Primo vs freemix freecoaster rear bmx wheelthis wheel features the primo freemix hub built into the primo vs rim using primo forged spokes the freemix hub uses high quality khe internals allowing the clutch to be adjusted internally should you like to fine tune the performance combined with the primo vs rim this build creates a sturdy and reliable wheel that performs to the highest level featuresmaterial 6061 aluminium hub 7071 aluminium rimaxle 14mmspokes forgedweight 1360gbuy pri