NCY
NCY Performance Valve Spring Set - Genuine & GY6 125-170cc
Description
Keep your valve train under control when the revs climb with this NCY Performance Valve Spring Set for Genuine Buddy 125, 150 and 170i scooters and matching two-valve GY6 cylinder heads. These electroplated-steel springs provide tighter valve control than stock springs at higher RPM, helping reduce valve float and sharpen throttle response in your performance build.
Key Features
- High-RPM valve control: Helps reduce valve float compared with stock springs
- Four-spring set: Includes two inner and two outer springs, one inner/outer pair per valve
- Electroplated steel: Durable steel construction with an iridescent plated finish
- Two-valve application: For matching Genuine Buddy and GY6 QMJ/QMI/QMK cylinder heads
- Taiwan-made NCY quality: Made in Taiwan with ISO 9001-certified manufacturing
Technical Specifications
- Brand: NCY
- Part number: 1100-1284
- Part type: Performance valve spring set
- Material: Electroplated steel
- Country of origin: Taiwan
- Contents: Two inner springs and two outer springs
| Measurement | Inner spring | Outer spring |
|---|---|---|
| Inner diameter | 12.25 mm | 17.20 mm |
| Length | 32.5 mm | 35.6 mm |
| Width | 16.09 mm | 22.5 mm |
| Wire thickness | 1.96 mm | 2.9 mm |
Compatibility
| Application | Cylinder-head requirement |
|---|---|
| Genuine Buddy 125, Buddy 150, Buddy 170i | Matching two-valve head and spring arrangement |
| SYM Fiddle 125 | Matching two-valve head, spring seats and retainers |
| GY6 125cc / 150cc / 169cc QMJ, QMI and QMK applications | Matching two-valve cylinder head; compare spring dimensions, seats and retainers |
| 157QMJ, 161QMK, 152QMI, 1P61QMK, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ, BN161QMK-A and related QMJ/QMK/QMI variants | Matching two-valve spring configuration |
Applications include compatible GY6-powered scooters from Wolf, Tao Tao, Jonway, ZNEN, Bintelli, SSR and other makes. Match the cylinder head, spring seats and retainers before installation. Check installed height, coil-bind clearance and camshaft compatibility when assembling a modified valve train.
Performance upgrades are not covered under warranty.
This product is intended for off-road use only. This product is not intended for use on public roads or land.
Product Diagrams
Features
Specifications
Brand: NCY; Part number: 1100-1284; Type: Performance valve spring set; Material: Electroplated steel; Country of origin: Taiwan; Contents: Two inner and two outer springs; Inner spring ID: 12.25 mm; Inner spring length: 32.5 mm; Inner spring width: 16.09 mm; Inner spring wire thickness: 1.96 mm; Outer spring ID: 17.20 mm; Outer spring length: 35.6 mm; Outer spring width: 22.5 mm; Outer spring wire thickness: 2.9 mm; Cylinder-head type: Two-valve
Model Fitments
Genuine Buddy 125, Buddy 150, Buddy 170i; SYM Fiddle 125; Matching two-valve GY6 125cc / 150cc / 169cc QMJ/QMI/QMK heads; Engine codes: 157QMJ, 161QMK, 152QMI, 1P61QMK, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ, BN161QMK-A and related variants; Existing named scooter applications require matching spring dimensions, seats and retainers; Check installed height, coil-bind clearance and camshaft compatibility
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Same day shipping for orders placed before 2PM (CST) M-F
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30-day return period on eligible items
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Flat-rate shipping for orders shipped to the 48 Contiguous United States.
