Ns bikes district riser barsa perfect choice for dirt, street and park riders that want to go big on every ride, the district riser bars put you in the perfect riding position for control. Whether youre taking on huge jumps at the trails or pulling off your best tricks on the street, their relaxed geometry with 10deg of backsweep is the ideal pairing for bikes with a low front end. Ns bikes' has also constructed them high end japanese chromoly crmo to ensure they're built to last.the district bar fits both bmx and mountain bike mtb stems as they have a 22.2mm clamp size and shims included to fit the standard 25.4mm size.features material heat treated 4130 chromoly steel crmo stem clamp compatibility 22.2mm includes shims for 25.4mm width 762mmrise 86mm backsweep 10°upsweep 4°weight 550gbuy ns bikes components from chain reaction cycles, the world's largest online bike store.