Manitou iva kit for doradothe manitou iva kit for dorado forks brings world cup calibre tuning to all dorado models to help you get the most from your forks features internal volume adjust iva allows customized ramp up for specific conditionsmove self contained spacers up or down to change piston volume without losing partsinfinite rate tune irt allows independent mid stroke and end stroke for better bottom out controltsr push button pressure build up relief after long demanding descentsred