The ‘x’ in SunTour Vx was widely understood as standing for ‘extra light’ (I do not know whether this was SunTour’s real intention). This was the SunTour V Luxe after it had been on a strenuous diet, the steel holder for the cable clamp bolt has been replaced by an aluminium channel and the knuckles are slimmer and neater.

Despite the weight loss, this was an extremely affordable, strong and reliable derailleur - I still see many of these in use on the roads today.

The plain Vx is the short arm version, and at 205g it was a viable racing gear (a Campagnolo Nuovo Record weighed 198g) - however pride and snobbery meant that the Vx was only widely used on training bikes.


  1. Brand: SunTour

  2. My category: SunTour - the V story

  3. Country: Japan

  4. Date of introduction: 1977

  5. Date of this example: 1980 (two letter date code is WI)

  6. Model no: 2200

  7. Weight: 205g

  8. Maximum cog: 26 teeth

  9. Total capacity: 24 teeth

  10. Pulley centre to centre: 47mm

  11. Index compatibility: friction

  12. Chain width: 3/32”

  13. Logic: top normal

  14. Pivots: two pivots, front sprung and rear unsprung

  15. Material: aluminium


SunTour Vx (2200)