From 3 speed to single... | The Public House

From 3 speed to single…

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8:45 pm
Sep 4, 2010

westerniser

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posts 6

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Hi… probably a question for the Guv’nor technical elite!

I own a 3 speed guvnor in London. I find I’m mostly in second gear but it’s a little too low for most occasions — and gear three is too high unless I have a downhill section.

I was thinking about trading in for a single speed version (I have an opportunity to more-or-less do a straight swap.) However, I was wondering how the gearing compares to my 3 speed? Does the single speed gear equal my second gear, or is it set slightly higher as a good all rounder?

Also, is the single speed any lighter? If so, any ideas how much?

Thanks!

10:25 pm
Sep 4, 2010

Duchy Wheeler

Cornwall. UK

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posts 395

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Post edited 10:45 pm — Sep 4, 2010 by Duchy Wheeler

Hello Westerniser.….….……according to the Owner’s Manual, gearing spec. is: Single Speed Gear: 65″. Three Speed Gear: 44″, 59″, 78″. So the single speed is between 2nd. and 3rd.….….……safe rides one and all, Geoff.

PS: The weight of the SA hubs are: X-RD, 835g & X-RD3, 1400g.

12:00 am
Sep 5, 2010

Adam

Manchester, England

Moderator

posts 399

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Evening Mr. Westerniser,

Have you considered changing the size of your rear sprocke to adjust the ratiost? These only cost about £3.00 plus about £5.00 for a sprocket tool to undo the lock-nut.

Riders opinions differ between the single and the three speed, the main difference, although both are fine bikes is the single-speed version is the correct one.

Regards,

Adam

7:06 am
Sep 5, 2010

schloopfeng

Regular

posts 64

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Hello Folks,

Speaking of changing the sprocket, this is exactly what I did on friday .… my 3 speed now runs a 14 tooth instead of 20 which is a dramatic difference (I ordered a 16 but this lil thing turned up first & I just had to dabbble & as rightly said they can be had for as little as £2.85) … another point is we found nothing more than a small screwdriver is needed to change it as it’s held in place with a circlip.

But thanks to the sprocket it goes like a rocket, however it is a bit of a legbuster .… I would suggest an 18 if you don’t want too much of an increase .… the chainline looks much nicer too.

TTFN

9:36 am
Sep 5, 2010

westerniser

Regular

posts 6

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Brilliant, so the single speed so quite a bit lighter, as well as having a perfect sounding gear between the 2 and 3 on my 3 speed. I looked for ages online for this info, the forum has delivered!

10:04 am
Sep 5, 2010

Duchy Wheeler

Cornwall. UK

Regular

posts 395

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Post edited 10:09 am — Sep 5, 2010 by Duchy Wheeler

One and all.….….……also worth checking out is the CTC website with regard to gearing etc.. See my web link in Forum > ‘Are you happy with 3 gears’, dated 6:55pm August 4. Explains gear inches, which I guess many cyclists misunderstand, including myself until I read it!.….….……safe rides, Geoff.

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