I just wanted to let the word out that White Bros. rev boxes for the 400ex have had starting problems. This is a well know fact. There are rev boxes out there that do not have starting problems and I would suggest buying them instead so your bike will start. It sounds like they may have changed them, which is great, but who do you want to trust with your next rev box purchase? In my experience, and I have tried a few, the electrix has worked excellent, always starts and revs higher than the old White bros. rev boxes.

 

Do you have a link for the Electrex?

 

www.electrexusa.com