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For the 20 inch inner tube, what width do you need? 1 1/8, 1.5, 1.75? I know I could measure but it is easier to ask.

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andresmuro said:
For the 20 inch inner tube, what width do you need? 1 1/8, 1.5, 1.75? I know I could measure but it is easier to ask.

Thanks.
I don't think it matters. You slice the tube open and trim most of it away anyways.
 

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Whatever's cheaper. I used 1.125 because that's what my LBS stocks (this was for a sun mtx 33). A wider tube can't hurt.
 
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