The new TRP T925 aero brake set is designed to reduce drag for maximum aerodynamic efficiency. The T925 brakes features optimized front and rear calipers which allow the front to be mounted behind the fork out of the wind for superior aero efficiency. The unique aero-v cold forged arms give excellent stopping power and smooth modulation when you need it.Aerodynamic U design,TT6 Forged aluminium arms,Kool-Stop® aluminium cartridge pads,Titanium hardware,Reach: 39-51 mm / rear 54.5-66.5mm / front,156 grams / rear,172 grams / front,.