The easton haven carbon riser lo handlebar features exclusive taperwall technology with an enhanced composite material and new shape for 2011 to form the ultimate lightweight yet strong all mountain riser handlebar the easton haven carbon handlebars use taperwall technology to make them strong and durable but by upgrading to carbon instead of the aluminium easton haven handlebars it shaves off 100g this riser handlebar from easton is a full 711mm in length with a 9