Selle Italia SLR Boost Tekno SF S3 Carbon Rails Black CheckoutSpec= 120mm Stem Length Built with an invisible welded

Built with an invisible welded joint and shot peened 6069 T6 heat-treated aluminum

old and aggressive

The derailleur body features replaceable skid plates like GX X0 and 90 and shares many of the same rebuildable qualities of those high-end derailleurs

Tooth Count 43 Ring Position/Type Outer Drivetrain Speeds 12 Chainring BCD 94 Color Polar Grey Defined Color Gray Material Aluminum

Selle Italia SLR Boost Tekno SF S3 Carbon Rails Black CheckoutSpec= 120mm Stem Length Built with an invisible weldedHandmade by master craftsmen Tough carbon rails bring a level of high performance without adding excess weight, with the Superflow cut out increasing comfort by reducing pressure on the perineum The carbon weave of this saddle is the perfect finishing touch for your bike the perfect blend of classic aesthetic and technological advancement L3: Wide intertrochanteric distance and high pelvic rotation (Flow and SuperFlow saddles) S3: Narrow