Basically this:


All accessories (lights, bells, reflectors, bottle cages, etc...) must be removed. Computers are allowed. You must have plugs in your handlebars.

The bike must be relatively clean in and good working order.

Generally speaking, conversions probably won't be allowed. But, that's really up to your track director. It's his job to create a safe environment. Conversions usually have lower bottom brackets than standard track bikes. This isn't a problem for shallow tracks, but can be a problem for steep ones.