Suzuki bikes are much more capable then we mostly think about them. I have experienced this in my last two years (since I own one). The only thing is how perfectly they are tuned and for what purpose. In its full glory these machines are too good and you just enjoy with utmost happiness.
Honestly speaking, I can easily attain a speed of 100~105km/h on my Sprinter. And let you know that (to reach this speed) I do not drag my bike from the first gear. Mostly I am riding peacefully at 60km/h in the 4th gear and when I saw a vacant, wide with no intersection road I just twist gradually the throttle to its limits and there you go.
If I can gain this speed this way then I am very much sure if I drag it from the very first gear I can achieve much more speed because of the greater momentum.
Secondly, just to mention here and I would never never recommend it to do it. On 2 occasions I abused my bike and gained a speed of 65~68km/h in second gear in just a span of 3~5 seconds. I got frustrated, hut gaye thi buri tareqay say due to traffic jam and chingi rickshaws ki jahalat aur road blocking say. I always discourage this and cursed me why I did this.
But one thing I got to know that Sprinter has great acceleration, powerful, grippy, rough n tough and yet economical.
Please see in above I never ever made a comparsion its just my love with my ride. How deeply I feel