Engine and performance. The biggest pluse point for the RX100 was its performance. it had a 98cc, 2 stroke engine, being air cooled it produce 11 bhp at 7500 rpm and 10.39 nm at 6500rpm . the power production of the bike was massive and it was tagged as the best performer in the 100 cc segment at its time the main diffrents between the 2 stork engine and 4 stork engine is how they deliver airfule mixture to the cylinder