Colony roaster grande bmx barscolonys roaster grande bmx bars are part of the brandon van dulken signature range constructed of full 4130 post heat treated crmo the back sweep is 10 5 with 2 of upsweep a larger diameter cross bar with higher placement on the bars provides extra strength features height 95 width 29 0 full 4130 crmo post heat treated bars 10 5 of backsweep with 2 of upsweep multi butted tubing with thicker tubing on grip bend at cross bar gives extra strength large