1X10 ratios.
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PJM



Joined: 15 Oct 2012
Posts: 96
Location: Sunk to the nuts

PostPosted: Mon Jul 20, 2015 1:39 am    Post subject: 1X10 ratios. Reply with quote

Trying to decide whether to convert my Scott Spark to a 1x10, the only time I ever use the large chain-ring is on a road section linking 2 off road trails, so I can't see me missing the top end that my current 38/24T and 11-36T set-up gives me, but I don't want to lose climbing ability (go to the peak district regularly). So I was thinking of fitting a 30T chainring and either a 40 or 42T expander rear cog, has anyone got this or similar set-up got any opinions for me?
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ryansam



Joined: 30 Oct 2008
Posts: 1117
Location: Middlesbrough

PostPosted: Mon Jul 20, 2015 8:37 am    Post subject: Reply with quote

If your goin 30t then try it with the 11-36 first,you might be ok with that (l'm running that and its been fine).If your thinking of a expander then go 32 or even 34 on the front.
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stu8975



Joined: 20 Mar 2010
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Location: Sunderland

PostPosted: Mon Jul 20, 2015 1:47 pm    Post subject: Reply with quote

Your gear ratio(s) current and options..Gear inches is how far the wheel moves per one revolution of the crank in that gear.

Will help you decide what to go for.



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PJM



Joined: 15 Oct 2012
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Location: Sunk to the nuts

PostPosted: Mon Jul 20, 2015 7:29 pm    Post subject: Reply with quote

Thanks both, chart was great info, cheers. Definitely thinking 30T front, just having a think about the rear.
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Nik Gnashers



Joined: 30 Dec 2014
Posts: 265
Location: Lincoln

PostPosted: Sun Aug 16, 2015 1:03 pm    Post subject: Reply with quote

I find 34t chainring with an 11-36 cassette about right for every trail centre.
I still never use the granny 36, or the next one either (think its a 34).
I have a 38t chainring ready for when I get fitter !
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Titan Fury



Joined: 19 Dec 2013
Posts: 298
Location: UK

PostPosted: Sun Aug 30, 2015 10:40 pm    Post subject: Reply with quote

11-36 rear with a 30t chain ring, start with that and give it a few weeks. You'll find for the most part its spot on, but there will be some climbs (depending where you live) that will test your legs. That's a good thing, it'll get you fitter Smile Then when your feeling a bit stronger in the legs try a 32t chain ring.

When I went to a 32t I found I needed a 40t extender on the back for some of the hills on Dartmoor. However I ride a 29er, so that alters the effective gearing a bit.
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MPX309



Joined: 17 Jul 2014
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PostPosted: Mon Aug 31, 2015 12:33 am    Post subject: Reply with quote

Nik Gnashers wrote:
I find 34t chainring with an 11-36 cassette about right for every trail centre.
I still never use the granny 36, or the next one either (think its a 34).
I have a 38t chainring ready for when I get fitter !


You must have legs of steel.

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Nik Gnashers



Joined: 30 Dec 2014
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PostPosted: Mon Aug 31, 2015 9:18 am    Post subject: Reply with quote

MPX309 wrote:
Nik Gnashers wrote:
I find 34t chainring with an 11-36 cassette about right for every trail centre.
I still never use the granny 36, or the next one either (think its a 34).
I have a 38t chainring ready for when I get fitter !


You must have legs of steel.


Very Happy
Nope I'm just an average old man (46).
I think technique plays a good part too. On short climbs I always sprint just before, which gives you that extra momentum to make it.
On longer climbs, I try to sit back on the seat more, and dip my heels down which seems to provide a bit more power AND endurance, then just concentrate on breathing.
There is nowhere on Dalby red route that gives me any issues climbing (apart from the very start from the visitor centre, where there is a short rocky section halfway up the initial climb, man that's impossible lol), with 34t chainring, and 11-36 cassette, and I ride a 29'er.
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