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WebshopVespa PX/T...TuningClutches &...Clutch Gear Cog 25 teeth,
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Clutch Gear Cog 25 teeth,

for primary DRT 62 teeth, DRT
for COSA 2 clutch for Vespa
125 VNA-TS/150 VBA-Super/180
-200 Rally/PX80-200/PE/Lusso
/Cosa/T5,
straight teeth, clutch: Ø
115mm

The gear cog attached to the clutch assembly drives the primary gear cog attached to the input shaft in the large frame VESPA motor. Through varying the size or number of teeth on this cog, you can change the primary gear ratio of your motor. Changing the clutch cog is the quickest and easiest way to change the overall gear ratio of your motor. The more teeth the clutch gear cog has, the higher the gearing.

 

The gear cogs for the COSA II clutch are available with 20, 21, 22 and 23 teeth. The cogs with 20 or 22 teeth fit into 125-150cc motors and the 21 or 23 toothed cogs into the 200cc motors without having to also replace the primary driven gear cog. If, on the other hand, the primary gear cog is also replaced, all clutch cogs can be used with both motor sizes. The primary driven gear cog in the 200cc motor with 65 teeth can be combined with 21 or 22 toothed cogs, along with the original item with 23 teeth. The most popular clutch gear conversion cog is the version with 22 teeth, so enabling an improved acceleration through the gears, without expensive tuning measures, especially between 3rd and 4th gears. For VESPA T5 motors equipped with the MALOSSI 172cc cylinder kit, a clutch gear cog with 21 or 22 teeth has proved suitable. If the primary driven gear with 65 teeth (originating from the 200cc motor) is used in a 125-150cc motor the clutch gear cog from the 200 can also be employed in the smaller motor.

 

DRT have also managed to close the gaps in the number of cog teeth available for the PIAGGIO COSA II clutch gears. DRT produces clutch gear cogs suitable for all sizes of primary driven gear. A noticeably quieter and durable drive train is the result. This also extends the overall life of your gearbox and therefore your motor and also improves the efficiency of the transmission, with more power reaching the rear wheel. The straight cut gear cog with 22 or 24 teeth are designed for use with the POLINI primary driven gear cog. The primary gear ratio of 2.67 resulting from the cog teeth ratio of 24 teeth on the clutch gear cog and 64 teeth on the primary driven gear is the tallest primary transmission ratio conversion available for the COSA II clutch apart from the Worb5 version naturally... The clutch gear cog with 23 teeth produced by DRT combines perfectly with the original PIAGGIO primary driven gears in 125-150cc motors with 67 toothed cogs and 68 toothed cogs respectively.

There are straight cut COSA II clutch cogs also by DRT available for the DRT primary drive cog with 62 teeth. With 23, 24 and 25 teeth many overall gear transmission ratios are possible in combination with the COSA II clutch.

 

Helpful hint: All VESPA large frame models since the VNA/VNB range up till 1994 can be fitted with the COSA II clutch. With these 125-150cc models the existing clutch cover must either be modified due to the larger size of the COSA II clutch conversion, or replaced with the clutch cover from the 200cc motor and a suitable pressure plate. For this reason they have also been included in the accompanying listings.

 

SIP-TIP: Do not forget to order a new clutch holding nut, safety washer, thrust plate and a pushrod. New clutch friction plates are also recommended when doing this job. With differing sizes of gear cogs on the input and output shafts even more experimentation with gear ratio is possible. Wider section tyres are also a popular way of raising the gearing of your motor.

 

SIP community user “FloMoBiMa” on Art.-Nr.28960700: “Harmonises ideally with the 177cc PINASCO cylinder.”


OEM Numbers (for the purpose of comparison)  ip Vdd COSA SIP z25.692/z62 (DRT)


Customers also searched for this article with:  Clutch Cog, gearcog, gear cogs, gearcogs


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icon scootermodels This product fits the following models
  LML
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
LML Star 125 2T/ DLX / Via Toscana / Deluxe 125 2T AC
LML Star 150 2T / DLX / Via Toscana / Star / Stella / Belladonna RV 150 2T AC
  VESPA
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
VESPA 125 (T1/125) (D) 125 VNA1-2 2T AC `57-`59 use COSA 2 clutch and 200cc clutch cover
VESPA 125 (T2/125) (D) 125 VNB1-6 2T AC `59-`65 use COSA 2 clutch and 200cc clutch cover
VESPA 125 GT / 125 Sprint 125 VNL1-2 2T AC `61-`73 use COSA 2 clutch and 200cc clutch cover
VESPA 125 GTR 125 VNL2T 2T AC `68-`78 use COSA 2 clutch and 200cc clutch cover
VESPA 125 S 125 VNS1-6 2T AC `59-`65 use COSA 2 clutch and 200cc clutch cover
VESPA 125 Super 125 VNC1T 2T AC `65-`69 use COSA 2 clutch and 200cc clutch cover
VESPA 125 TS 125 VNL3T 2T AC `75-`78 use COSA 2 clutch and 200cc clutch cover
VESPA 150 150 VBB1-2 2T AC `60-`67 use COSA 2 clutch and 200cc clutch cover
VESPA 150 150 VBA1T 2T AC `58-`60 use COSA 2 clutch and 200cc clutch cover
VESPA 150 (T4/150) (D) 150 VGLA-B 2T AC `59-`65 use COSA 2 clutch and 200cc clutch cover
VESPA 150 GL 150 VLA1T 2T AC `62-`64 use COSA 2 clutch and 200cc clutch cover
VESPA 150 Sprint 150 VLB1T 2T AC `65-`74 use COSA 2 clutch and 200cc clutch cover
VESPA 150 Sprint Veloce 150 VLB1T 2T AC `69-`79 use COSA 2 clutch and 200cc clutch cover
VESPA 150 Super 150 VBC1T 2T AC `65-`79 use COSA 2 clutch and 200cc clutch cover
VESPA 180 Rally 180 VSD1T 2T AC `68-`73 use COSA 2 clutch
VESPA 200 Rally 200 VSE1T 2T AC `72-`79 use COSA 2 clutch
VESPA COSA 1 150 VLR1T 2T AC `87-`90 use COSA 2 clutch
VESPA COSA 1 200 VSR1T 2T AC `88-`91 use COSA 2 clutch
VESPA COSA 1 125 VNR1T 2T AC `88-`91 use COSA 2 clutch
VESPA COSA 2 150 VLR2T 2T AC `91-
VESPA COSA 2 125 VNR2T 2T AC `91-
VESPA COSA 2 200 VSR1T 2T AC `90-`96
VESPA P125X 125 VNX1T 2T AC `77-`82 use COSA 2 clutch and 200cc clutch cover
VESPA P150 S 150 VBX1T 2T AC `78-`90 use COSA 2 clutch and 200cc clutch cover
VESPA P150X / PX150 E 150 VLX1T 2T AC `78-`85 use COSA 2 clutch and 200cc clutch cover
VESPA P200E / PX200 E 200 VSX1T 2T AC `77-`86 use COSA 2 clutch
VESPA P80 / P80 E (Frankreich) 80 V8A1T 2T AC `80-`84 use COSA 2 clutch and 200cc clutch cover
VESPA P80X/PX80 E 80 V8X1T 2T AC `81-`83 use COSA 2 clutch and 200cc clutch cover
VESPA PX 80 E Lusso/ EFL/ Arcobaleno / Elestart 80 V8X1T 2T AC `83-`90 use COSA 2 clutch and 200cc clutch cover
VESPA PX100 E 100 VIX1T 2T AC `83-`84 use COSA 2 clutch and 200cc clutch cover
VESPA PX125 2011/ 30 Jahre 125 ZAPM74100 2T AC `11-
VESPA PX125 CAT 125 ZAPM50100 2T AC `07-
VESPA PX125 E 125 VNX2T 2T AC `81-`83 use COSA 2 clutch and 200cc clutch cover
VESPA PX125 E `98 / Millenium 125 VNX1T 2T AC `98-`05
VESPA PX125 E Lusso/EFL/Arcobaleno / Elestart 125 VNX2T 2T AC `83-`97 from year 1995
VESPA PX125 E Lusso/EFL/Arcobaleno / Elestart 125 VNX2T 2T AC `83-`97 use COSA 2 clutch and 200cc clutch cover
VESPA PX150 2011 150 ZAPM74200 2T AC `11-
VESPA PX150 E `98 / Millenium 150 VLX1T 2T AC `98
VESPA PX150 E Lusso/EFL/Arcobaleno / Elestart 150 VLX1T 2T AC `83-`97 from year 1995
VESPA PX150 E Lusso/EFL/Arcobaleno / Elestart 150 VLX1T 2T AC `83-`97 use COSA 2 clutch and 200cc clutch cover
VESPA PX200 E `98 / Millenium 200 VSX1T 2T AC `98-
VESPA PX200 E Lusso/ EFL/ Arcobaleno / Elestart 200 VSX1T 2T AC `83-`97 from year 1995
VESPA PX200 E Lusso/ EFL/ Arcobaleno / Elestart 200 VSX1T 2T AC `83-`97 use COSA 2 clutch
VESPA T5 / Elestart 125 VNX5T 2T AC `85-`90 use COSA 2 clutch
VESPA T5 Classic 125 VNX5T 2T AC `92-`95 use COSA 2 clutch

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