ah yes the H100S an awesome bike to keep, it has a lovely pickup and can beat the honda cg 125 easily provided u have the Original Cyliner without sleeve and carb and cylincer and ofcource overall engine. Petrol average amazing. The Balancer Rod also plays an imp part in the H100S, if u remove that the bike starts to vibrate a lot at high speeds. i kept H100S for 2 year A2Z with original parts even the assembly, tank side covers, indicators etc, i even had the oil pump runnin of it. i sold it cause of the mechanics here, not everyone here in karachi knows how to fix an H100S, most mechanics simply remove the balance just cause they dont know how to fix it.
Max top speed achived on the H100S was 125km. the only con in the H100S is that the engine does not last that long,the balancer goes first and the bike does not have that good grip as it is very light as compared to other bikes. I got my engine overhauled 3 times in 2 years, but its a fun bike to keep.