The Javelin cassette features a CNC machined 7075 aluminium shell, a 1 piece 9T driver with Polymer Bushings and a heat treated Crmo 14mm hollow axle with colour matched wheel nuts. The Javelin is laced to the 7005 aluminum Animal RS rim with welded seam, sidewalls have a short vertical section enough for a braking surface, then an angled portion, spoke holes are also drilled for traditional lacing. ###section### Product Specs WHEEL SIZE:20" HUB:20" AXLE:Crmo female DRIVE SIDE:Left Side Drive RIM:Animal RS SPOKES:14 Gauge NIPPLES:TBC WEIGHT:TBC