Description
Polini clutch spring sets for the original clutch.
Prepared engines give more power at high RPM and lose power at low RPM. If the clutch springs are not replaced with stiffer ones, the acceleration worsens.
Polini's stiffer spring set makes the clutch open later, which allows skipping the low power RPM range and improves the acceleration significantly.
It is also recommended to replace the springs when fitting a higher performance exhaust pipe! Choose the spring stiffness according to the engine preparation level
Colour / Stiffness / RPM
Black: 20% harder harder 5.500rpm
Green: 35% harder 6.000rpm
Yellow: 50% harder 6.500rpm
Additional Information
| SKU: | A-245.01 |
| Position: | No |
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Good for
| Make | Model |
|---|---|
| Make | Model |
| Yamaha | Aerox 50c.c. (a partir del 2013) |
| Italjet | Dragster 50c.c. LC |
| Italjet | Pista 2 50c.c. AC |
| Malaguti | Centro 50c.c. AC |
| Malaguti | Ciak 50c.c. AC |
| Malaguti | F10 CAT 50c.c. (a partir del '99) |
| Malaguti | F10 Jet Line 50c.c. AC (antes del '99) |
| Malaguti | F10 Wap 50c.c. AC (a partir del 2004) |
| Malaguti | F12 Phantom 50c.c. AC (aire) |
| Malaguti | F12 Phantom 50cc AC (a partir del 2004) |
| Malaguti | F12 Phantom 50c.c. LC (agua) |
| Malaguti | F12 Phantom 50c.c. LC (a partir del 2004) |
| Malaguti | F15 Firefox 50c.c. AC (aire) a partir del 2004) |
| Malaguti | F15 Firefox 50c.c. LC (agua) (a partir del 2004) |
| Malaguti | F15 Firefox 50c.c. LC |
| Malaguti | Yesterday 50c.c. AC |
| MBK | Booster 50c.c. AC (a partir del 2004) |
| MBK | Booster 50c.c. AC (92-99) |
| MBK | Booster Next 50c.c. AC (a partir del '99) |
| Keeway | RX8 50 |
| MBK | Booster Next 50c.c. AC (antes del '99) |
| MBK | Booster Rocket 50c.c. AC |
| MBK | Booster Spirit 50c.c. (AC) |
| MBK | Booster Track 50c.c. (AC) |
| MBK | Equalis 50c.c. AC |
| MBK | Evolis 50c.c. AC |
| MBK | Fizz 50c.c. LC |
| MBK | Flipper 50c.c. AC |
| MBK | Forte 50c.c. LC |
| MBK | Mach G 50c.c. AC |
| MBK | Mach G 50c.c. LC (antes del 2003) |
| MBK | Nitro 50c.c. LC (a partir del '99) |
| MBK | Nitro 50c.c. LC (antes del'99) |
| MBK | Nitro 50 CAT (a partir del 2003) |
| MBK | Nitro Naked 50c.c. LC |
| MBK | Ovetto 50c.c. AC |
| MBK | Sorriso 50c.c. AC (a partir del '96) |
| MBK | Stunt 50c.c. AC CAT (a partir del 2004) |
| MBK | Stunt 50c.c AC |
| MBK | Stunt Naked 50c.c. AC |
| Yamaha | Aerox 50c.c. (a partir del '99) |
| Yamaha | Aerox 50c.c. (antes del '99) |
| Yamaha | Aerox Naked 50c.c. LC CAT (a partir del 2003) |
| Yamaha | Axis 50 AC (aire) |
| Yamaha | BW's 50c.c. (AC) |
| Yamaha | BW's NG 50c.c. AC (a partir del '99) |
| Yamaha | BW's NG 50c.c. AC (antes del '99) |
| Yamaha | BW's Bump 50c.c. AC |
| Yamaha | Breeze 50c.c. (AC) |
| Yamaha | Jog 50c.c. AC |
| Yamaha | Jog R 50c.c. AC |
| Yamaha | Jog RR 50c.c. LC |
| Yamaha | Neo's 50c.c. AC |
| Yamaha | Slider 50c.c. AC CAT (a partir del 2004) |
| Yamaha | Slider 50c.c. AC (antes del 2004) |
| Yamaha | BW's Spy 50c.c. AC |
| Yamaha | Why 50c.c. AC |
| Yamaha | Zest YE 50c.c. AC |
| Yamaha | Zuma 50c.c. AC |
| Yamaha | Zuma II 50c.c. AC |
| Yamaha | Aerox 50c.c. LC CAT (a partir del' 2003) |
| Benelli | 491 50c.c. RR LC (> 2003) - Motor Morini |
| Benelli | 491 50c.c. RR Replica LC (> 2003) - Motor Morini |
| Malaguti | Crosser 50c.c. AC |
| Keeway | RY8 50 |
| Aprilia | Amico 50c.c. (91-92) |
| Aprilia | Amico 50c.c. AC (a partir del '93) |
| Aprilia | Amico GL 50c.c. (aire) |
| Aprilia | Amico Sport 50c.c.(aire) |
| Aprilia | Area 51 LC - 50c.c. |
| Aprilia | Gulliver 50c.c. AC |
| Aprilia | Gulliver 50c.c. LC |
| Aprilia | Rally 50c.c. LC |
| Aprilia | Rally 50c.c. AC |
| Aprilia | Scarabeo 50c.c. AC (a partir del '98) |
| Aprilia | Scarabeo 50c.c. AC (antes del '98) |
| Aprilia | Sonic 50c.c. AC |
| Aprilia | Sonic 50c.c. LC |
| Aprilia | SR 50c.c. (antes del '94) - Minarelli vertical |
| Aprilia | SR 50c.c. AC (desde 94 hasta 97) - Minarelli horiz |
| Aprilia | SR 50c.c. LC (desde 94 hasta 97) - Minarelli |
| Aprilia | SR 50 Netscaper - Minarelli horiz |
| Aprilia | SR 50 Racing (antes del '2000) - Minarelli horiz |
| Aprilia | SR 50 Stealth - Minarelli horizontal |
| Aprilia | SR 50c.c. WWW LC(desde '2000) - Minarelli horiz. |
| Aprilia | SR 50 WWW - Minarelli horizontal |
| Benelli | 491 AC (antes 2002) - Minarelli horiz. |
| Benelli | 491 50c.c. RR LC (< 2003) - Motor Minarelli |
| Benelli | 491 50c.c RR Replica LC (< 2003) - Motor Minarelli |
| Benelli | 491 LC (antes del '2002) - Minarelli horiz. |
| Benelli | 491 50c.c. ST LC (antes 2003) - Motor Minarelli |
| Benelli | K2 50c.c. AC (aire) - Minarelli horiz. |
| Benelli | K2 50c.c. LC (agua) - Minarelli horiz. |
| Benelli | Naked 50c.c. AC (desde 2003) - Motor Minarelli |
| Benelli | Pepe 50c.c. AC (antes del 2003) - Minarelli horiz. |
| Beta | ARK 50c.c. AC (Minarelli horizontal) |
| Beta | ARK 50c.c. LC (Minarelli horizontal) |
| Beta | Chrono 50c.c. AC - Minarelli horiz. |
| Beta | Eikon 50c.c. LC - Minarelli horizontal |
| Beta | Quadra 50c.c. AC - Minarelli horizontal |
| Beta | Tempo 50c.c. AC |
| CPI | GTR 50c.c. LC - Minarelli horiz. |
| CPI | Hussar 50c.c. AC(> 2003 / Bulón 12mm) - Min.horiz |
| CPI | Hussar 50c.c. AC (antes del 03) - Minarelli horiz. |
| CPI | Oliver 50c.c. AC (> 2003/Bulón 12mm) - Min.horiz |
| CPI | Oliver 50c.c. AC (< 2003 / Bulón 10mm) - Min.horiz |
| CPI | Popcorn 50c.c. AC (> 2003/Bulón 12mm) - Min. horiz |
| CPI | Popcorn 50c.c. AC (< 2003/Bulón 10mm) - Min. horiz |
| Italjet | Pista 50c.c. AC |
| Kreidler | Florett 50c.c. AC |
| Kreidler | Flory 50c.c. AC |
| Adly | Thunderbike 50 AC |
| Keeway | Flash 50 |
| Keeway | F-ACT 50 |
| Keeway | Focus 50 |
| Keeway | Hurricane 50 |
| Keeway | Matrix 50 |
| PGO | T-REX 50c.c. AC |
| PGO | Galaxy 50c.c. AC |
| PGO | Big Max 50c.c. AC |
| PGO | Star 50c.c. AC |
| PGO | Comet 50c.c. AC |
| Italjet | Formula 50c.c. LC (agua) |
| MBK | Mach G 50c.c. CAT LC (a partir del 2003) |
| MBK | Nitro 50c.c. LC CAT (a partir del 2003) |