RDR Chrome Silicon Steel Alloy Valve Springs
RDR Chrome Silicon Steel Alloy Valve Springs
$36.17
Out of stock
*Note: Free shipping to U.S. mainland (excludes AK, HI, and territories)
Orders placed by 1pm EST on weekdays ship the same day.
Product Details
Description
RDR Chrome Silicon Steel Alloy Valve Springs
Replacement Part Details
Use this part when the original component is worn, damaged, missing, or no longer working correctly. Many scooter parts can look similar but use different sizes, plugs, brackets, thread patterns, or mounting styles, so careful comparison before purchase is recommended.
Additional information
| Weight | 0.3 lbs |
|---|---|
| Dimensions | 5 × 5 × 2 in |
| Condition | New |
|---|
RDR's Chrome Silicon Steel Alloy Valve Springs for 139QMB 50cc 4-stroke and 125/150cc GY6 and GY6B 4-stroke engines are rated for 12,000 RPM. The lighter your valve train components, the quicker the engine revs.
- Includes 2 Inner and 2 Outer Valve Springs
- Outer Spring Weight: 14g
- Inner Spring Weight: 7g
- Coil Diameter Outer Spring: 2.54mm
- Coil Diameter Inner Spring: 1.95mm
- Outer Spring Height: 37.3mm
- Inner Spring Height: 27.3mm
Compatibility: 139QMB 50cc 4-stroke and 125/150cc GY6 and GY6B 4-stroke engines
139QMB-based 50cc / 80cc engines with the following engine codes:
| 139QMA | 139QMB | 1P39QMB | 1P39QMA-2 |
| YN139QMB | JJ1P39QMB | 139FMA-2 | BD1P39QMB |
| BN139QMB | 147QMD | Other QMA models | Other QMB models |
157QMJ-based 125cc / 150cc / 169cc engines with the following engine codes:
| 157QMJ | 161QMK | 152QMI | 1P61QMK |
| YN1P57QMJ | 1P52FMI | 154FMI | JJ157QMJ |
| 1P57QMJ | BN157QMJ | BN161QMK-A | Other QMJ, QMK, and QMI models |
Don't see your engine listed? If the engine code includes "QM" or "FM" and your bike is a 4T, this product is compatible with your vehicle.
About RDR: RDR is a Taiwanese manufacturer who specializes in performance and styling parts for scooters and motorcycles.
