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Gear Cog 55 teeth, 1st gear,

DRT "3-gear" for Vespa 50/N/L
/R/Special V5A2/3/V5B1/2/90
/100/PK 50XL FL/HP/N/Rush
/PK100 S,
Ø 121,4 mm, h 12 mm, "tall 1st
gear"

DRT stands for the Denis Racing Team and is a guarantee for race proven gear box components, based on experiences collected in Rally Sport. The racers and mechanics on the Italian sprinting scene swear by the DRT products and these high end gearbox parts are also included in the racing scooters of the SIP-STOFFI racing team.

 

Well coordinated gear ratios helps your motor deliver its power more smoothly and constantly and can be decisive over a win or loss in a racing situation. It is almost an art, to be able to set your gearing up to remain within the power-band every time you change up to another gear. If you have ever been happily accelerating behind a truck on the motorway just to lose all of your power while attempting to overtake due to the extra wind resistance will appreciate the use of the shorter fourth gear cog.

 

The gear cogs are made of a tougher grade of steel and then hardened. This makes them especially suited to the more hard working environment of a performance orientated motor and also noticeably more durable. The cog teeth are straight cut, CNC machined and have had metal removed to lower the overall weight.

 

Helpful hint: If your motor has enough power to give you the impression you could still change up a gear while travelling at top speed, than you could probably do with a taller 4th gear. If the gap between 3rd and 4th gears seems a little too wide, than a shorter top gear will probably help.

 

Conclusion: These DRT gear cogs are essential for all serious racers and sprinters. Rally going scooterists have also learnt the benefits of top quality adjustable gear box ratios.

 

SIP-TIP: If you want to raise the ratio of your gear box start with the primary drive gears.  Never forget to order a new gear selector cruciform (at best the DRT item) and fresh gear box oil.  Last but not least the SIP gear box shaft assembly spacers help you find the ideal output shaft assembly end float for safe and enduring use of your motor.

 

Depending on your motor type there are the following gear cogs available:

DRT gear cog '3rd gear'

Suitable for VESPA 50/N/L/R/Special V5A2/3/V5B1/2/90/100/PK 50XL FL/HP/N/Rush/PK100 S

The tall 1st gear cog with 55 cog teeth is ideal in combination with high performance motors equipped with either the FALC/ QUATTRINI/ PARMAKIT cylinders. The short 3rd gear with 48 cog teeth make sure of a clean acceleration when changing up from 2nd. Both gear cogs in combination with the OE PIAGGIO 2nd gear can be used with primary drive gear cog ratios of either 24/72, 25/72 or 22/63 and a powerful tuning cylinder setup to achieve a continuous acceleration up through the whole of the gear box, exploiting even the highest engine revs for a higher top-end speed.


OEM Numbers (for the purpose of comparison)  ICs 222 (DRT)


Customers also searched for this article with:  gearcog, Gear wheel


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icon scootermodels This product fits the following models
  VESPA
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
VESPA 50 / N 50 V5A1T 2T AC `63-`71 -> 92876, 1. series
VESPA 50 / N 50 V5A1T 2T AC `63-`71 92877 ->
VESPA 50 L 50 V5A1T 2T AC `66-70
VESPA 50 R 50 V5A1T 2T AC `69-`83
VESPA 50 Special 50 V5A2T 2T AC '69-'72
VESPA 50 Special 50 V5B1T 2T AC '72-'75
VESPA 50 Special 50 V5B3T 2T AC '75-'83 (PR) 308896->
VESPA 50 Special 50 V5B3T 2T AC '75-'83 (USA) 308896->
VESPA 50 Special Elestart 50 V5B2T 2T AC `72-`75
VESPA 50 Special Elestart 50 V5A3T 2T AC '69-'72
VESPA 90 90 V9A1T 2T AC `63-`84 -> 25000
VESPA 90 90 V9A1T 2T AC `63-`84 25001 ->
VESPA 100 (UK) / 100 Sport (US) 100 V9B1T 2T AC `78-`90
VESPA PK 50 XL FL 50 V5N1T 2T AC `90-
VESPA PK 50 XL HP 50 V5N2T 2T AC `91-`91
VESPA PK 50 XL N NUOVA 50 V5X5T 2T AC `89-`90
VESPA PK 50 XL Rush / Elestart 50 V5X4T 2T AC `88-`90
VESPA PK100 S / Elestart 100 V9X1T 2T AC `82-`84

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