — 36 rollers total — so you can test multiple configurations to find the perfect balance of acceleration and top speed for your riding style and engine setup. Mix sets for 0.5g increments (e.g., 3x10g + 3x11g = 10.5g effective). High-quality composite construction resists flat-spotting during tuning.

18x14mm is the standard roller size for many 125cc–170cc scooters.

What's Included

  • 12 roller weight sets: 6g, 7g, 8g, 9g, 10g, 11g, 12g, 13g, 14g, 15g, 16g, 17g
  • 3 rollers per set — 36 rollers total

Specifications

Roller Size 18x14mm
Weight Range 6g – 17g (12 sets)
Total Rollers 36
Engine Compatibility Most 125cc–170cc variators
Brand Prima

Fitment

Genuine Scooter Co. Buddy 125, Buddy 150, Buddy 170i, Buddy Kick 125, Blur 150, Blur 220i
Royal Alloy / Lambretta GT 150, V200
SYM / Lance Fiddle II/III 125, Jet 14 200, Cali Classic 125/150, Havana Classic 125/150, PCH 125/150
Kymco Agility 125, People 125/150 (carbureted models)
Chicago Scooter Co. Urbano 125/150/200i, Rattler 125/200i
Other Brands Ice Bear 150cc models, Adly 125/150, TGB Delivery 150, TGB Laser R9

 

Check compatibility by measuring your current variator roller weights first.  18mm is the roller diameter, and 14mm is the roller width.  Note that many variator rollers will experience slight wear over time, and the diameter will decrease.
Product Diagrams
Features
  • 12 roller weight sets from 6g to 17g — full CVT tuning range
  • Mix sets for 0.5g increments (e.g., 3x10g + 3x11g = 10.5g effective)
  • 36 total rollers — no need to buy multiple individual sets
  • High-quality composite resists flat-spotting during tuning
  • 18x14mm — standard size for GY6 125cc-170cc scooters
Specifications

Roller Size: 18x14mm | Weight Range: 6g-17g | Sets: 12 | Total Rollers: 36 | SKU: 1400-1070 | Engine: GY6 125-170cc | Origin: Taiwan
Model Fitments

Genuine Buddy 125/150/170i/Kick, Blur 150/220i; Royal Alloy GT150, V200; SYM/Lance Fiddle 125, Jet 14 200, Cali/Havana Classic 125/150, PCH 125/150; Kymco Agility 125, People 125/150; CSC Urbano 125/150/200i, Rattler 125/200i; Ice Bear 150cc; Adly 125/150; TGB Delivery 150, Laser R9 — GY6 125-170cc 18x14mm roller variators
  • 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.
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