Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.


Suntour VX Derailleurs
#1
Need to replace my worn top jockey wheel on my circa 1984 Suntour VX. I've seen the on video on this web site but there isn't a simple screw to release the jockey wheel, the only screw runs through the tension spring. I can't see how to remove the jockey wheel on the Suntour unit without disturbing the spring. Any advise would be greatly appreciated.
  Reply
#2
Does it look like this: http://www.velobase.com/ViewComponent.aspx?ID=FC9AB947-7DA8-4836-8A27-4E2648EFFB19&Enum=108&AbsPos=9?

It does appear that the jockey wheel is mounted on the cage spring pivot, so it looks like you can't remove it without dismantling the spring mechanism.

It looks familiar, I think I might have had something similar on a road bike a few years back, it definitely had Suntour mechs and I remember lusting after much dearer Campangnolo components. I had the bike in question, my first proper bike, for a good few years and rode the wheels of it, so I'm sure I must have dismantled the rear mech at some point, but unfortunately I can't remember the details and how tricky it was to get back together.
  Reply
#3
(07-28-2010, 08:49 AM)xerxes Wrote:  Does it look like this: http://www.velobase.com/ViewComponent.aspx?ID=FC9AB947-7DA8-4836-8A27-4E2648EFFB19&Enum=108&AbsPos=9?

It does appear that the jockey wheel is mounted on the cage spring pivot, so it looks like you can't remove it without dismantling the spring mechanism.

It looks familiar, I think I might have had something similar on a road bike a few years back, it definitely had Suntour mechs and I remember lusting after much dearer Campangnolo components. I had the bike in question, my first proper bike, for a good few years and rode the wheels of it, so I'm sure I must have dismantled the rear mech at some point, but unfortunately I can't remember the details and how tricky it was to get back together.

Yes the picture is exactly like mine but with nice unworn jockey wheels!
Looks like I might need to invest in some 21st century deraillieur equipment
  Reply
#4
Quote:Looks like I might need to invest in some 21st century deraillieur equipment

If you're prepared to by a new mech, why not have a go at disassembling and reassembling the one you have first, if you can't get it back together you will not have lost anything.

This exploded diagram of a similar Suntour Cyclone might help: http://www.yellowjersey.org/cyclone.html

However, I'm not sure where you'll find replacement jockey wheels, some of the Shimano ones are pretty cheap and may fit, but it's a bit of a gamble: http://www.chainreactioncycles.com/Models.aspx?ModelID=28108
  Reply
#5
(07-28-2010, 12:34 PM)xerxes Wrote:  
Quote:Looks like I might need to invest in some 21st century deraillieur equipment

If you're prepared to by a new mech, why not have a go at disassembling and reassembling the one you have first, if you can't get it back together you will not have lost anything.

This exploded diagram of a similar Suntour Cyclone might help: http://www.yellowjersey.org/cyclone.html

However, I'm not sure where you'll find replacement jockey wheels, some of the Shimano ones are pretty cheap and may fit, but it's a bit of a gamble: http://www.chainreactioncycles.com/Models.aspx?ModelID=28108

I think the problem is removing the locking ring so that the spring isn't disturbed. I'll have a go thanks for your help.
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
braking by reversing the pedals
Today 10:15 AM
Thoughts on tariff effects on the cyclin...
Today 09:33 AM
Post-Ride Nutrition
Yesterday 02:06 AM
🚴‍♂️ Saddle Up for the Belgian Waffle Ri...
Yesterday 02:03 AM
Pre Ride Food Intake
Yesterday 12:14 AM
SAVA Explorer 6061?
04-02-2025 03:31 PM
Zwift v Spin v Wahoo
04-01-2025 05:59 PM
Have you Ever Tried an Electric Bike?
04-01-2025 05:07 PM
Good Morning from SW Ohio
04-01-2025 07:32 AM
(So California) PV Dr to be closed to bi...
03-31-2025 09:14 PM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. GirishH
22 posts
no avatar 2. Flowrider
18 posts
no avatar 3. meamoantonio
12 posts
no avatar 4. Jake1
11 posts
no avatar 5. SPINMAN
8 posts