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 |
| Color | pink |
| Ø outside | 9.9 mm |
| Ø inside | 7.7 mm |
| Total length | 34 mm |
| Puch | E50 ZA50 (air-cooled) ZA50 (fan-cooled) |
| Tomos | |
| Fantic |
Ratings
Accessories & related products
Hot 
Jammer racing clutch special 65 ccm and more | Puch E50
Manufacturer: Jammer · Material: Steel · Material addition: Steel · Number of springs: 3 pcs · Recording type: Cone mounting · Number of jaws: 3 pcs · Thickness: 19 mm · Ø outside: 92.5 mm · Area of application: High End · Area of application: MX · Area of application: Racing · Area of application: Tuning
CHF 189.90
Not in stock
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 · Manufacturer: Jammer · Material: Spring steel · Surface: varnished · Color: green · Total length: 37 mm · Ø inside: 7.4 mm · Ø outside: 11 mm · Area of application: Tuning
CHF 13.90
Jammer clutch 1st gear | Tomos A35, A55
Manufacturer: Jammer · Area of application: High End · Area of application: Performance · Area of application: Racing · Material: Steel · Area of application: Tuning · Material addition: Aluminum · Number of springs: 3 pcs · Recording type: Interlocking · Number of jaws: 3 pcs · Tomos OEM number: 227849
CHF 189.90
Not in stock
Jammer clutch flange version | Minarelli V1
Ø outside: 82.5 mm · Manufacturer: Jammer · Material: Composite materials · Area of application: Racing · Material: Steel · Area of application: Tuning · Number of springs: 6 pcs · Recording type: 2-edge · Number of jaws: 3 pcs · Thickness: 20.3 mm
CHF 199.90
Jammer clutch cone version | Minarelli V1
Ø outside: 82.5 mm · Manufacturer: Jammer · Material: Composite materials · Area of application: Racing · Material: Steel · Area of application: Tuning · Number of springs: 6 pcs · Recording type: Cone mounting · Number of jaws: 3 pcs · Thickness: 20.3 mm
CHF 199.90
Not in stock
GPO clutch spring set Jammer clutch "Stage 2" blue
Spring design: Tension spring · Ø inside: 7.3 mm · Length spring hook: 8 mm · Length spring hook: 14 mm · Ø outside: 9.9 mm · Ø wire: 1.3 mm · Manufacturer: GPO · Material: Spring steel · Color: blue · Surface: varnished · Total length: 34 mm
CHF 11.90
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
CHF 189.90
Explore categories from Clutch
Moped fans also bought
Hot
KMC drive chain 415H (reinforced) 128L
Chain pitch: 1/2" x 3/16" · Chain type: 415H · Ø Pin: 3.94 mm · Manufacturer: KMC · Color: gray · Material: Steel · Surface: blank / oiled · Number of chain links: 128 pcs · Rolling circumference: 1626 mm · Chain lock type: Spring lock · Ø bore: 4 mm
CHF 12.50
Rectangular rear light (ULO replica) Budget
Color: black · Test mark: none · Color: red · Material: Plastic · Bulb holder: BA9s · Width: 65 mm · Ø Receptacle: 3.5 mm · Battery operated: No · Depth: 55 mm · Brake light: No · Reflectors: Yes · Mounting type: Nuts & bolts · Number of fixing points: 1 pcs · Puch OEM number: 321.1.55.100.0 · Pony OEM number: P777
CHF 9.50
swiing® revival upright spring blue galvanized | Puch
Spring design: Tension spring · Length spring hook: 19 mm · Length spring hook: 53 mm · Ø wire: 2.5 mm · Manufacturer: swiing® revival parts · Material: Spring steel · Surface: galvanized (blue) · Total length: 122 mm · Ø inside: 9 mm · Ø outside: 14 mm
CHF 2.70
Hot
Gas cable Ø 1.25 mm x 220 cm (cylindrical nipple) Bing
Ø nipple: 3 mm · Manufacturer: Made in Germany · Area of application: Standard · Material: Steel · Surface: galvanized (blue) · Ø Stranded wire: 1.25 mm · Nipple shape: Cylinder · Cable length: 2200 mm · Nipple length: 5 mm · Number of components: 1 pcs
CHF 2.40
Polini main jet (74 - 115 of your choice) CP / Keihin / PWK carburetor
Drive: External hexagon · 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 · Nozzle type: Main nozzle · Thread length: 3 mm · Width across flats: 6 mm · Nozzle thread: M5x0.8 (standard thread) · 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
CHF 4.90
GPO clutch spring set Jammer clutch "Stage 2" blue
Spring design: Tension spring · Ø inside: 7.3 mm · Length spring hook: 8 mm · Length spring hook: 14 mm · Ø outside: 9.9 mm · Ø wire: 1.3 mm · Manufacturer: GPO · Material: Spring steel · Color: blue · Surface: varnished · Total length: 34 mm
CHF 11.90
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
CHF 189.90
Attention: new opening hours from 16.02.2026 & new evening sale on Thursday 17:30-20:00
