It weighs a mere 170g (Short & Shallow drops, 44cm), but its stiff enough to grunt over the steepest grades & smooth enough for all-day comfort, thanks to Zipps VCLC vibration damping technology, which is included in all their bars. Features such as dual cable routing grooves & a gradual taper from 31.8mm at the clamp to 24.2mm at the bends contribute to the SLs classic looks. Please note: Zipp handlebar widths are measured from the centre to centre at the brake perch part of the bar, NOT at the bar end part of the bar.