SDG I-Fly 2.0 I-Beam Saddle - Black/Red Model-V-Type Aero chainrings are NOT compatible

Aero chainrings are NOT compatible with Shimano GRX 600 series cranksets (FC-RX600-1

Length 280 Gender/Age Unisex Color Black/Gray Rail Material Chromoly Weight 320 Saddle Cut Out No Width 135 Material Synthetic Defined Color Gray Clamp Style Std Rails

The R- Classic binding is designed for competitive and recreational racers

Roto handle with hexagonial drive shaft and protection cover that fits 100 mm wide Swix Roto Brushes

SDG I-Fly 2.0 I-Beam Saddle - Black/Red Model-V-Type Aero chainrings are NOT compatibleI Beam: fiber composite single mono rail design for superior weight to strength ratio, with the widest range of adjustments Low profile nylon glass fiber base for unsurpassed strength Rear Buzz Cut cut out for increased tire clearance Microfiber top with protective Kevlar side panels, lightweight EVA foam padding Requires SDG I Beam specific seatpost TECH SPECS rails I Beam top microfiber color black red LxW (mm) 257x128 weight 166g