250r four trx

[89250R4trx]

what is the best pipe for bottom end power and should i get a bigger axle instead of stock

[sly400ex]

ESR TRX5, stock axle is fairly strong too.....unless you want wider!

[Zero Z400]

Along with what pipe, what is the best reeds/cage?


Later

[XANDADA]

For bottom end I like the stock cr250r reed cage assembly and its cheap. I thought it was better than the Boyesen Rad valve.

[sly400ex]

ESR or 250R reed valve......both dominant!!!!:D