i know someone said this to me about tyres but can not find it

[nivlacf1]

indoor track small short and sharp, 28s back and 24s front or 24s front and 28s back? would usually run 28s all round but last week at this club till summer break so not going to be investing in new tires till after the summer break(for indoor anyway) outdoor running about to get more concentration after this weeks indoor race,thanks guys your all always a good help,