About Yeti ARC R2 Aluminum Riser Bar: This handlebar is ideal for bike racers on a budget. The Yeti ARC R2 proportions and geometry are dialed in for optimal comfort with a 3 degree upsweep and a 9 degree backsweep. Made of aluminum, it weighs in at just 213 grams. That's light and strong. This is an incredible deal on a great lightweight and long-lasting aluminum riser bar from Yeti Cycles.