Replacement spring set for the Jammer tuning clutch on your Puch moped / moped with ZA50 engine and Tomos A35, A55 models.
These clutch springs can also be used for Fantic models with Minarelli V1 engine.
The pink clutch springs have a wire diameter of 1.1 mm.
With a wire diameter of 1.1 mm, the pink clutch springs are the heaviest of the available springs and are designated as stage 1.
The springs supplied with the jammer clutch are relatively hard, which means that a high engagement speed is required; this variant reduces the speed accordingly.
| Spring design | Tension spring |
| Length spring hook | 8 mm, 14 mm |
| Ø wire | 1.1 mm |
| Manufacturer | GPO |
| Surface | varnished |
| Area of application | Tuning |
| Ø inside | 7.7 mm |
| Color | pink |
| Material | Spring steel |
| Total length | 34 mm |
| Ø outside | 9.9 mm |
| Puch | E50 ZA50 (air-cooled) ZA50 (fan-cooled) |
| Tomos | |
| Fantic |
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Jammer clutch springs medium racing clutch | Puch E50
Spring design: Tension spring · Ø wire: 1.6 mm · Length spring hook: 10.8 mm · Leg length: 9.6 mm · Leg length: 13.5 mm · Manufacturer: Jammer · Material: Spring steel · Area of application: Tuning · Color: green · Surface: varnished · Total length: 37 mm · Ø inside: 7.4 mm · Ø outside: 11 mm
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Jammer clutch 1st gear (aluminum carrier) | Tomos A35, A55
Manufacturer: Jammer · Material addition: Aluminum · Area of application: High End · Area of application: Performance · Area of application: Racing · Area of application: Tuning · Material: Steel · Number of jaws: 3 pcs · Recording type: Interlocking · Number of springs: 3 pcs · Tomos OEM number: 227849
CHF 179.90
Jammer clutch flange version | Minarelli V1
Manufacturer: Jammer · Area of application: Racing · Area of application: Tuning · Material: Composite materials · Material: Steel · Number of jaws: 3 pcs · Recording type: 2-edge · Number of springs: 6 pcs · Thickness: 20.3 mm · Ø outside: 82.5 mm
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Jammer clutch cone version | Minarelli V1
Manufacturer: Jammer · Area of application: Racing · Area of application: Tuning · Material: Composite materials · Material: Steel · Number of jaws: 3 pcs · Recording type: Cone mounting · Number of springs: 6 pcs · Thickness: 20.3 mm · Ø outside: 82.5 mm
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GPO clutch spring set Jammer clutch "Stage 2" blue
Spring design: Tension spring · Ø wire: 1.3 mm · Length spring hook: 8 mm · Length spring hook: 14 mm · Manufacturer: GPO · Surface: varnished · Color: blue · Ø inside: 7.3 mm · Material: Spring steel · Total length: 34 mm · Ø outside: 9.9 mm
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Jammer clutch 1st gear "GPO-Edition" | Puch ZA50
Manufacturer: Jammer · Recording type: Interlocking · Number of jaws: 3 pcs · Number of springs: 15 pcs · Thickness: 12.8 mm · Area of application: Tuning · Ø outside: 83.5 mm · Alternative version of the Puch OEM number: 321.1.12.620.2
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