Will 400ex front caliper and lines fit on a 300ex?

[volks64]

Trying to put together a bigger bike for my son. I am trying to find out if 400ex brake lines and master cylinder will fit the 300ex chassis. Any help would be great.

[miniquaddad90]

Yes, both will fit, lines are a tad long though

[volks64]

Thanks for the response. I plan to go longer arms next year anyways so that will help later on.