@2468 - yes, that's correct, 2 versions each for the RX & KB. Yes, KB did not have disk brakes back then.
Yes, the Shaolin was had a 140cc engine producing 12 BHP & came with a 5 gear transmission.
Desiboy is correct, 2 strokes are extinct in India now. The last available 2 stroke in India was this
^^ the TVS Max 100 R, a bare basic bike which retailed for around 40K rupees. I remember it was on sale till about 2002.
I guess we'll have to race the RX & YB 100 to find which is faster