Time trial on fixed

Magnier · E, Silver Joined: 11 Nov 2008 Posts: 584 Location: Bristol

Looking at doing some TT's on fixed as pursuit prep.

Any advice on gearing etc, mainly 10's i think.

PNuT · Moderator Joined: 12 Sep 2002 Posts: 18512

between 100 & 110" obviously course dependent
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Tucker · Posted: Tue Aug 11, 2009 5:37 am Post subject: Re: Time trial on fixie

Bob J · Posted: Tue Aug 11, 2009 6:48 am Post subject:

It depends on the size of the track and how tight the bends are, tighter the track the smaller gear normally. As a guide 50 x 15 is a good start point, but I would have have thought no higher than 52 x 15 (92 / 93 inches)

Tucker's post is a good idea but sometimes the gear you use on the road doesn't always transfer to the track in my humble opinion Wink

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Bob J · Posted: Tue Aug 11, 2009 6:52 am Post subject:

Sorry, just re-read the original post, my answer was relating to the pursuit gear, on the road, for 10's, depends on your normal cadence, try Tucker's route!
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monk · Div 1 Pro Joined: 16 Mar 2005 Posts: 6589

you'd be well advised to use your 3-4km pursuit gear magnier.

it tends to work out perfect by the time you've gone the extra disatance but reduced your rpm.

testers might ride 100"+ but they'd similar try to ride the same gear in pursuits.

for 25s and longer i might take a c'ring tooth off. e.g. 49x14 instead of 50x14. main reason would be so as not to lose leg speed/souplesse.

monk · Div 1 Pro Joined: 16 Mar 2005 Posts: 6589

ps: for magnier I'd suggest a pursuit gear around 53x15,50x14.

Chrissylaa · Posted: Thu Sep 17, 2009 5:34 pm Post subject: 72"

You could try 72 inches and try to beat 56 minutes 30 seconds for a 25 like Tony Doyle!!

Legs · Posted: Thu Sep 17, 2009 8:54 pm Post subject:

The late Zak Carr did a mid-53 on 72" restricted gears (not fixed).
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esafosfina · Posted: Sat Sep 19, 2009 3:26 am Post subject:

Why bother? Just ride your road or TT bike and if you must restrict yourself (although I don't know why...) just don't change gear! Never used to use track bike on the road, for the same reason I never used a road bike on the track! For a lark I'd ride club 10s on the small ring, or ride a 25 on no bigger than 53x15... Still good for cadence work. Up to you I guess old mate... Wink

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TBK · Posted: Sat Sep 19, 2009 6:46 pm Post subject:

esafosfina · Posted: Sat Sep 19, 2009 11:53 pm Post subject:

Davey C · Div 2 Pro Joined: 01 Jun 2008 Posts: 5745

I've done a few '10's on my track bike this year and have found that a 90 is a fairly happy medium. I'm more of a spinner than a big gear masher however, so might have to take that into account!
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Magnier · E, Silver Joined: 11 Nov 2008 Posts: 584 Location: Bristol

90!!!! For me i tried 96" and it was still too small.

Roy Gardiner · Posted: Tue Oct 06, 2009 5:42 pm Post subject:

Davey C · Div 2 Pro Joined: 01 Jun 2008 Posts: 5745

Hans Datdodishes · Posted: Wed Oct 07, 2009 8:38 am Post subject:

Steve McGinty · Posted: Wed Oct 07, 2009 9:16 am Post subject:

Roy Gardiner · Posted: Wed Oct 07, 2009 9:30 am Post subject:

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