Changing from 12-36 to 11-32 : Chain or mech adjustment

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tbikeradar
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Changing from 12-36 to 11-32 : Chain or mech adjustment

Postby tbikeradar » Wed Nov 07, 2012 17:32 pm

Hi everyone,

Just wanted a bit advice on the above.

I am riding a lot of flat stuff and dont need a 12-36 rear cassette:

My current setup is 39/26 at front and 12-36 rear.

I want to go 39/36 front and 11-32 rear.

Should I shorten my chain accordingly or can I adjust the rear mech to take up the slack?

Thanks,

tBike..

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supersonic
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Re: Changing from 12-36 to 11-32 : Chain or mech adjustment

Postby supersonic » Wed Nov 07, 2012 17:59 pm

Remeasure the chain. Though ideally you should use a new one.

You can't go 39/36 front.

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tbikeradar
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Re: Changing from 12-36 to 11-32 : Chain or mech adjustment

Postby tbikeradar » Wed Nov 07, 2012 18:12 pm

Hi, I meant 39/26 up front.

Ok I will re-measure. Chain is hardly used so should not impact on wear.

thanks Sonic

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The Rookie
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Re: Changing from 12-36 to 11-32 : Chain or mech adjustment

Postby The Rookie » Wed Nov 07, 2012 18:16 pm

Rear mech will need some adjustment, indexing may need tweaking (unlikely) but you will need to adjust the b-screw to move the upper jockey closer to the largest sprocket.

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tbikeradar
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Re: Changing from 12-36 to 11-32 : Chain or mech adjustment

Postby tbikeradar » Thu Nov 08, 2012 00:58 am

Thanks for all your advice, one quick last question...

Is it ok to use my existing Sram XX long cage mech with this setup:

39/26 front and 11-32 rear?

Thanks

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The Rookie
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Re: Changing from 12-36 to 11-32 : Chain or mech adjustment

Postby The Rookie » Thu Nov 08, 2012 06:06 am

Yes..... Although a medium would be slightly better in terms of lower chain run angle and ground clearance.


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