Ha.... must be iagree damm chiong type with stock tyre and ramm to 170 oh! i go to 170 only after I replace my stock suspension kit to impul one lor!! safety 1st and know yr machine welll 
I agree with u Indignant that with stock suspension yr car definitely float above 140, now w my impul suspension kit even at 170 u won't feel at all...
hi ultramax & all,
oh, not really cheong type, it is just the power with CVT, i oni accelerate as per normal and on flatter road & road is unblock then it can cheong up to 170kmh 180kmh without my knowing. when i beep at the meter then i was shocked, quickly reduce speed. that's the story.
serious? above 140kmh will feel float? i have confident with my ride, therefore, when i feel comfortable, i let it go as fast as it can. i am always paying attention to my ride when i drive off daily. if it has abit of unstable (based on my personal feeling and senses) then i will not speed. safety come first. compare with my 1998's Proton Wira, that wira aso can speed up to 170kmh when it was new, now it is abt 10yrs old, i dare not speed already, i thk at most 100kmh to 110kmh in NSHW is not a problem, but i hardly drive this Wira after i got my Latio last yr Oct07.
in short, the 'feeling' for our lover (the car, in this scenario) is very important. when i have confident with her, i dare to lut otherwise dun lut. just like when i got this ride oct2007, i dare not speed, reasons:
1) car still new
2) engine still a virgin. very new. so must let it has some lubricating effects first before drive faster otherwise its life might be shorten
3) i don't know the condition of this new lover and the body and the engine, don't know stable or not. so, cheong fast is not advisable
4) after 1000km servicing (1st servicing @ TCM), i then dare to speed up to 110kmh to 130kmh (coz i always travel to msia, once every 2wk, so speed is impt to determine how long i can reach the destination...)
5) after the confident has been built up with the new lover, we can cheong BUT still need to detect and sense and FEEL her from time to time.... as it is still *new*. now is 24000km already.
6) alot of things to take into consideration.... etc.etc...
"FEEL" the ride, before we speed! you agree?
how much do u pay for your Impul suspension? Really so good?
regards.