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Old 02-17-17, 10:33 AM   #26
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After reading all of the commentary I think I'm open to the idea of going the Suntour route on this bike. I'm a rider; not so much a collector.

So, Suntour Vx-GT; Suntour VG-T Luxe; Cyclone, etc. What are the best options or are all of these equally good?
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Old 02-17-17, 10:43 AM   #27
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So, Suntour Vx-GT; Suntour VG-T Luxe; Cyclone, etc. What are the best options or are all of these equally good?

They all work just fine but a quality C&V 531 or SL/SP frameset deserves a Cyclone GT if you can find one in good nick at a reasonable price.

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Old 02-17-17, 10:46 AM   #28
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Got it!

Oh, I may as well ask before I go searching: any particular "generation" or spec? Thanks!

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Old 02-17-17, 11:47 AM   #29
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So, Suntour Vx-GT; Suntour VG-T Luxe; Cyclone, etc. What are the best options or are all of these equally good?
In my experience, all SunTour derailleurs, regardless of model level, seem to perform pretty much identically, which is to say "very well indeed." The differences are materials and construction. The Vx-GT has many steel parts, making it the heaviest, but arguably the sturdiest. The V-GT Luxe uses much more aluminum, and so is lighter. The Cyclone GT is the lightest, best finished, and arguably the most delicate.

SunTour "Mountech" derailleurs also have a long cage for wide gearing, and while they perform very well when new and clean, they do not always age well. The upper pulley tends to get clogged over time, particularly with the off-road riding for which these units were designed. If you can find one in good condition, and your riding style allows you to keep it that way, they are worth considering.
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Old 02-17-17, 11:58 AM   #30
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Got it!

Oh, I may as well ask before I go searching: any particular "generation" or spec? Thanks!
personally, I'm fond of the first generation Cyclone derailleurs. The main reason is that the second generation has an "aerodynamic" cable clamp bolt. The bolt is hidden in the parallelogram and IMHO, it's a real pain to thread the cable through the hole in the bolt. Other than this, there's not much functional difference.

Here's a shot of the 1st gen Cyclone GT on my commuting/touring bike. This poor abused derailleur has about 35,000 miles on it, and it still works fine.




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Old 02-17-17, 12:05 PM   #31
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My humble opinion? A deer head, Deore or later, shimano rear is a much better derailleur than anything Suntour made.
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Old 02-17-17, 12:06 PM   #32
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personally, I'm fond of the first generation Cyclone derailleurs. The main reason is that the second generation has an "aerodynamic" cable clamp bolt. The bolt is hidden in the parallelogram and IMHO, it's a real pain to thread the cable through the hole in the bolt. Other than this, there's not much functional difference.

Here's a shot of the 1st gen Cyclone GT on my commuting/touring bike. This poor abused derailleur has about 35,000 miles on it, and it still works fine.




Steve in Peoria
So, the Cyclone GT appears to be the one I want because of its greater capacity? Thanks!
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Old 02-17-17, 12:37 PM   #33
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So, the Cyclone GT appears to be the one I want because of its greater capacity? Thanks!
In terms of capacity, I think the Cyclone was rated for 32 teeth(?). I seem to recall the VGT being rated for 34 teeth (but please check an old catalog or Velobase to verify). The VGT is cheaper, heavier, and nearly nuke-proof.


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Old 02-17-17, 12:52 PM   #34
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And Cyclone GT is the thing of beauty and you want it no metter the build or capacity.
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Old 02-17-17, 12:58 PM   #35
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A bit of Suntour background:
The Cyclone is lighter, fancier, and better finished. The V-GT is a bit more rugged and a bit more crude looking. BITD the Cyclone cost twice as much as a V-GT, and was intended to compete with high end derailleurs then on the market. The Vx-GT was a slightly improved/newer version of the V-GT which came along around 1980 I believe. BL derailleurs are also worth looking at as they tend to fly under the radar. They were priced midway between a V and and Cyclone, and were also introduced around 1980.

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Old 02-17-17, 01:22 PM   #36
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Now that we have all come to a consensus on the Rally being a poor derailleur I recommend one of you send a first generation version to me for a pittance.
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Old 02-17-17, 02:42 PM   #37
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My humble opinion? A deer head, Deore or later, shimano rear is a much better derailleur than anything Suntour made.
Why would you think that? The Deerhead predates the expiration of Suntour's slant parallelogram design patent, so belongs to the same class of derailleurs as the Crane, Titlist, etc. Those all had poorer shifting than the Suntours. It wasn't until expiration of the patent in 1984 that Shimano started brazenly copying the superior Suntour designs.

Now, I will admit that some of the much newer Shimano derailleurs shift equally as well as the old Suntours (I even have an Ultegra 6500 GS on one of my bikes). However, they are all uglier and heavier and they have a very limited max tooth count (27 I think...ridiculous!).

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Old 02-17-17, 03:24 PM   #38
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I'm in a minority on this, but I disagree with my esteemed Suntour friends; if your intention is truly practical/functional, get a newer bike. A big part, to me, of riding/owning these bikes is show/aesthetics...and there are bikes that look "right" with a Rally. I also frankly don't think the difference is as large as some others think (none of them work that well).

To me arguing over rally vs Suntour vs. Crane is like asking which bow and arrow is best.
Yeah, I agree with this. People claiming the Suntour is 1000 times better than the Rally are exaggerating. Yes, they are lighter and shift a little cleaner, but the Rally is fine and just looks right on some bikes. For other bikes, the Cyclone is perfect, too. Let's be honest, most of us are not taking these bikes cross country, either.

That said, I'm happy to debate what bow and arrow is best for what skill level. (If you're new and want a recurve, the Samick Sage is popular for a reason, don't reject it just because everyone one else has one too.)
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Old 02-17-17, 03:25 PM   #39
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Edit - debating Suntour is like a debate over politics.

Use what you want...others might like their stuff more.

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Old 02-17-17, 04:53 PM   #40
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There are differences in the cage of the vgt luxe and vx-s (or vx-gt). The inner cage plate of the vgt luxe sticks up much higher and so can interfere with the next larger sprocket. That makes th vx-s or cyclone more desirable for larger sprockets. Something to think about.
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Old 02-17-17, 07:09 PM   #41
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A bit of Suntour background:
The Cyclone is lighter, fancier, and better finished. The V-GT is a bit more rugged and a bit more crude looking. BITD the Cyclone cost twice as much as a V-GT, and was intended to compete with high end derailleurs then on the market. The Vx-GT was a slightly improved/newer version of the V-GT which came along around 1980 I believe. BL derailleurs are also worth looking at as they tend to fly under the radar. They were priced midway between a V and and Cyclone, and were also introduced around 1980.
I happened onto a few Blueline rear mechanisms, very good. Underpriced.
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Old 02-17-17, 08:54 PM   #42
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Got it!

Oh, I may as well ask before I go searching: any particular "generation" or spec? Thanks!


Since most models and generations shift about the same, you might consider going 'period correct' and get the one that's the right age for the bike. The first gen Cyclone is getting up there in price, though, so one of the others might be a better bet. VxGt or VgT, or 2nd gen Cyclone.
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Old 02-18-17, 11:15 AM   #43
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So, the Cyclone GT appears to be the one I want because of its greater capacity? Thanks!
If you're concerned about capacity and want to retain a C&V feel, then the obvious choice is a 1985-1986 Suntour model with the triple pulley cages and a 42T chain wrap capacity.
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Old 02-18-17, 05:16 PM   #44
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It's all friction, so unless you're trying to recreate a bike off the pages of a catalog, you have lots of choices. Any of the Suntours discussed so far are great, including even the SVX-GT, the "mutton dressed up as lamb" that was the end of that line.

I'll try to find a photo to add.


My edit accidentally cut off the rest of the msg. The Ultegra 6500 mentioned above is excellent, as is the Deore XT M-739. Try different ones. Who cares how precisely you match the catalog page?

Cheers!
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