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What can you tell me about the Suntour ARX component group?

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What can you tell me about the Suntour ARX component group?

Old 07-23-09, 02:57 PM
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What can you tell me about the Suntour ARX component group?

Any good? I just picked up a bike today and was shifting with them and they feel pretty freaking smooth for a friction ride. I almost want to say they feel as good as some of those old famous Simplex retrofriction ones. If anyone knows anything about this, do let me know where they fall on the lineup..
superbe, cyclone, etc...
thanks
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Old 07-23-09, 03:03 PM
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They are right around the middle of a big line up.
In 1982, the year before mountain bikes became significant, SunTour equipped about 60% of the medium-priced bicycles, compared to Shimano's 30%. SunTour had 13 different lines of derailleurs. From the top they went; Superbe Pro, Superbe, Cyclone Mk II, Cyclone, BL, ARx, Vx, AR, Seven, Volante, Honor, GT, and Mighty Click. Most lines had a racing and a touring model. Vx rear derailleurs came in four different capacities.
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Old 07-23-09, 03:09 PM
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The ARX was one step down from the Cyclone group and they perform exceptionally well as do most Suntour friction mechs.

Few, if any friction derailers can compare to the Superbe and Superbe Pro and I also rate the Cyclone derailers very highly due to their excellent performance and very light weight.

Prior to 1984 Suntour held the patents on the slant parallelogram design and no other company could match their performance... after Suntour's patent expired (1984) every company adopted this design which was developed in 1964 by Suntour.
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Old 07-23-09, 03:17 PM
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thanks for the replies. Would it be able to accomodate a 9 speed cassette? And now for an ultimate sin question.. would a campy ergo or shimano sti work with this?
thanks
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Old 07-23-09, 03:17 PM
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I much prefer the design of the original Cyclones to the Cyclone Mk2... it is a little more robust and far more elegant in appearance.

https://www.disraeligears.co.uk/Site/...nd_style).html

The Mk2...

https://www.disraeligears.co.uk/Site/...ur_(3700).html

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Old 07-23-09, 03:20 PM
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No they won't work indexed even with Sun Tour index shifters. Roger
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Old 07-23-09, 03:36 PM
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how about friction 9 speed rear?
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Old 07-23-09, 04:28 PM
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With your interest in 9 speeds and indexing, I would just look at the deal Cambria has on the Ultegra RD. I think it is $40. I really love Suntour components, and have ARX on one of my bikes. But sometimes a modern part meets the requirements best. I bought one of these Ultegra derailleurs just as a backup for my Ultegra bike.

https://www.cambriabike.com/shopexd.a...EAR+DERAILLEUR
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Old 07-23-09, 04:55 PM
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You beat me to it!

And don't believe that '27 Max T' stuff. 30T easy - maybe more.
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Old 07-23-09, 06:49 PM
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haha.. i'm actually selling my road bike that has full ultegra. ha
I picked up a univega today with all of these suntour/diacompe parts. This bike is going to be my city beater with moustache bars but only have a set of 9speed wheels lying around. With that said, i want to use those suntours. I guess i'll just see if it works.
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Old 07-23-09, 06:49 PM
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Old 07-23-09, 09:15 PM
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The old Suntour derailers will not index well but many will handle 8 and 9 speed drives in friction mode as they do have the lateral range... I used a Cyclone long cage on my 8 speed Trek with barcons with no issues and it handles a 30 tooth cog just fine.
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Old 07-24-09, 05:23 AM
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Originally Posted by bluenote157
.... they feel pretty freaking smooth for a friction ride....
You answered your own question.
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Old 07-24-09, 06:04 AM
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I'd agree. I have an 84 LeTour with Suntour ARX, and for friction, they are really nice. Not quite as nice as my Cilo with Cyclone bits...but still, IMO very nice stuff.
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Old 09-21-18, 06:54 PM
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I just bought a bike with arx. Looking forward to cleaning it up and seeing how it rides!
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Old 09-21-18, 08:36 PM
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I have a vintage proctor bike with sun tour arx.seems to shift nice but I am not a good judge,new to the vintage scene.
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Old 09-22-18, 07:17 AM
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Zombie thread. Nonetheless, I'm here to say I am using Suntour AR in index mode and it works just fine. Is it radically different from ARX? I don't know.
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Old 09-24-18, 12:22 AM
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Another plus is that the ARX front DR's I find around here are significantly cheaper than Cyclone, yet work as well & are very light. Don
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