RS4X Road Double Steel Steel splined spindle Integrated bottom bracket Chainrings: 39/53 AERO Material: ALU 7075 CNC $707.00 shipped. 1280g. All RS4X models come with a 30-day Guarantee, free UPS ground shipping/insurance to any continental U.S. address ($12 value), and a two year full warranty. Click here for product details.

Custom Build your RS4X Crank length 165mm 170mm 172.5mm 175mm 180mm Inner chainring 39T None, subtract $48 34T 36T 42T, +$28 44T, +$38 Outer chainring 53T AERO None, subtract $96 46T 50T 53T 52T 54T AERO, +$76 (use 42) 55T AERO, +$76 (use 42) 56T AERO, +$76 (use 44) 58T AERO, +$104 (use 44) 60T AERO, +$104 63T AERO, +$104 50 AERO 1/8" Track 52 AERO 1/8" Track 53 AERO 1/8" Track Bottom bracket BSA Italian (special order)

RS4X Road Double Titanium The choice of Triathlon World Champion Eneko Llanos and Tour of Germany winner David Plaza Titanium splined spindle (80g lighter than steel) Integrated bottom bracket Chainrings: 39/53 AERO Material: ALU 7075 CNC $966.00 shipped 1200g. All RS4X models come with a 30-day Guarantee, free UPS ground shipping/insurance to any continental U.S. address ($12 value), and a two year full warranty. Click here for product details.

Custom Build your RS4X Crank length 165mm 170mm 172.5mm 175mm 180mm Inner chainring 39T None, subtract $48 34T 36T 42T, +$28 44T, +$38 Outer chainring 53T AERO None, subtract $96 46T 50T 53T 52T 54T AERO, +$76 (use 42) 55T AERO, +$76 (use 42) 56T AERO, +$76 (use 44) 58T AERO, +$104 (use 44) 60T AERO, +$104 63T AERO, +$104 50T AERO 1/8" Track 52T AERO 1/8" Track 53T AERO 1/8" Track Bottom bracket BSA Italian (special order)