Will these work on my 400?

[Zakradu398]

This here? http://www.motosport.com/atv/EASTON-EXP-HANDLEBAR-WITH-UNIVERSAL-78-BAR-MOUNT-KIT

It says it fits but I'm not so sure..

[CJM]

Mount kit might not, but the bars will fit fine.

[on the rocks]

with the bigger bar center your going to want the mounts to work in your stock risers. i think they should though.

[riotact]

They bolt up to the stock risers so I would say that they'll fit just like the 1 1/8" adapters do.