Wide-range Suntour rear derailleur
08-01-08 | 07:26 AM
#1
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Joined: Aug 2006
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From: Yardley PA
Wide-range Suntour rear derailleur
Does anyone know if any of the higher quality Suntour rear derailleurs can handle a 41t chain wrap?
I'm building a lightweight touring bike based on a 74 Raleigh international frame, with 48-36-24 chainrings and a 13-30 freewheel (friction). I would like to keep it classic, but will go to a modern mtn derailleur if (absolutely) necessary. The cyclone GT seems to have a 35t (maybe 36t) capacity; does anyone know if the suntour xc sport could handle 41t? Does anyone have any experience with the triple jockey wheel models made by Suntour? Also, I've read about the huret eco duopar, but a) they are very hard to find, and b) they tend to be pretty pricey when you do find one. Any help would be greatly appreciated.
I'm building a lightweight touring bike based on a 74 Raleigh international frame, with 48-36-24 chainrings and a 13-30 freewheel (friction). I would like to keep it classic, but will go to a modern mtn derailleur if (absolutely) necessary. The cyclone GT seems to have a 35t (maybe 36t) capacity; does anyone know if the suntour xc sport could handle 41t? Does anyone have any experience with the triple jockey wheel models made by Suntour? Also, I've read about the huret eco duopar, but a) they are very hard to find, and b) they tend to be pretty pricey when you do find one. Any help would be greatly appreciated.
08-01-08 | 07:29 AM
#2
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Joined: Mar 2002
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From: Helsinki, Finland
Cheers and welcome to Bike Forums.
I'm moving this post from Touring to Bike Mechanics, where it's more likely to generate helpful replies.
--J, a Forum Mod
I'm moving this post from Touring to Bike Mechanics, where it's more likely to generate helpful replies.
--J, a Forum Mod
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08-01-08 | 09:50 AM
#3
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Joined: Jul 2007
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Damn! I've got a 74 International too! And I'm doing a similar thing. Mine's getting TA 26/36/47 in front, and Suntour New Winner 12-38 in back (yes 38-because I can), using a Shimano Deore XT Super Plate RD.
Any Suntour RD with XC as part of the name should handle your gearing just fine. Cyclone GT may let the chain hang slack in the small/small, but you weren't going to use those gears anyway.
Any Suntour RD with XC as part of the name should handle your gearing just fine. Cyclone GT may let the chain hang slack in the small/small, but you weren't going to use those gears anyway.
08-01-08 | 02:19 PM
#4
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Joined: Aug 2006
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From: Yardley PA
Thanks for the info, Melville.
I'd like to see a picture when you get her finished. I have a suntour new winner in back as well; should have gone with the TA's in front, but decided to go the less expensive route. If I had the spare change, I would have gone with the red Hegoa outer ring (to match the paint job), but that would have required new cranks (already had a Sugino AT 74-110 I polished up) as well as the new rings. Guess I'll ride it a lot, wear out the new chainrings, and justify the new TA's, oh, next year (right)
. I'll keep my eye open for a XC sport/pro, etc.
I'd like to see a picture when you get her finished. I have a suntour new winner in back as well; should have gone with the TA's in front, but decided to go the less expensive route. If I had the spare change, I would have gone with the red Hegoa outer ring (to match the paint job), but that would have required new cranks (already had a Sugino AT 74-110 I polished up) as well as the new rings. Guess I'll ride it a lot, wear out the new chainrings, and justify the new TA's, oh, next year (right)
. I'll keep my eye open for a XC sport/pro, etc.
