Performance Kit (Stage 1); Genuine Buddy 50, RoughHouse
Performance Kit (Stage 1); Genuine Buddy 50, RoughHouse
$357.07
Out of stock
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Product Details
DESCRIPTION: Buddy and Roughhouse 50 Stage 1 Performance Kit includes Prima 50 performance pipe, high compression spring, rollers and a main jet kit for maximum tuning advantage. Feel and hear the difference without breaking the bank.Save 10% by purchasing this kit, as opposed to buying the parts individually. Voids your factory warranty–throw caution to the wind!Kit Includes:PE32NCY PERFORMANCE PIPE; GENUINE BUDDY 50, ROUGHHOUSE1200-1053NCY COMPRESSION SPRING (PERFORMANCE); 139QMB 1500rpmRoll 16×136.0 gr PRIMA ROLLER WEIGHT SET (16X13 MM, 6 PCS)Main Jet KitPRIMA KEIHN PB MAIN JETThis kit requires gasket(Sku:0500-1008)Sold separately.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 only. May require intake modification or a pod-style filter.**Not 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.
139QMB ENGINES: 1500rpmRoll 16×136.0 gr PRIMA ROLLER WEIGHT SET (16X13 MM, 6 PCS)Main Jet KitPRIMA KEIHN PB MAIN JETThis kit requires gasket(Sku:0500-1008)Sold separately.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 only. May require intake modification or a pod-style filter.**Not 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.
- Engine Code: 139QMB
- 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 139QMB engine?
A: This SKU is listed as compatible with 139QMB engine-code fitment. Always compare your original part and scooter details before ordering.
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 | 12 lbs |
|---|---|
| Dimensions | 36 × 12 × 12 in |
Unlock Your Potential: Stage 1 Performance Tuning Kit
Transform your Genuine 50cc 2-stroke with our Stage 1 Performance Kit. By combining a high-flow expansion chamber exhaust with precision-matched transmission and fueling components, this kit delivers a noticeable increase in acceleration, hill-climbing torque, and top-end speed.
What’s in the Box?
- Prima 50 Performance Pipe: A tuned expansion chamber that allows your engine to breathe, providing a deep, sporty exhaust note and increased horsepower.
- NCY 1500rpm Compression Spring: A stiffer "secondary" spring that keeps the CVT in a lower gear ratio longer for lightning-fast takeoffs and better back-shifting on inclines.
- Prima Roller Weight Set (6.0g): Precisely weighted 16x13mm rollers to optimize your transmission’s "shift point" for maximum power delivery.
- Prima Main Jet Kit: Essential Keihin-style jets to enrich your fuel mixture, ensuring your engine stays cool and lubricated with the increased airflow.
Comprehensive Fitment Guide
This kit is specifically engineered for Genuine Scooter Co. 50cc 2-Stroke engines, including:
| Model Series | Compatibility Note |
|---|---|
| Genuine Buddy 50 | All years (2-Stroke models only) |
| Genuine Roughhouse 50 | All years / Sport & Special Editions |
| Genuine Black Cat / Rattler 50 | Direct bolt-on performance upgrade |
Technical Specifications
- Performance Gain: Estimated 10-15% increase in top speed and acceleration.
- Jet Style: Keihin PB (Main Jet)
- Roller Size: 16x13mm
- Spring Tension: 1500 RPM (High-Compression)
Mechanic's Note: This kit is the "gold standard" for de-restricting a Buddy 50. Note: This kit requires an Exhaust Gasket (0500-1008), which is sold separately. For maximum results, we recommend checking your spark plug color after the first 10 miles to ensure your jetting is perfect.
SKU: PKBUD50-1
Bundle Discount: Save 10% compared to buying parts individually.
RACING NOTICE: This product is intended for closed-course competition only. It is not compliant with EPA or CARB regulations for use on public roads or lands.
Save 10% by purchasing this kit, as opposed to buying the parts individually. Voids your factory warranty--throw caution to the wind!
 Kit Includes:
