some ??'s about hybrids, and frames for them

[800screws]

how does a jrd hybrid chasis compare to a herrmann chasis? if they are both 250r geometry than what's the difference?

[deathman53]

a jrd frame can accept a 250r, yzf 400, 426, 450, crf450r and some say a ktm 520 motor with use of different motor mounts. thats the main difference,