The shimano dura ace 9010 brake calliper 49 drop direct mount features an 11mm lower profile calliper design improving aerodynamic form shimano dura ace 9010 brake calliper features slr ev brand new slr with 2 axle symmetric brake caliper front direct fork mount rear direct chain stay mount 11mm lower profile caliper design improves aerodynamic form on front caliper weight 157g front 150g rear