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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 12-27-10, 07:26 PM   #1
thirdgenbird
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50% dingle, 50% flip flop, 100% functional

well i ran into a new campagnolo 39t ring for $15 so i bought it to give me a second gearing option. in the process i discovered and interesting setup. i fully expect that some may laugh:




now for the explication. my rear hub is a white industries eno.

fixed chain line = 43mm
ss chain line = 47.4mm

this gives me a 42x16 fixed for road riding and a 39x18 for cross riding and a close chain length for each. funny looking yes, but great flexibility for $15
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Old 12-27-10, 07:45 PM   #2
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Clever. I dig it. Nice use of the big difference in chainline between fixed and free sides of your hub. An added bonus of having the 39t on the outside while riding more technical terrain ('cross) is that your calves will be a little more protected from getting chewed up by an empty outer chainring if you bail/crash funny.
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Old 12-27-10, 07:54 PM   #3
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Nice!
I have to admit I had to actually look at your photo as opposed to glancing like usual
I LOL'd
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Old 12-27-10, 07:54 PM   #4
thirdgenbird
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Originally Posted by FKMTB07 View Post
Clever. I dig it. Nice use of the big difference in chainline between fixed and free sides of your hub. An added bonus of having the 39t on the outside while riding more technical terrain ('cross) is that your calves will be a little more protected from getting chewed up by an empty outer chainring if you bail/crash funny.
yeah, at first i was disapointed the small chainring had to be on the outside then i remembered having a bloody calf from single track riding and going down.
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Old 12-27-10, 07:56 PM   #5
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Nice!
I have to admit I had to actually look at your photo as opposed to glancing like usual
I LOL'd
my dad who has been a bike mechanic for years did a double take on it. it looks really odd having the rings "reversed"
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Old 12-27-10, 08:23 PM   #6
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my rear hub is a white industries eno.

fixed chain line = 43mm
ss chain line = 47.4mm
So with that hub, the chainline is not the same on the free side and the fixed side? Why would they do that? Is 4.4mm too far off to run it fixed if you have a single ring and it is at 47.4?
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Old 12-27-10, 08:34 PM   #7
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I have no idea why they did it. The fixed side lines up with the inside ring very well. When I had the wheel on a road bike I ran the single ring on the outside with a shorter chorus bb. Either way you get a good chainline.
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Old 12-27-10, 08:38 PM   #8
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looks great if you ask me. the smaller ring on the outside continues the flattened conical form of the spider.
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Old 12-27-10, 08:46 PM   #9
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Very true standalone.

It's not near as clean as the single ring, but sometimes function comes over form.
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Old 12-27-10, 09:04 PM   #10
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I have two rings for my double freewheel, not reversed though. Way to make it work.
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Old 12-27-10, 09:27 PM   #11
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It's a good idea. I'm totally annoyed that the chainline on the ENO is different on each side. I wrote White about it and they did not write back. I don't get it. It almost seems like an engineering mistake.

But maybe someone will clue me in.
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Old 12-27-10, 11:08 PM   #12
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Great idea. Love the look, I always thought manual 2-speed setups like yours with the standard chainring orientation looked very strange, this one looks nice.
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