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Roadlink with 6 Speed Freewheel

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Roadlink with 6 Speed Freewheel

Old 10-12-17, 09:12 PM
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tarsi 
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Roadlink with 6 Speed Freewheel

Anybody tried one of these?

https://www.wolftoothcomponents.com/products/roadlink

I have a short cage Shimano 600EX I'd like to try with a Shimano 14-34 freewheel.

Any thoughts?
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Old 10-12-17, 09:17 PM
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Bet it would work. With one of those, you could probably let the B-screw in quite a bit, so shifting the smaller cogs may not be too bad.
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Old 10-12-17, 09:38 PM
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Roadlink will increase the maximum cog size, but not the wrap capacity. So a short cage may not work.
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Old 10-13-17, 03:32 PM
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See below for feedback from the manufacturer. I prefer a vintage derailleur to stay consistent with the rest of the bike. Any suggestions?

From Wolf Tooth:

Thanks for reaching out to us. We have designed and tested the Road Link with 10 & 11 speed applications in mind. With that said we have had plenty of customers use the Road Link successfully for projects outside of our test parameters.

You need to make sure that you do not exceed the capacity of the derailleur. The RoadLink does NOT expand your derailleurs capacity.
/roadlink-tech-page

Alternatively you may want to look at some of the current mtb derailleurs. An inexpensive modern derailleur run in friction will probably work for you.
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Old 10-13-17, 03:55 PM
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Isn't a long-cage derailleur better?
You may be able to unscrew the cage and move it to your old derailleur.

Vintage Used Shimano 600 GS rear derailleur with long cage | eBay
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Old 10-13-17, 04:10 PM
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My question would be, it increases the distance to allow acceptance of a really wide range cog set, but that is unwanted for probably half the range.
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Old 10-14-17, 08:05 PM
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Originally Posted by Barabaika View Post
Isn't a long-cage derailleur better?
You may be able to unscrew the cage and move it to your old derailleur.
If you've got a long cage rear derailleur, why not just use it rather than unscrewing the cage, etc.? Length of the cage isn't the only difference between long and short cage derailleurs; one works better on narrow range clusters, the other on wide range ones. And besides, think of all the extra work you save.
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Old 10-17-17, 10:29 AM
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Originally Posted by palincss View Post
If you've got a long cage rear derailleur, why not just use it rather than unscrewing the cage, etc.? Length of the cage isn't the only difference between long and short cage derailleurs; one works better on narrow range clusters, the other on wide range ones. And besides, think of all the extra work you save.
A used derailleur can be scratched more than the existing derailleur.
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Old 12-29-17, 03:00 AM
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@tarsi - - - I'm curious what your end result was? i'm in almost the exact same boat. i'm starting a 650b conversion, the bike came with a full shimano 600 ex group ( 6speed cluster, 6 speed indexed/friction shifters). The new 650b wheels are 9 speed, 14t-32t and i'll be using the shifters in friction to shift the 9 speed cassette. I'm curious if the roadlink worked for you or if you simply used a longer cage rear der?
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Old 12-29-17, 03:45 AM
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I tried a RoadLink on my Motobecane Grand Record with a 9-speed Campagnolo Racing T rear derailleur. I had problems with the derailleur wanting to jump out of gear. I eventually convinced myself that this was because the chain wasn't wrapping enough teeth on the cassette. Campagnolo derailleurs are more sensitive to this than Shimano (for which the RoadLink is designed) because they pivot differently. I was able to make it better by shortening the chain, by I eventually gave up on it for that setup.

So for use with a vintage derailleur, in addition to the total capacity issue already raised, I would say it may work but it also may have trouble.
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Old 12-29-17, 10:28 AM
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I've installed mega range 14 - 34 freewheels on a couple of bikes. The existing short cage derailleurs failed to climb up onto the big cog and got really stretched out. My solution was to install Shimano Deore M591 long cage RD's. If you check on ebay, you can usually find NOS M591's for around $30. Don't worry about the 9 speed designation. They will shift 5, 6, or 7 speed just fine.
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Old 12-29-17, 10:35 AM
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If you have only one chainring, then the wrap is just the difference between smallest and largest cogs, and wrap is sufficient..

I have used a road short cage with a 13~34t freewheel 25 years ago, before that widget was thought of.. just extended the B screw..
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Old 12-29-17, 10:38 AM
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Originally Posted by Barabaika View Post
Isn't a long-cage derailleur better?
Yes.

I have one of these, they are excellent. See: https://velobase.com/ViewComponent.as...8ef75&Enum=108

You might also look at Deore: https://www.velobase.com/ViewComponen...=108&AbsPos=49
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Last edited by Barrettscv; 12-29-17 at 11:51 AM.
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Old 12-31-17, 06:40 PM
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Originally Posted by ramzilla View Post
I've installed mega range 14 - 34 freewheels on a couple of bikes. The existing short cage derailleurs failed to climb up onto the big cog and got really stretched out. My solution was to install Shimano Deore M591 long cage RD's. If you check on ebay, you can usually find NOS M591's for around $30. Don't worry about the 9 speed designation. They will shift 5, 6, or 7 speed just fine.

thanks for the responses, i'm going to give the short cage a try, if that doesn't work, i've got a spare long cage in the parts bin, i think a Shimano altus... interesting, going 1x9 might work with that derailleur. i initially wanted to keep as much of the Shimano 600 group together, but converting it to 650b already knocks out the original brakes in that equation. More developments to come as my new-to-me wheel set arrives this coming week!
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Old 01-03-18, 01:15 PM
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Originally Posted by dustybutdigital View Post
@tarsi - - - I'm curious what your end result was? i'm in almost the exact same boat. i'm starting a 650b conversion, the bike came with a full shimano 600 ex group ( 6speed cluster, 6 speed indexed/friction shifters). The new 650b wheels are 9 speed, 14t-32t and i'll be using the shifters in friction to shift the 9 speed cassette. I'm curious if the roadlink worked for you or if you simply used a longer cage rear der?
Ended up using a long cage derailleur instead.
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Old 01-03-18, 02:22 PM
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Originally Posted by dustybutdigital View Post
thanks for the responses, i'm going to give the short cage a try, if that doesn't work, i've got a spare long cage in the parts bin, i think a Shimano altus... interesting, going 1x9 might work with that derailleur. i initially wanted to keep as much of the Shimano 600 group together, but converting it to 650b already knocks out the original brakes in that equation. More developments to come as my new-to-me wheel set arrives this coming week!
I have an Shimano Altus derailleur on a vintage bike with a 48, 36 & 26 triple and a 13-30 seven speed freewheel. It works perfectly. Ideally suited to a 7 or 8-speed drivetrain, it has enough capacity to handle a double or triple crankset. With its light action design, Teflon coated bushings and efficient spring, this derailleur is perfect for recreational cycling and touring.

Features:
Cage Length: Long Cage (SGS)
Max Sprocket: 34 Tooth
Total Capacity: 43 Tooth
Speed: 7/8 speed
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