Outdoors

Huge airs, enormous jumps and enormous tricks need MTB Forks which can take some punishment forks not designed for this reason are responsible to be damaged or worse break ; causing significant injury to a rider.  

A dirt jump ( DJ ) bike will typically be a hardtail and front suspension, although some riders do still favor stiff forks.  Dirt jump forks will have little travel of 80-100mm and are normally coil sprung as well as being much heavier due to the increased strength than those designed for other trail bicycle disciplines.  

If you know anything about dirt jumping you can know the name Marzocchi potentially the best known and most generally used make of forks on dirt jump bikes with their infamous dirt jumper range. 

The dirt jumper range starts with the entry level DJ3 fork.  It is a quick-release fork, but the simple forged lowers are very well proven re slam proofing.  The coil-sprung internals get a simple but effective bottom out damper for slam control.  They can also be stiffened up for emergency-only movement ( if that’s's what you are after ) by charging the auxiliary air spring. 
The range then moves up to the Dirt Jumper one & two models, which, in the newly asserted 2010 models will utilise the updated Open Bath RV damper, which features externally adjustable rebound damping.  The Dirt Jumper one & two models feature a coil spring and a low pressure pre-load system.  

Weighing in at only 2240g for an open bath, coil sprung fork the DJ1 weighs a massive 355g less than the 2009 DJ1 while skyrocketing strength by thirty percent.  

If you can’t spring the £190 £500 ( $200 – $1000 ) the dirt jumper range can cost may wish to instead consider a rigid fork.  The advantages are not only cost, stiff forks such as the Charge Nozzle will not only cost less but will also weight a load less than suspension forks meaning you are able to save extra weight that may help you with getting some of those technical tricks nailed.