Blank generation xl bmx wheelsetblank's generation xl bmx wheelset is a serious wheelset that won't break the bank'. '.strtoupper('f')eaturing a double skin rim for enhanced strength and durability, blank also opted for a low profile design which gives this wheelset a classic cut'. '.strtoupper('w')ith 6 pawls and 72 clicks, it's pretty loud too'. '.strtoupper('f')eaturesfront rim new blank generation xl double skin rim low profile 15.5mm design 40mm widefront hub alloy fully sealed 10mm female crmo axle and bolts 36 holerear rim new blank generation xl double skin rim low profile 15.5mm design 40mm widerear hub alloy fully sealed crmo axle 4 sealed bearings 6 pawls 72 clicks 36 hole 9t cassettespokes 36 front and rearbuy blank wheels tyres from chain reaction cycles, the world's largest online bike store.