Hi,
what combination of rear cog and chain ring does the best for a 5.5 metre rollout (U13)? (I need to place an order for sons Track bike).
cheers,
Tech Question
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Re: Tech Question
Postby bigfriendlyvegan » Tue Mar 06, 2012 1:22 pm
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Re: Tech Question
Postby brentono » Wed Mar 07, 2012 5:40 pm
Think 49x19 is close.
A great training gear for men and boys.
A great training gear for men and boys.
Lone Rider- I rode on the long, dark road... before I danced under the lights.
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Re: Tech Question - Rollout U13
Postby JB » Thu Mar 08, 2012 11:55 am
Since learnt that for a 5.5 roll-out Cycling Australia specifies sprocket 18 and Chain Ring 45
http://www.cycling.org.au/?Page=9497
Cheers
http://www.cycling.org.au/?Page=9497
Cheers
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Re: Tech Question
Postby brentono » Sat Mar 10, 2012 11:54 am
Many Clubs quote 42x16 for their U13 rollout (>5.5)
Lone Rider- I rode on the long, dark road... before I danced under the lights.
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Re: Tech Question
Postby JB » Sat Mar 10, 2012 1:07 pm
they risk getting caught when roll-outs are checked at race time...not worth it.brentono wrote:Many Clubs quote 42x16 for their U13 rollout (>5.5)
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Re: Tech Question
Postby brawlo » Sat Mar 10, 2012 7:32 pm
Nothing worse for your little one than to have their moment of glory taken away from them!
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Re: Tech Question
Postby brentono » Sun Mar 11, 2012 4:17 pm
Nothing worse than taking the little man out, and not being able to give him a run.
Lone Rider- I rode on the long, dark road... before I danced under the lights.
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Re: Tech Question
Postby bigfriendlyvegan » Mon Mar 12, 2012 11:07 am
And it's even worse when your son can't race (boom, tish)brentono wrote:Nothing worse than taking the little man out, and not being able to give him a run.
I was going to go with - "That's what she said", but think it's a bit overused.
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Re: Tech Question
Postby bp2 » Sat Mar 31, 2012 1:32 am
with 700c x 23 rear wheel,
or height of wheel at 674mm
49 x 19 = 5.46m
45 x 18 = 5.29m
42 x 16 = 5.55m
44 x 17 = 5.48m
or height of wheel at 674mm
49 x 19 = 5.46m
45 x 18 = 5.29m
42 x 16 = 5.55m
44 x 17 = 5.48m
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