honestly if u want a keirin frame. just go buy one. the difference between a ______ or a ______ NJS frame is going to be negligible to you. just buy a kilo tt

ps. and someone sed it already but you are going to be hard pressed to find a keirin frame in 59cm , and even if u do u will either.
1. not be able to afford it
2. be fighting off hundreds of tall homies just to buy it