Go Back  Bike Forums > Bike Forums > Classic & Vintage
Reload this Page >

Suntour Front derailleur for 50-44-24 crankset

Classic & Vintage This forum is to discuss the many aspects of classic and vintage bicycles, including musclebikes, lightweights, middleweights, hi-wheelers, bone-shakers, safety bikes and much more.

Suntour Front derailleur for 50-44-24 crankset

Old 10-06-22, 07:56 PM
Senior Member
Join Date: Jul 2020
Location: Humboldt County, CA
Posts: 835
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 409 Post(s)
Likes: 0
Liked 431 Times in 287 Posts
It looks like you're using a modern triple FD with a half-step + granny triple. This usually doesn't work, because the inner cage plate of the FD is stepped inward to help lift the chain up to the middle ring from the granny. With the small size difference between middle and outer ring, that stepped cage hits the middle ring.

The solution is to use a FD designed for a double crankset. The shift up from the granny will be slow, and won't work under load, but when was the last time you needed a granny-to-middle shift RIGHT NOW!!

ShannonM is offline  
Likes For ShannonM:
Old 10-06-22, 09:10 PM
Senior Member
79pmooney's Avatar
Join Date: Oct 2014
Location: Portland, OR
Posts: 12,979

Bikes: (2) ti TiCycles, 2007 w/ triple and 2011 fixed, 1979 Peter Mooney, ~1983 Trek 420 now fixed and ~1973 Raleigh Carlton Competition gravel grinder

Mentioned: 131 Post(s)
Tagged: 0 Thread(s)
Quoted: 4857 Post(s)
Liked 4,002 Times in 2,598 Posts
Originally Posted by nebelppa
Thanks, all! I was doing some more poking around and realized there are really no vintage derailleurs with a capacity over 40t, so I think I'm gonna go compact double for now (replacing the highest chainring with a guard) and looks like I might need to go to different component set (V-GT only has 36t capacity according to specs). Cheers.
I'm running an AR with a 52-42-24 without issue. (Well the chain may drag a little on the FD cage bolt at the bottom in the small-small. I don't sweat that at all. If it drags and there is a plastic bushing, I simply take the bushing out and replace it with a stack of small washers. Been doing that for decades. Chain's harder than the washers so it doesn't care.

If the capacity is close and you like the FD, go for it and look. I'll bet that beyond a little rubbing in your least often used combo, its just fine.
79pmooney is offline  
Likes For 79pmooney:
Old 10-07-22, 06:04 AM
Senior Member
Join Date: Oct 2010
Posts: 8,563
Mentioned: 69 Post(s)
Tagged: 0 Thread(s)
Quoted: 3261 Post(s)
Liked 2,576 Times in 1,533 Posts
Suntour X-1.
seypat is offline  
Related Topics
Thread Starter
Last Post
Classic & Vintage
05-07-19 08:37 AM
Classic & Vintage
12-09-18 04:20 PM
Classic & Vintage
04-04-17 09:51 AM
Classic & Vintage
03-18-14 05:20 AM
Classic & Vintage
10-29-10 11:53 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.