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Suntour Vx rear derailleur request and question

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Suntour Vx rear derailleur request and question

Old 04-29-10, 06:43 AM
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jonwvara 
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Suntour Vx rear derailleur request and question

I have a nice unused Suntour Vx-S rd that I'd like to use, but it's missing the mounting bolt--it presumably escaped because it was one of the non-captive bolts like those used on some of the Cyclone derailleurs and probably others. I thought I could just take a mounting bolt from the trashed VGT Luxe I also have, but it's a different size--ditto for the Cyclone mounting bolts.
Does anyone have a Vx mounting bolt they'd be willing to part with for a few bucks or a trade for some other potentially useful item?
Also, as I recall, the Vx-S was rated for a maximum cog of 30 teeth. It seems to be what I'd call a medium cage--about 58-59 mm between the cog pivots. Anybody care to take a guess on whether that could be pushed to 32 teeth?
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Last edited by jonwvara; 04-29-10 at 06:46 AM. Reason: fix typo
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Old 04-29-10, 07:52 AM
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Check www.loosescrews.com for the mounting bolt.

Generally manufacturers rate their derailleurs on the conservative side, so you should be able to get away with 32 teeth if its rated for 30. I'm getting away with 25 T on a Superbe RD that claims to handle only up to 23T, but admittedly it just barely clears the big cog...it wouldn't go any bigger
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Old 04-29-10, 09:50 AM
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Originally Posted by Zaphod Beeblebrox View Post
Check www.loosescrews.com for the mounting bolt.
Thanks for the suggestion, but they don't have 'em. I'm hoping someone has one in their parts bin.
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Old 04-29-10, 09:56 AM
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I have a Vx here that I won't part out but can probably match up the bolt from my little stock of Suntour bits and if not... I also have a few places here I can look for spares.
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Old 04-29-10, 09:59 AM
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I could use the one from the "trashed V-GT Luxe", IF it will fit a VX-GT...I wish this alphabet soup of SunTour was easier: Anybody got a simple reference list of sizes for mounting bolts and what RDs they fit?
Check out my for sale and trade list for trade bait...
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