SDG Bel-Air RL Saddle CrMo Rail - Black ModelNumber=K4307 Its Sacred Geometry hollow bead

Its Sacred Geometry hollow bead wall and Bead Bite tubeless interface improve lateral stiffness impact resistance and air retention—even under low pressure

Hayes Pro bleed kits include dual syringes and high quality fittings for precise repeatable bleeds

A wider bead wall effectively reduces pinch flats and increases impact resistance

Model SRC Front/Rear Rear (HG 8-11sp) Axle/Spacing (mm) 12x170/177 Hole 32 Spoke J-Bend Brake 6-Bolt Color Black Weight 377g Axle Type Thru-Axle Size 12 X 170/177Mm

Designed from the ground up Rim Stix work with all tire and rim combos and include an emergency valve core remover

SDG Bel-Air RL Saddle CrMo Rail - Black ModelNumber=K4307 Its Sacred Geometry hollow beadComfort, pressure relief groove on top Synthetic top with Kevlar sides, or microfiber with Cordura sides, generous foam padding Traditional railed saddle with nylon carbon base. Nose and tail guards Model Bel Air RL Rails CrMo Top Synthetic Color Black LxW (mm) 270x140 Weight 320g