4 piece bars are badass and popular, so we expanded our Crowbar Handlebar range. Now available in 2 versions: The Crowbar SG version uses a straight gauge tubing set that we like to call Street Gauge. The Featherweight uses our 13B tubing profile, varying in thickness throughout, allowing weight savings while still retaining strength.. Both bars come with our proprietary tear shape crossbar, and 100% post-weld heat treatment for durability. Featherweight: lightweight, tech, performance driven. SG: street tough , a bit heavier, but lighter on the wallet.