what sprocket for 1/4mile

[los91]

i have an 05 busa 4 up rear sprocket i went 9.75 at 139.89 in 1/4mile if i go down 1 in the front will my time be better

 

[teamorion22]

your launch could be better, or worse. they say going down one in front is the same as going up 3 or 4 in there rear sprocket. reguardless, if you go down one in front, i think it would take some getting used to prior to hitting the track.

i say go for it and post up what you think

 

[raydog]

What is done to your engine? How much do you weigh? Stock with +4 rear spkt @ 9.75 is incredible!