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Slowtwitch Forums: Triathlon Forum:
Question about USAT bikes rule and IM...

aztoaster

Jan 1, 05 12:28

Post #1 of 8 (333 views)

Question about USAT bikes rule and IM...	Can't Post

I'll be competing in IMAZ and was curious if the race officials actually measure everyones bike to see if it conforms to the rules as defined in the USAT. I've got a frame and fork combo I'd like to sue but the only problem is its too long in one measurement (the "front-to-center" distance). So for those who have done a IM, did they measure your bike?

It's off by more than an inch.

what do ya think???

here's the rule:

[quote](d) The "front-to-center" distance, which is defined as the distance between a vertical line passing through the center of the chain wheel axle and a vertical line passing through the center of the front axle, must measure not less than 54 centimeters and no more than 65 centimeters, except that in the case of bicycles for taller participants (where the distance between the center of the chain wheel axle and the top of the saddle is greater than 80 centimeters), the front-to-center distance cannot exceed 68 centimeters and, in the case of bicycles for shorter cyclists (where the distance between the center of the chain wheel axle and the top of the saddle is less than 71 centimeters), the front-to-center distance cannot be less than 50 centimeters. Applicability of the two foregoing exceptions is determined by measuring from a point on top of the saddle which is 14 centimeters behind the front most point of the saddle.[/quote]

desert dude

Jan 1, 05 13:09

Post #2 of 8 (312 views)

Re: Question about USAT bikes rule and IM... [aztoaster] [In reply to]	Can't Post

I'll bet you $50 that you can ride it w/out USAT caring.

Brian Stover
http://accelerate3.com

(This post was edited by desert dude on Jan 1, 05 13:09)

Ashburn

Jan 1, 05 16:12

Post #3 of 8 (241 views)

Re: Question about USAT bikes rule and IM... [aztoaster] [In reply to]	Can't Post

OK -- I just gotta know what sort of frame/fork combo goes over 65cm (or 68cm in big sizes). That's a slack headtube, with a long-rake fork, on a big frame.

What is it you've got?

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Khai

Jan 1, 05 18:04

Post #4 of 8 (201 views)

Re: Question about USAT bikes rule and IM... [aztoaster] [In reply to]	Can't Post

My bet is that you'd get away with it, but if you do get caught/tell you'll be branded a cheater and people will be calling for a lifetime ban. ;)

Seriously though - what are you running?

<If you're gonna be dumb, you gotta be tough>
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aztoaster

Jan 1, 05 19:38

Post #5 of 8 (171 views)

Re: Question about USAT bikes rule and IM... [Ashburn] [In reply to]	Can't Post

[reply]OK -- I just gotta know what sort of frame/fork combo goes over 65cm (or 68cm in big sizes). That's a slack headtube, with a long-rake fork, on a big frame.

What is it you've got?[/reply]

Yes, you're right. Reason being is it's a 29" mtn bike frame. Don't ask, I'm weird. I re-measure more precisely and it's not far off actually. It's more like a .5 inch. Hard to measure as the headset isn't pressed to the fork yet.

Thanks for your input guys...we'll see how it goes :)

(This post was edited by aztoaster on Jan 1, 05 19:42)

eric

Jan 1, 05 19:44

Post #6 of 8 (165 views)

Re: Question about USAT bikes rule and IM... [aztoaster] [In reply to]	Can't Post

ok you're busted now hehehe

[that is if I ever even think to remember to bring a tape measure with me]
-----------------------------------------------------------------------------------------------

"on your Left"

kenwil

Jan 2, 05 7:27

Post #7 of 8 (120 views)

Re: Question about USAT bikes rule and IM... [aztoaster] [In reply to]	Can't Post

Is it this one?

Ken

Slowman

Jan 2, 05 7:35

Post #8 of 8 (110 views)

Re: Question about USAT bikes rule and IM... [aztoaster] [In reply to]	Can't Post

the rule is now changed. the new "morphological exception" states that your front center can be either 65cm or 87.5% of your saddle height, whatever is greater. measure from the BB to the top of the saddle, midpoint of the saddle.

Dan Empfield
aka Slowman