Handle Bars Advise please

AndrewJay Posts: 8
edited June 2010 in MTB buying advice
i have a kona stuff 2005

it has Truvativ Hussefelt Riser Bars 40mm rise i think, i wana change them i was looking at the sunline LTD bars but they are 19mm rise, will this make much diffence, i use it for dirt jumping/street mainly should i get a higher rised bar like 50mm or some thing