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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 12-01-09, 09:01 AM   #1
treebound 
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2-speed setups?

I've had an idea in the back of my mind for awhile now, maybe I should just keep it there 8-).

I've been thinking of using a singleator chain tensioner and running just a front derailleur. Sort of a singlespeed with a hill gear. Has anyone done this? Any issues that you can think of?

Thanks for any specs, details, thoughts, links, pics,....
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Old 12-01-09, 09:12 AM   #2
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It won't work well, you'll always have a bad chainline and the singelator isn't designed to be used like that. I'm not sure that it can even take up that much slack. If you want to switch gears on the fly, than get an IG hub. If you want a bailout gear, use a flip-flop, double cog, or double-ring/double-cog set up.
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Old 12-01-09, 09:21 AM   #3
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You're a bit behind...

But try studying these guys, they already made it to 11.

And these guys do it with computers.
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Old 12-01-09, 09:52 AM   #4
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Trail/back road gearing


Road gearing


Paul Melvin tensioner


The only bike more functional than a SS is a 2 speed.
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Old 12-01-09, 10:05 AM   #5
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you should run white industries DOS ENO freewheel and call it a day.
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Old 12-01-09, 10:20 AM   #6
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Thanks Saddle_up, that's close to what I was looking for. The other inputs are appreciated as well
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Old 12-01-09, 01:55 PM   #7
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The only bike more functional than a SS is a 2 speed.
What about a 3-speed? Triple crank and you're so there!

Looks awesome, by the way.
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Old 12-01-09, 02:18 PM   #8
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Why not just run a rear deraileur and go 1x8?
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Old 12-01-09, 02:22 PM   #9
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And these guys do it with computers.
Sounds kinky.
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Old 12-01-09, 03:37 PM   #10
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whats the point? manually changing gears rather than changing them on the fly seems rather unnecessary and a pain in the ass. if you have horizontal/vertical dropouts and all the braze-ons, why not add shifters and derailers as well?
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Old 12-01-09, 03:40 PM   #11
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If he was running a front derailleur, he could change them on the fly...
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Old 12-01-09, 04:13 PM   #12
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That's my thinking, simplify the bike, but keep the front derailleur to avoid the manual gear change.

The two-cog freewheel is interesting but I don't want to have to adjust the rear wheel to change gears. I've got a Fillmore and don't think I've flipped the wheel on it even once yet.

I've got a couple of old 10/12 speed roadbikes that I'm thinking of converting. If I get one converted and functional I'll probably flip the Fillmore wheel to the fixed side and leave it that way.

Just having fun playing with bikes and trying something a little different.
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Old 12-01-09, 04:32 PM   #13
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you should just run a 1 x 2. That way you only have a rear derailleur, instead of a rear tensioner and a front derailleur. Think about the clean lines here, not about being unique.
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Old 12-01-09, 04:47 PM   #14
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I've run a dérailleur-less double front on a couple homebuilt choppers. Changing gears is a snap. Would be nice to bomb out to the trails in high gear, flop the chain over and hit some singletrack. That Specialized looks fun.
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Old 12-02-09, 12:26 AM   #15
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Changing the front by hand isn't a big deal, though you do get your hands dirty.
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Old 12-02-09, 03:07 AM   #16
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I was wondering, is it possible to have multiple gears(like a 10-speed) without coasting? What would you call that? Because honestly coasting bikes are dangerous for me to ride now.
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Old 12-02-09, 04:43 PM   #17
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I was wondering, is it possible to have multiple gears(like a 10-speed) without coasting? What would you call that? Because honestly coasting bikes are dangerous for me to ride now.
read the threads about the s3x hub. 3 speed fixed gear. that's the closest you'll get.


having a rear derallieur on a fixed gear is a recipe for disaster
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Old 12-02-09, 10:25 PM   #18
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I've been thinking of using a singleator chain tensioner and running just a front derailleur. Sort of a singlespeed with a hill gear. Has anyone done this? Any issues that you can think of?
Single idler tensioners like the Singleator won't take up much chain so your rings would have to be pretty similar in size. IIRC the limit is about 5-6t difference. The Melvin would wrap up more chain.

But IMHO it seems silly to have both a FD and a tensioner. You could be better off with just an older rear derailleur like a Huret Svelto which is no bulkier than a Melvin and has enough adjustment that you can limit travel to two cogs. I do this to add gears to Sturmey Archer hubs but you can just run two cogs on a freehub or FW with spacers.


Svelto, Sturmey 4 speed FM hub, KMC 1/8" chain, 18t Nexus cog and 24t HyperGlide cog.

2 cog setups shift great, much better than front shifts. Even with crappy cogs and chains from the '70s. With Hyperglide cogs and modern chain, shifting is amazing, even on the 22-34 I did for the wife. Chainline is great compared to a normal derailleur set-up.

Another possibility is that Sturmey is coming out with a modern 2 speed kickback hub w/coaster brake.
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Old 12-03-09, 09:18 AM   #19
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That's an interesting setup combining an internal gear with a derailleur set up. I've got a 700c wheel with a 7-speed IG hub but it takes a different type cog/sprocket.

I thought I might be stretching the envelope in the SS/FG section asking about 2-speeds, I'll head to a different sub-forum if I revisit the 7-speed hub use.

I've got some thinking to do, probably end up with three winter projects.
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Old 12-03-09, 09:24 AM   #20
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You're a bit behind...

But try studying these guys, they already made it to 11.

And these guys do it with computers.
Awesome.

Next people are gonna ask for water bottle holders and a way to take off wheels without having to use a 15mm wrench.
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Old 12-03-09, 12:55 PM   #21
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You could always run a surly dingle: http://harriscyclery.net/itemdetails.cfm?ID=2466
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Old 12-03-09, 01:14 PM   #22
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running a surly dingle cog 17/19 with 32/34 up front.
saving my pennies for a dos eno freewheel from white ind.

flip flop wheel on my soma juice, so i can run the same ratios fixed or free, depending on mood.

i had it setup on my crosscheck prior... with a flop for a single ss.

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Old 03-04-10, 02:12 PM   #23
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You're a bit behind...

But try studying these guys, they already made it to 11.

And these guys do it with computers.
New Yorker...figured as much...

more importantly TREEBOUND, what did you settle on for your 2-fer setup?
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Old 03-04-10, 02:20 PM   #24
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i'm confused....

what was wrong with this?

http://www.bikesdirect.com/products/...kilott_s3x.htm
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Old 03-04-10, 04:20 PM   #25
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How about a 2-speed coaster hub?



There's usually some on eBay:
http://shop.ebay.com/i.html?_nkw=ben..._dmd=1&_ipg=50
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