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 |
| Area of application | Tuning |
| Material | Spring steel |
| Surface | varnished |
| Ø inside | 7.7 mm |
| Ø outside | 9.9 mm |
| Color | pink |
| Total length | 34 mm |
| Puch | E50 ZA50 (air-cooled) ZA50 (fan-cooled) |
| Tomos | |
| Fantic |
Accessories & related products
Jammer clutch springs medium racing clutch | Puch E50
Spring design: Tension spring · Length spring hook: 10.8 mm · Leg length: 9.6 mm · Leg length: 13.5 mm · Ø wire: 1.6 mm · Ø inside: 7.4 mm · Manufacturer: Jammer · Ø outside: 11 mm · Total length: 37 mm · Color: green · Material: Spring steel · Surface: varnished · Area of application: Tuning
16,20 EUR
Jammer clutch 1st gear (aluminum carrier) | Tomos A35, A55
Manufacturer: Jammer · Material: Aramid (colloquially known as Kevlar) · Material: Steel · Recording type: Interlocking · Number of jaws: 3 pcs · Number of springs: 3 pcs · Ø outside: 84.75 mm · Area of application: High End · Area of application: Performance · Area of application: Racing · Area of application: Tuning · Tomos OEM number: 227849
209,90 EUR
Jammer clutch flange version | Minarelli V1
Manufacturer: Jammer · Material: Composite materials · Material: Steel · Recording type: 2-edge · Number of jaws: 3 pcs · Number of springs: 6 pcs · Ø outside: 82.5 mm · Thickness: 20.3 mm · Area of application: Racing · Area of application: Tuning
233,30 EUR
Jammer clutch cone version | Minarelli V1
Manufacturer: Jammer · Material: Composite materials · Material: Steel · Recording type: Cone mounting · Number of jaws: 3 pcs · Number of springs: 6 pcs · Ø outside: 82.5 mm · Thickness: 20.3 mm · Area of application: Racing · Area of application: Tuning
233,30 EUR
Not in stock
GPO clutch spring set Jammer clutch "Stage 2" blue
Spring design: Tension spring · Length spring hook: 8 mm · Length spring hook: 14 mm · Ø wire: 1.3 mm · Manufacturer: GPO · Total length: 34 mm · Color: blue · Material: Spring steel · Surface: varnished · Ø inside: 7.3 mm · Ø outside: 9.9 mm
13,90 EUR
Hot 
Jammer clutch 1st gear "GPO-Edition" | Puch ZA50
Manufacturer: Jammer · Recording type: Interlocking · Number of jaws: 3 pcs · Number of springs: 15 pcs · Ø outside: 83.5 mm · Thickness: 12.8 mm · Area of application: Tuning · Alternative version of the Puch OEM number: 321.1.12.620.2
221,60 EUR
Explore categories from Clutch
Moped fans also bought
Hot
KMC drive chain 415H (reinforced) 128L
Manufacturer: KMC · Material: Steel · Surface: blank / oiled · Chain type: 415H · Number of chain links: 128 pcs · Chain pitch: 1/2" x 3/16" · Chain lock type: Spring lock · Color: gray · Rolling circumference: 1626 mm · Ø bore: 4 mm · Ø Pin: 3.94 mm
14,60 EUR
swiing® revival gearbox cover gasket ZA50 engine | Puch Maxi S -2A, X30 NG - 2AH
Number of components: 1 pcs · Manufacturer: swiing® revival parts · Material: Sealing paper · Width: 125 mm · Thickness: 0.3 mm · Color: sand-colored · Number of fixing points: 6 pcs · Total length: 175 mm · Puch OEM number: 321.1.10.649.1
3,95 EUR
Polini main jet (74 - 115 of your choice) CP / Keihin / PWK carburetor
Manufacturer: Polini · Material: Brass · Component group Carburetor: Spraying · Total length: 16.5 mm · Carburetor type: CP · Carburetor type: CP Evolution · Carburetor type: Keihin · Carburetor type: PWK · Carburetor type: RT-PWK · Drive: External hexagon · Nozzle type: Main nozzle · Thread length: 3 mm · Nozzle thread: M5x0.8 (standard thread) · Width across flats: 6 mm · Nozzle size: 74 · Nozzle size: 76 · Nozzle size: 78 · Nozzle size: 80 · Nozzle size: 82 · Nozzle size: 85 · Nozzle size: 88 · Nozzle size: 90 · Nozzle size: 92 · Nozzle size: 95 · Nozzle size: 98 · Nozzle size: 100 · Nozzle size: 102 · Nozzle size: 105 · Nozzle size: 108 · Nozzle size: 110 · Nozzle size: 112 · Nozzle size: 115
5,70 EUR
GPO clutch spring set Jammer clutch "Stage 2" blue
Spring design: Tension spring · Length spring hook: 8 mm · Length spring hook: 14 mm · Ø wire: 1.3 mm · Manufacturer: GPO · Total length: 34 mm · Color: blue · Material: Spring steel · Surface: varnished · Ø inside: 7.3 mm · Ø outside: 9.9 mm
13,90 EUR
Hot
Jammer clutch 1st gear "GPO-Edition" | Puch ZA50
Manufacturer: Jammer · Recording type: Interlocking · Number of jaws: 3 pcs · Number of springs: 15 pcs · Ø outside: 83.5 mm · Thickness: 12.8 mm · Area of application: Tuning · Alternative version of the Puch OEM number: 321.1.12.620.2
221,60 EUR
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
