Gear teeth compatible with your Piaggio Ciao, Si, Bravo, and Boxer mopeds equipped with a Variomatic transmission.
This gear ratio is longer than the original ratios installed by Piaggio in Switzerland.
The longer gear ratio provides higher top speed but less low-end torque.
Note that the ratio changes further depending on the rim size (17" spoked wheels provide more speed / 16" cast wheels provide more low-end torque).
Gear ratio: 10.73 / 1
Tooth profile: helical
To further optimize the gear ratio, different converter pulleys can be installed.
You can find converter pulleys and alternative gear sets in the accessories section.
Brand-name product from the manufacturer EVOK.
Manufacturer: EVOK · Piaggio OEM number: 176447 · Material: Steel · Surface: Hardened · Number of teeth: 10 pcs · Translation: 9.23 / 1, 9.49 / 1, 10.44 / 1, 10.63 / 1, 10.73 / 1, 11.92 / 1, 12.24 / 1, 13.05 / 1, 14.82 / 1, 17.63 / 1 · Ø shaft: 13 mm · Total length: 135 mm · Toothing type: helical toothed · Thread type: M8x1.25 (standard thread)
Manufacturer: EVOK · Material: Steel · Surface: Hardened · Number of teeth: 23 pcs · Translation: 9.23 / 1, 9.49 / 1, 10.44 / 1, 10.63 / 1, 10.73 / 1, 11.92 / 1, 12.24 / 1, 13.05 / 1, 14.82 / 1 · Toothing type: helical toothed · Gearbox type: Vario, Mono · Ø outside: 32 mm
Manufacturer: EVOK · Material: Steel · Surface: Hardened · Number of teeth: 29 pcs, 10 pcs · Translation: 9.49 / 1, 10.73 / 1, 13.05 / 1 · Toothing type: straight toothed, helical toothed · Gearbox type: Vario, Mono · Ø outside: 39 mm, 23 mm
Manufacturer: EVOK · Piaggio OEM number: 178697 · Material: Steel · Surface: Hardened · Number of teeth: 37 pcs · Toothing type: straight toothed · Gearbox type: Vario, Mono · Ø inside: 23.1 mm · Ø outside: 69.4 mm · Thickness: 10 mm · Translation: 8.41 / 1, 9.17 / 1, 10.73 / 1, 11.92 / 1
| Piaggio | Ciao - P , SC , PX , C24 Si Bravo / Super Bravo Boxer Grillo Gilera CBA Gilera Citta |
Accessories & related products
CIF transmission 11:1 Vario | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: CIF · Material: Steel · Surface: Hardened · Toothing type: helical toothed · Toothing type: straight toothed · Translation: 10.73 / 1 · Gearbox type: Vario · Area of application: Racing · Area of application: Tuning
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Pinasco gearbox 9.2-12.3 Vario | Piaggio Ciao, SI, Bravo, Boxer, Grillo
Manufacturer: Pinasco · Toothing type: helical toothed · Toothing type: straight toothed · Translation: 7.40 / 1 · Translation: 9.23 / 1 · Translation: 9.49 / 1 · Translation: 10.44 / 1 · Translation: 11.92 / 1 · Translation: 12.27 / 1 · Gearbox type: Vario · Area of application: Tuning
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swiing® ingenious pulleys Ø 96 mm | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: swiing® ingenious parts · Material: Steel · Material: special bearing bronze · Ø Outer pulley: 96 mm · Surface: gas nitrided · Gearbox type: Vario · Alternative version of the Piaggio OEM number: 103382 · Alternative version of the Piaggio OEM number: 103823 · Alternative version of the Piaggio OEM number: 220923 · Alternative version of the Piaggio OEM number: 220924
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swiing® revival spacer set VG4 & VG5 Vario transmission | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: swiing® revival parts · Material: Steel · Surface: Hardened · Surface: blank / oiled · Piaggio OEM number: 131512 · Piaggio OEM number: 131513 · Piaggio OEM number: 131514 · Piaggio OEM number: 175747 · Piaggio OEM number: 175751
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Koyo needle bearing set Vario transmission | Piaggio Ciao, SI, Bravo, Boxer
Bearing type: Needle box · Bearing type: Needle sleeve · Bearing cage: Sheet steel cage · Stock number: BK0912 · Stock number: BK1512 · Stock number: HK1312 · Stock number: HK2012 · Manufacturer: Koyo · Manufacturer: Piaggio · Piaggio OEM number: 103613 · Piaggio OEM number: 103614 · Piaggio OEM number: 103689 · Piaggio OEM number: 131509
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Evok 23-Tooth Sprocket for Mono/Vario Transmission | Piaggio Ciao, SI, Bravo, Boxer
Manufacturer: EVOK · Material: Steel · Surface: Hardened · Toothing type: helical toothed · Translation: 9.23 / 1 · Translation: 9.49 / 1 · Translation: 10.44 / 1 · Translation: 10.63 / 1 · Translation: 10.73 / 1 · Translation: 11.92 / 1 · Translation: 12.24 / 1 · Translation: 13.05 / 1 · Translation: 14.82 / 1 · Number of teeth: 23 pcs · Ø outside: 32 mm · Gearbox type: Mono · Gearbox type: Vario
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Evok Drive Shaft, 10 Teeth, Vario Transmission | Piaggio Ciao, SI, Bravo, Boxer
Thread type: M8x1.25 (standard thread) · Manufacturer: EVOK · Material: Steel · Surface: Hardened · Toothing type: helical toothed · Translation: 9.23 / 1 · Translation: 9.49 / 1 · Number of teeth: 10 pcs · Translation: 10.44 / 1 · Translation: 10.63 / 1 · Translation: 10.73 / 1 · Translation: 11.92 / 1 · Translation: 12.24 / 1 · Translation: 13.05 / 1 · Translation: 14.82 / 1 · Translation: 17.63 / 1 · Total length: 135 mm · Ø shaft: 13 mm · Piaggio OEM number: 176447
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