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Suntour Superbe Pro Rear Derailleur Tooth Capacity

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Suntour Superbe Pro Rear Derailleur Tooth Capacity

Old 07-12-13, 11:13 AM
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Suntour Superbe Pro Rear Derailleur Tooth Capacity

I have a bike that I was planning on putting a Superbe Pro rear derailleur on.

Like this one:





I was hoping to use a 30T freewheel with it- and that's not going to happen. What is the largest cog that will clear the upper pulley on this unit? I've read 23, 26 and 28. What is the "real world" answer?
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Old 07-12-13, 11:34 AM
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The "book" says 23T. Many (including myself) have gotten one to swallow a 26T. I think T-Mar or Gran Bois claimed to get a 28T work with certain dropouts, but I would not bet the farm on it.
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Old 07-12-13, 11:37 AM
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+1 I'll double check, but mine is on a 28T, which is really pushing it. I've used it both friction and indexed. Super sketchy in index mode.

Yep, its a 28 rear cog. Just swapped a 7 speed Shimano with the fuggly large black cog for a 6 speed Sunrace. Back to the drawing board on the indexing.








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Old 07-12-13, 11:39 AM
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I ran one successfully with a 26T large cog - 52/42 crank rings. I never tried anything larger.

Edit: just checked velobase - 23T was largest indexed, 26T was largest friction. I was using a friction shifter.

Last edited by blilrat; 07-12-13 at 11:42 AM.
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Old 07-12-13, 11:58 AM
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Thank you guys very much!

Did/does 26T index?
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Old 07-12-13, 02:16 PM
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Originally Posted by The Golden Boy
Thank you guys very much!

Did/does 26T index?
VERY marginally. I was afraid the upper pulley would catch the 26 on the upshift and jam; it was that close. That Alloy cage isn't very receptive to forceful shifting inputs.
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Old 07-12-13, 02:55 PM
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The Sprint 9000 short cage will take a 26 with a Suntour Superbe dropout, so says the literature. It looks like a near identical design

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Old 07-12-13, 03:56 PM
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Thank you all very much!

I was looking at a Sprint RD- but it looks like the Superbe has the same limits as well:




I've been in the process of rebuilding a bike- the concept was to put a triple on it and make it a sort of tour-y bike with Command Shifters and XC Pro. Apparently, the chainline isn't really cut for a triple on this bike, so I opted for a 14-30 freewheel- and got the idea to put the Superbe Pro on- it's a really classy looking piece- more gracile and refined than the XC Pro. Put it on and got the grinding sound on the 30. Oh Well... It's not like the XC Pro isn't sweet on it's own.

It did look nice on the bike, maybe I'll get a different FW in the future...



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