Garcia

1) I prefer and use 165 crank arms, but agree not to go over 170 for general track racing.

2) The rental GT bikes have the 14/15t cogs with a 46t ring, i.e. 88.71 and 82.8 gear inches, which is the most common bike use for the Track Development Classes and racing, but we also have some Fuji bikes with only a 16t cog and with 48t ring, i.e. 81 gear inch. For guys the have been riding quit a bit but not road racing, I would recommend around an 86 gear inch. I've been known to an 86 to start the season when it's cold.

Garcia

________________________________
From: Mike Murray
To: Chip Slöan ; obra@list.obra.org
Sent: Friday, April 3, 2009 10:23:05 PM
Subject: Re: [OBRA Chat] Track bike advice

Message
1) Depends on the event. You could run 180 or more for pursuit. I would not run longer than 170 for general track racing at Alpenrose.

2) The rental bikes have 46T rings and 14 and 15t cogs, i.e. 88.7 and 82.8 gear inches. Generally for guys somewhere between those 2 gears is a good gear to start track racing.


Mike Murray
-----Original Message-----
From: obra-bounces@list.obra.org [mailto:obra-bounces@list.obra.org] On Behalf Of Chip Slöan
Sent: Friday, April 03, 2009 19:53 PM
To: Obra
Subject: [OBRA Chat] Track bike advice

So I'm building up my very first track bike to hit some Wednesdays and get going on the track. 2 Questions:

1) Crank length. How long can I go? I run 175s on the road bike, but it seems most run shorter cranks.

2) What gear ratios are good to start with? Like what are on the rental bikes?

Thanks,

Chip