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Old 10-15-2021, 03:29 PM
Bencolem Bencolem is offline
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Join Date: Aug 2009
Location: Savannah, GA
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Serotta Coeur d’Acier Single Speed

I’m posting it in the custom rather than production bikes gallery because a). I’ve never seen one before and b). the geometry must be custom!

Purchased through the forum, it’s my first ever single speed (despite having had 41 road / gravel bikes to date!) and I now wish I’d done it years ago.

It’s so simple and silent and pure. No derailleurs for the chain to snake through and a perfectly centered chainline and you can feel the efficiency.

Couple the ‘purity’ of a single speed with the typical Serotta smooth and damped ride and I love riding it.

Came with a 48T chainring and 18T freewheel.

Not knowing anything about single speed gearing I did a century ride on it averaging 22mph and a cadence of 119rpm…

Now changed to a 52T chainring and a 16T freewheel and it’s much better but I could still go higher, I’m spinning out at 28mph.

I don’t think you can get a smaller freewheel (certainly not from White Industries) and I don’t want to go fixed so I guess the only option would be a larger chainring but I’m not sure I want the aesthetic of a dinner plate given it’s such a classic bike.

If you haven’t before, get yourself a single speed road bike. Game changer!
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  #2  
Old 10-15-2021, 04:42 PM
brewsmith brewsmith is offline
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Join Date: Aug 2015
Location: Denver, CO
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Very slick. Not sure about white industries, but I do have a 14t Shimano freewheel, so they're out there.

Going a few teeth hightler on the chainring is also easy, and I don't think it would throw off the aesthetics, especially if you get a nice one. You only have one gear, so make it a good one!
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Old 10-15-2021, 07:24 PM
retropean retropean is offline
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Join Date: Apr 2020
Posts: 420
It looks great! I miss the simplicity of my fixed gear but don’t think I want to bust my knees any further, maybe I should…
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  #4  
Old 10-15-2021, 08:45 PM
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bicycletricycle bicycletricycle is offline
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Smaller than 16t freewheel is only available with a cassette hub (rare but possible to get in 120 spacing, gran bois makes one https://www.veloduo.co.uk/products/g...ge-flange-hubs) or a special smaller thread BMX bikes used to have which allowed 14 & 15 tooth freewheels to be fitted. I don't think anyone makes the hubs or freewheels anymore for that standard.

The gran bois hub fits 5 or 6 speed cassettes so you could put a couple single speed cog on it and switch the gearing mid ride if you have a headwind
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