The dmr swarm 254mm stem cnc machined stem with matching stem cap 55mm extension 254mm bar clamp our new dmr colour components are cnc machined forged or a combination of both for the best possible combination of strength weight price and surface finish the surface finish is the critical element allowing the anodizing to really shine out dmr colour components are designed to match our alloy wingbars dmr nutz and hubs fit the seat clamp or stem cap for a subtle touch or go all