www.zxrworld.co.uk

Hi there I have a zxr 400l sp race bike . Question is sp gearbox or fit standard l one ???

SP close ratio box...............everytime

I find the sp very difficult to get a decent start.
so for me on short races and short circuit stuff id say std box. unless you can launch the bloody thing.

same here i cant get a good start with my SP box but i do prefer it over standard

i asked the same question to my rider rep when i started out, he said the same think about not being able to get it off the line, standard box for circuit racing