Product Details
DESCRIPTION: Same as the Stage 1 plus Prima 161cc cylinder kit. A complete overhaul for your Buddy. Gives you more on the top and bottom end. A must have for anyone wanting more power for less money.Save 10% by purchasing this kit, as opposed to buying the parts individually. Voids your factory warranty–throw caution to the wind!This product is not compliant with the EPA or California Air Resources Board for use on roads or lands. This product is for closed-course competition onlyNot legal for use in California on pollution controlled vehicles. Check local laws before installing.This product is not intended for use on public roads or land.
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Fits Models / Common Applications: Genuine Buddy and other compatible models may apply.
- Fitment Notes: Performance
Fitment Guide: This compatibility information is based on manufacturer and supplier data. Listed models are common known applications and may not include every compatible scooter. If your scooter has multiple versions or production changes, confirm the correct match before ordering. Check photos, measurements, original part numbers, engine code, model, and related fitment information whenever possible.
Common Fitment Questions
Q: Will this fit a Genuine?
A: This SKU is listed with Genuine model fitment where the scooter also matches the listed engine or fitment notes.
Additional information
| Weight | 25 lbs |
|---|---|
| Dimensions | 36 × 12 × 12 in |
Take your Genuine Buddy 125 to the next level with this complete Stage 2 Performance Kit. Building on the Stage 1 foundation, this kit adds the Prima 161cc big bore cylinder upgrade for serious gains on both the top and bottom end. All five components are hand-selected to work together as a tuned system, and purchasing as a kit saves 10% versus buying the parts individually.
Kit Contents
- 1100-1287 — Prima 161cc Big Bore Cylinder Kit (58.5mm) | Genuine Buddy 125
- PE31 — Prima Performance Stainless Exhaust | Buddy 125/150/170i
- 1200-1027 — NCY 1500 RPM Compression / Contra Spring | GY6 125–200cc CVT
- ROLL18X14 — Prima Roller Weight Set (18x14mm, 9.5g) | Buddy 125/150/170, GY6
- 1300-1129 — Prima 4mm Main Jet Tuning Kit | Keihin PB & CVK Carburetors
- Big Bore Displacement: 161cc (58.5mm bore)
- Exhaust: Prima performance stainless steel
- Contra Spring: NCY 1500 RPM
- Roller Weights: 18x14mm, 9.5g
- Jet Kit: Prima 4mm main jet set (Keihin PB / CVK)
- Fitment: Genuine Buddy 125 (all years)
- Kit Savings: 10% vs. individual part pricing
- Genuine Buddy 125 (all years)
NOTICE: Voids factory warranty. For off-road and closed-course competition use only. Not legal for use in California on pollution-controlled vehicles. Check local laws before installing.





