Talk:Track bicycle

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[edit] Bottom bracket height

"higher bottom bracket for additional cornering clearance"

I've often heard this, but have never heard how much higher. All I can find in UCI regulations (http://www.uci.ch/imgArchive/Rules/1gene-E.pdf) is:

Technical specifications

Except where stated to the contrary, the following technical specifications shall apply to bicycles used in road, track and cyclo-cross racing.

1.3.015 The distance between the bottom bracket spindle and the ground shall be between 24 cm minimum and maximum 30 cm.

Cannondale (http://www.cannondale.com/bikes/03/geo-40.html) lists the bottom bracket height for their track bike is 28.2 cm.

Fuji (http://www.fujibikes.com/geometry.asp?bike_id=17) lists the bottom bracket height for their track bike is 29.2 cm.

Others, such as Bianchi and Surly, just say "track legal".

I get the general "heigher for pedal clearance with a fixed gear", but it would seem also to depend on crank arm length. Does anyone know what the real requirement is? How would a particular bicycle at a track event be found to be legal or illegal?-AndrewDressel 00:03, 20 October 2007 (UTC)

Crank arm lenth affects the leavrage on the gear. So if you have a long crank arm it has to be mounted high enough to clear corners. I belive their is a math matical formula but I do not know it. I personally use 65 size crank arms and a bottom bracket that messures 11 and 3/4" from the ground to center of allen attaching crank arms. —Preceding unsigned comment added by Mrmike23 (talk • contribs) 18:12, 9 December 2007 (UTC)

[edit] Distinct from fixed-gear

This article does not do enough to distinguish a track bike from a fixie. It should be made clear that a track bike is a sub-set of fixie. There ought also to be a section on NJS kierin track bikes.Buffalo Bill talk to me 08:26, 11 December 2007 (UTC)