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jeff
Posted: Wed Apr 04, 2007 12:29 pm Reply with quote
SOC pussy Joined: 05 May 2006 Posts: 4501

My mtn bike has fixed dropouts, but I'd still like to convert it to single speed.

What's the most logical solution to getting around the fixed dropouts: eccentrick bottom bracket or single-speed chain tensioner?
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zuvembi
Posted: Wed Apr 04, 2007 12:36 pm Reply with quote
Joined: 24 Jul 2005 Posts: 942 Location: Little Addis Ababa

How about the the ENO eccentric hub?

The chain-tensioner would be the way I go, but I'm lazy.


Last edited by zuvembi on Wed Apr 04, 2007 12:37 pm; edited 1 time in total

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henry
Posted: Wed Apr 04, 2007 12:36 pm Reply with quote
somewhat piggish Joined: 05 Aug 2005 Posts: 5415 Location: on porch with shotgun

How much money do you want to spend?

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jeff
Posted: Wed Apr 04, 2007 12:47 pm Reply with quote
SOC pussy Joined: 05 May 2006 Posts: 4501

henry wrote:
How much money do you want to spend?


We're talking about bike parts right? tee-hee.

Chain tensioners are pretty cheap $30 or so. So in that range give or take a $20 spot.
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henry
Posted: Wed Apr 04, 2007 12:53 pm Reply with quote
somewhat piggish Joined: 05 Aug 2005 Posts: 5415 Location: on porch with shotgun

Eccentric hubs are over $100

Chain tensioners can be had for a LOT less

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jeff
Posted: Wed Apr 04, 2007 12:55 pm Reply with quote
SOC pussy Joined: 05 May 2006 Posts: 4501



Woot! Thanks.
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joeball
Posted: Wed Apr 04, 2007 1:01 pm Reply with quote
Joined: 24 Jul 2005 Posts: 6037 Location: Ether

First off Vertical dropouts would be the proper description of what your frame has.

A chain tensioner is the way to go, a fixed location type would probably be best, in contrast to spring tension type like the singulator.

Fixed position types
http://www.pricepoint.com/detail/14059-108_DMRTS5-3-Parts-664-Single-Speed-Parts/DMR-STS-Tension-Seeker-Single-Speed-Tensioner.htm
http://www.pricepoint.com/detail/15164-075_RENRL6-3-Parts-664-Single-Speed-Parts/Rennen-Rollenlager-Single-Speed-Chain-Tensioner.htm
http://www.universalcycles.com/shopping/product_details.php?id=16795&category=

spring type
http://www.universalcycles.com/shopping/product_details.php?id=12054&category=
http://www.universalcycles.com/shopping/product_details.php?id=9755&category=
http://www.universalcycles.com/shopping/product_details.php?id=336&category=
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jeff
Posted: Wed Apr 04, 2007 1:11 pm Reply with quote
SOC pussy Joined: 05 May 2006 Posts: 4501

As usual, Andre comes armed with the facts.

Thanks, I stand corrected on the drop outs.
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lantius
Posted: Wed Apr 04, 2007 1:39 pm Reply with quote
1337 Joined: 22 Jul 2005 Posts: 6705 Location: right over

i'd like to put my dollar in the hat as a vote for magic gearing and half-links. the police bike kicked twice as much ass when i got rid of the derailleur-turned-tensioner and built it with a direct chainline. the chain has stretched just enough that it's perfectly tight in the dropouts with the gearing i wanted.

the one trick is that it is alot easier if you have a couple chainrings to play with and a cassette hub so you can easily use a number of different cog sizes.
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dashap
Posted: Wed Apr 04, 2007 2:21 pm Reply with quote
professor Joined: 21 Jun 2006 Posts: 1566 Location: central district

And if you really want to be a cheapskate on the chain tensioner thing, you can (or at least I have) used an old derailer, with the limit screws all tightened up.
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joeball
Posted: Wed Apr 04, 2007 2:24 pm Reply with quote
Joined: 24 Jul 2005 Posts: 6037 Location: Ether

Most all of our suggestions have been said before, read up

http://www.mtbr.com/faq/ssfaq.shtml
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Aaron
Posted: Wed Apr 04, 2007 7:46 pm Reply with quote
Joined: 25 Jul 2005 Posts: 4645

I stock both 3/32" and 1/8" half links.
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Bo Ttorff
Posted: Sun Apr 01, 2012 2:05 pm Reply with quote
GO SEAHAWKS!! 12 for LYFE Joined: 20 Jul 2011 Posts: 3092 Location: King County

Does anyone recommend a certain type of chain tensioners for a fixed gear with vertical dropouts?
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lantius
Posted: Sun Apr 01, 2012 3:54 pm Reply with quote
1337 Joined: 22 Jul 2005 Posts: 6705 Location: right over

Bo Ttorff wrote:
Does anyone recommend a certain type of chain tensioners for a fixed gear with vertical dropouts?
As far as I know there are no commercial chain tensioners that'd work with a fixed gear. Your best bet is a White Industries ENO eccentric hub or get a different frame.
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the dreaded ben
Posted: Sun Apr 01, 2012 5:56 pm Reply with quote
Grumpy Greeb Joined: 20 Aug 2005 Posts: 5329 Location: flavor country

lantius wrote:
Bo Ttorff wrote:
Does anyone recommend a certain type of chain tensioners for a fixed gear with vertical dropouts?
As far as I know there are no commercial chain tensioners that'd work with a fixed gear. Your best bet is a White Industries ENO eccentric hub or get a different frame.


and let me be the first to tell you the eno hub is a < ideal solution.
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Bo Ttorff
Posted: Sun Apr 01, 2012 6:01 pm Reply with quote
GO SEAHAWKS!! 12 for LYFE Joined: 20 Jul 2011 Posts: 3092 Location: King County

so I was looking at this:


http://labs.yesspro.com/products/etr-v

feedback/thoughts?
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ksep
Posted: Sun Apr 01, 2012 8:25 pm Reply with quote
Joined: 27 Jan 2007 Posts: 1879 Location: Westlake

Bo Ttorff wrote:
Does anyone recommend a certain type of chain tensioners for a fixed gear with vertical dropouts?


You can't do that. Chain tensioners create single speeds not fixed gears. It's going to fail when you backpedal. quote Sheldon Brown:

"Note! Chain tensioners cannot be used with fixed-gear or coaster brake systems! They don't maintain tension when there is backward force applied to the pedals, and the chain can derail as a result."

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Bo Ttorff
Posted: Sun Apr 01, 2012 8:47 pm Reply with quote
GO SEAHAWKS!! 12 for LYFE Joined: 20 Jul 2011 Posts: 3092 Location: King County

Thanks for the feedback guys.
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archie
Posted: Sun Apr 01, 2012 11:20 pm Reply with quote
Joined: 21 Jul 2011 Posts: 149 Location: cloud nine

A while back, Bike So Good had a new ENO hub somebody ordered but bailed on that Ashok was anxious to get rid of. You might be able to get a good deal on it if he still has it. I'm pretty sure it had a fixed side...or do they all?
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Alex
Posted: Mon Apr 02, 2012 5:28 am Reply with quote
Joined: 18 May 2006 Posts: 3128 Location: Roosevelt

I have an Alfine tensioner that you can have for one pint of beer next time we're out mountain biking.



The two cogs don't really help you, but they also shouldn't really hurt.
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jeff
Posted: Mon Apr 02, 2012 8:31 am Reply with quote
SOC pussy Joined: 05 May 2006 Posts: 4501

I ended up using the cheapest singulator money could buy.

It got me to 6,000 feet and back alive.
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Alex
Posted: Mon Apr 02, 2012 10:07 am Reply with quote
Joined: 18 May 2006 Posts: 3128 Location: Roosevelt

doh, I didn't see that Bo had reawakened a 5 year old thread. of course I've ridden with you plenty of times while you were on that Schwinn.

alex
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jeff
Posted: Mon Apr 02, 2012 10:11 am Reply with quote
SOC pussy Joined: 05 May 2006 Posts: 4501

Cheap and effective.
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Alex
Posted: Mon Apr 02, 2012 7:28 pm Reply with quote
Joined: 18 May 2006 Posts: 3128 Location: Roosevelt

Yup, I have a couple of those in service, they do the job nicely.
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Bo Ttorff
Posted: Mon Apr 02, 2012 8:44 pm Reply with quote
GO SEAHAWKS!! 12 for LYFE Joined: 20 Jul 2011 Posts: 3092 Location: King County

Alex wrote:
doh, I didn't see that Bo had reawakened a 5 year old thread.


I didn't want Andre to get upset that I started a new thread on an existing topic that had reasonable responses.

Again, I appreciate the feedback. I realize I'm SOL and just have to stick with the ol' crescent wrench chain tensioner.
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tehschkott
Posted: Mon Apr 02, 2012 8:52 pm Reply with quote
daywalker Joined: 09 Nov 2007 Posts: 6108 Location: Hatertown

You can always use Tug Nuts if you have track dropouts.

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PJ Diddy
Posted: Wed Apr 04, 2012 7:26 pm Reply with quote
Joined: 25 Jul 2005 Posts: 567 Location: magnolia

jeff wrote:
I ended up using the cheapest singulator money could buy.

It got me to 6,000 feet and back alive.

I remember this ride and remember the pain that Ben was in. What was the name of that mountain we reached. I remember getting to a second that day as well. That was the most hike a bike ever.

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