Q. My bike run on 33 kmph in 5th gear without acceleration.?

The Apache RTR 160 4V comes equipped with Glide Through Traffic function, which is essentially a low-speed assist. It helps the bike crawl without using the throttle, just by modulating the clutch. It will be handy in riding through traffic effortlessly. It can work up to 7kmph in first gear, 23kmph in second, and 17kmph in the third gear.

Get you throttle wire checked, maybe it is too tight. Also check the rev meter when idle. On idle rev meter should be around 2000 RPM.

My bike has same issue ..now you fix the problem or not?