Custom Bastion SuperleggeraThe Bastion Superleggera might look closer than a kissing cousin to the brands Road model, but behind the paint, it differs in a couple of ways. Not only does the Superleggera have a smaller diameter downtube, but it also features a higher modulus carbon fibre construction small details that shave some 100150g off the weight when lined up alongside the Road and make an already sprightly frame even more lively. Indeed, Bastion recommends the