Crf50 shock

[MyMOTORBOY]

Hey guys and girls
I am new to minibikes i got a 2012 crf50 i want to make it sit higher under a low budget i was looking at these. I would like to know how they work and are they good ?http://www.ebay.com/itm/shock-extender-pit-bike-purple-crf50-ttr50-ttr90-klx110-drz110-/330840737233

 

[neugz]

do you already have stiffer springs?? im 87 kilos and it rides perfect i dont do huge jumps though.running stiffer springs gives and an extra inch higher aswell?

 

[MyMOTORBOY]

where do you buy stiffer spring?