Selle Italia SLR Boost Tekno SF S3 Carbon Rails Black CheckoutSpec= SpeedGrip One side accommodates most square

One side accommodates most square shank frame taps up to M6

4 Rim Width (Internal) 25 Brake Track None Manufacturer Spec ERD (mm) 563 Valve Presta Valve Length Short 32-40mm Color Black Weight 374 Wheel Size 27

No-compromise premium headset Series Cut in cane creek's fletcher

4mm Seat Post Length 350mm Seat Post Material Aluminum Travel 40mm Seat Post Diameter 25

The patented RWS wheel mounting system from DT Swiss is stiff safe and user friendly

Selle Italia SLR Boost Tekno SF S3 Carbon Rails Black CheckoutSpec= SpeedGrip One side accommodates most squareHandmade 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