Gear Ratios - anyon...
 

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[Closed] Gear Ratios - anyone running 1x9 with a 42t front ring?

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pretty flat round me, want some more speed on the tarmac sections and thinking of changing from 32t to 42t on the front.

anyone running anything similar?


 
Posted : 25/01/2011 4:33 pm
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Thats one heck of a jump from a 32 to a 42, i'd try something like a 36 first if you have any ambitions of going upwards at any point - i know you said its flat where you live but still...


 
Posted : 25/01/2011 4:39 pm
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yeah, but i have a 42t crankset in the spares box...
worth a try i think.


 
Posted : 25/01/2011 4:41 pm
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Surely if people can get up stuff on SS of 2:1 (eg 32/16) then should be doable on 42/32 if you have no major hills?


 
Posted : 25/01/2011 4:41 pm
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42:16 is a farly std ratio for road fixed training IIRC.


 
Posted : 25/01/2011 5:11 pm
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I run a 41 ring on my commuter with 12-25 cassette on the back and it *just* clears the frame in the middle ring position. The second the BB goes though I'm going to chew right through the frame....

if you have the bits spare give it a go, what harm can it do?


 
Posted : 25/01/2011 5:21 pm
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Agreed, it's a very big gear but if you have the ring just stick it on for a bit and see if you like it/have big enough legs for it.


 
Posted : 25/01/2011 5:23 pm
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32:16 on a 29er is 58inches
32:24 is 38.7

42:21 is 58
42:32 is 38.1 (lowest)

so i basically lose the equiv of the top two/three ratios on a 32t...


 
Posted : 25/01/2011 5:42 pm
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My mate who is admittedly a beast rode the North Downs with a 44 front and 11-25 rear for a while. He now rides SS which is harder.


 
Posted : 25/01/2011 5:45 pm
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just built up my yeti 575 with single up front. I went for a 36, with an 11-36 rear. It has all the gears I need for trail riding, although I do find road sections are a bit slower than they could be. My area is afan/ glyncorwg margam area, so pretty hilly. I haven't been caught out yet. As has been mentioned it is easier than single speed.
I think If iwas going to go 2X10 I'd put on a 32/42 front with 11-34 rear.


 
Posted : 25/01/2011 6:33 pm

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