The zipp service course 70 ergo handlebars are produced using zipp39s proprietary ztl 71 alloy and intricate internal butting processes to achieve a weight of 285g with superior strength and rigidity it features a classic look with round cross sections throughout and is available in the same comfortable short and shallow or traditional bend shapes as our carbon bars what39s more the drops are angled outward by 2 degrees to reduce wrist strain the zipp service course ergo handlebars are