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Please help me ID this Suntour RD

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Please help me ID this Suntour RD

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Old 01-03-23, 05:08 PM
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tmnguuyen 
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Please help me ID this Suntour RD

I acquired the Raleigh Richmond from a tip on the other "Are you looking....:" thread. This is a pretty cool bike. For sure it is a European market only. The brake levers are reversed. I'm planning on converting into my Japan Eroica bike.
The current set up is upright, single ring crank and 5 speed. The derailleur on it is nothing i've seen before. BF brain trust please jump in. Unusually cage and jockey wheels. Terrible pictures.... I'll have more info when i pull the part off but if anyone has info readily available please let me know.

Thanks


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Old 01-03-23, 05:26 PM
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Someone will likely know for sure, but you might just scroll through the entries in Velobase for a visual match: https://velobase.com/ListComponents.aspx?Category=108
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Old 01-03-23, 05:37 PM
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Trimec?
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Old 01-03-23, 05:40 PM
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Originally Posted by ehcoplex
Trimec?
Getting warm.... The top pulley looks the same as the trimec but the rest does not. Thanks

Last edited by tmnguuyen; 01-03-23 at 07:00 PM.
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Old 01-03-23, 06:04 PM
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It is evidently horrid enough that Suntour attempted to destroy all evidence of its existence. One always sneaks through, though.
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Old 01-03-23, 06:34 PM
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Now I've gone down a rabbit hole.....!

It does look like it hails from the 'Curse of the Duo-Par Years.....'
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Old 01-03-23, 07:53 PM
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Originally Posted by ehcoplex
Now I've gone down a rabbit hole.....!

It does look like it hails from the 'Curse of the Duo-Par Years.....'
"Sir, the Duopar apparently did break into the Cyclone II breeding pens..."
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Old 01-03-23, 08:02 PM
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Originally Posted by RCMoeur
"Sir, the Duopar apparently did break into the Cyclone II breeding pens..."

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Old 01-03-23, 09:09 PM
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The parallelogram/body of this SunTour Cap (Model 5100) looks right. The rest, not so much.

The link is to a page from Disraeli Gears, a great Cream album and a great on-line resource for info about derailleurs.
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Old 01-03-23, 09:46 PM
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It's Alive!!! Well barely. Perhaps intended for MTB usage? Never thought I'd say an Allvit looks nicer than another RD. But if it shifts well, function over form. Definitely a conversation-starter.
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Old 01-04-23, 08:20 AM
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Originally Posted by ehcoplex
Now I've gone down a rabbit hole.....!

It does look like it hails from the 'Curse of the Duo-Par Years.....'
The Duopar was the best-shifting wide range derailleur in its day, and others tried to implement its secondary parallelogram articulation without infringing on Huret's patent. SunTour came up with Mountech, from which the OP's derailleur is derived; Shimano had "Superplate," but both these were more complex than Huret's design and didn't really perform any better. When SunTour's patent on the slant parallelogram lapsed, others were free to adopt it, and the added complexity and fragility of the second articulation didn't justify continuing the effort.
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Old 01-04-23, 09:20 AM
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@tmnguuyen - If you mean the front brake lever is on the right side, it is not reversed just a preference. I grew up with that configuration as did a lot of people over 60 . Dave Molton still sets his bike up this way too.
Having owned a number of motorcycles, it is nearly intuitive for me to use the right hand to control the front brake. I used to lock-up the front brake on the CB1100F routinely to know the limits in case of an unexpected braking scenario.

Yes, the cable routing is a bit odd when using Campagnolo or newer side pulls, but before that there were center pulls and a number of side pulls with the cable running to the NDS. on the front.
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Old 01-04-23, 11:01 AM
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Originally Posted by SJX426
@tmnguuyen - If you mean the front brake lever is on the right side, it is not reversed just a preference. I grew up with that configuration as did a lot of people over 60 . Dave Molton still sets his bike up this way too.
Having owned a number of motorcycles, it is nearly intuitive for me to use the right hand to control the front brake. I used to lock-up the front brake on the CB1100F routinely to know the limits in case of an unexpected braking scenario.

Yes, the cable routing is a bit odd when using Campagnolo or newer side pulls, but before that there were center pulls and a number of side pulls with the cable running to the NDS. on the front.
Yup, the brake set up is per the motorcycle convention. I have a motorcycle riding friend that has all his bikes set up this same way. I was just pleasantly surprised that i got a Raleigh that is very British. I didn't know the US used that set up early on. Doesn't Dave Mouton have his roots in England?

Thanks
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Old 01-04-23, 11:26 AM
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Originally Posted by tmnguuyen
Yup, the brake set up is per the motorcycle convention. I have a motorcycle riding friend that has all his bikes set up this same way. I was just pleasantly surprised that i got a Raleigh that is very British. I didn't know the US used that set up early on. Doesn't Dave Mouton have his roots in England?

Thanks
Yes. Came to the US and did a stint at Masi California.
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