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

New: Take part in the September Giveaway for 29" Giordano® Intrepid Mountain Bike valued at $659


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
Colnago restoration
Today 01:41 PM
"Multi-class ebikes"
Today 12:30 PM
Help me choose my bike(Dilemma)
Today 08:39 AM
E-Bike Batteries Keep Exploding. What’s ...
Yesterday 06:37 PM
Shimano Recall
Yesterday 03:41 PM
SHIMANO Reamed by US Authorities for sel...
Yesterday 08:35 AM
sram xdr cassette installation
Yesterday 06:27 AM
China has thousands of bikes left to go ...
Yesterday 06:23 AM
NEVER BUY FROM ECOTRIC
09-30-2023 10:30 PM
Wildlife encounters while cycling
09-30-2023 02:50 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. ichitan
56 posts
no avatar 2. GirishH
20 posts
no avatar 3. Painkiller
16 posts
no avatar 4. ReapThaWhirlwind
13 posts
no avatar 5. enkei
11 posts