Standard to Compact.

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garrynolan
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Joined: Mon May 04, 2009 21:20 pm

Standard to Compact.

Postby garrynolan » Fri Sep 13, 2013 23:50 pm

Hi, I have Shimano 105 10-speed running gear but it is a standard front. Is it easy/possible/cheap to change it to a Compact (50/34) front setup? Any advice welcome...
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dennisn
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Re: Standard to Compact.

Postby dennisn » Sat Sep 14, 2013 02:05 am

You will need a new crankset. How much this will cost is up to you. High end stuff is big money, low end is, well. not so much. If you stick with a Shimano crank you shouldn't need anything else.

night_porter
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Joined: Sat Aug 08, 2009 10:17 am

Re: Standard to Compact.

Postby night_porter » Sat Sep 14, 2013 04:58 am

A quick google came up with http://www.chainreactioncycles.com/shim ... -prod50444 in their sale.

If you have an older version you may need to change the bottom bracket too.

This is about the cheapest you will get it but unless you have the special tools for removing/refitting it you will need to get it fitted by the bike shop.

Barbarossa
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Joined: Fri Dec 03, 2010 13:18 pm

Re: Standard to Compact.

Postby Barbarossa » Sat Sep 14, 2013 07:31 am

The special tool won't break the bank £1.99

night_porter
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Re: Standard to Compact.

Postby night_porter » Sat Sep 14, 2013 10:01 am

I agree it won't break the bank but one tool won't work if the existing bottom bracket is not Hollowtech II. I don't know what version of 105 he currently has. It could cost in the region of £150 to change the chainset.

If the op wants easier gears then changing the cassette would be cheaper and simpler.

tonye_n
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Re: Standard to Compact.

Postby tonye_n » Sat Sep 14, 2013 14:13 pm

night_porter wrote:I agree it won't break the bank but one tool won't work if the existing bottom bracket is not Hollowtech II. I don't know what version of 105 he currently has. It could cost in the region of £150 to change the chainset.

If the op wants easier gears then changing the cassette would be cheaper and simpler.

Oh pleease! The OP already said that he is running 105 10sp standard crankset.
That would also mean HT2 BB.

Stop making this more complicated than it needs to be...
Last edited by tonye_n on Mon Sep 16, 2013 00:54 am, edited 1 time in total.

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Rolf F
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Re: Standard to Compact.

Postby Rolf F » Sat Sep 14, 2013 16:31 pm

It doesn't matter what BB he has anyway - it's not as though it is likely to be hard to find the equivalent NOS versions on Ebay etc.
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garrynolan
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Re: Standard to Compact.

Postby garrynolan » Sat Sep 14, 2013 23:28 pm

Thank you very much for the replies lads. Think I need to do a wee bit more research on this - Hollowtech and measure crank length... BTW - loved the little spat. :) G.
Visit Ireland - all of it! Cycle in Dublin and know fear!!

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