Welcome to the leading edge of gravel performance. The Selle Italia SLR Boost Gravel Superflow is not just a saddle—it’s a statement. A synthesis of cutting-edge ergonomics, featherweight construction, and endurance-enhancing features, this saddle is engineered for gravel riders who demand absolute control, unwavering comfort, and elite-level performance in the most demanding environments.
Whether you're navigating a 200km gravel ultra, tackling chunky forest roads, or racing across wild terrain, the SLR Boost Gravel Superflow is the tool that connects you to your machine—precisely, efficiently, and comfortably.
Gravel Ready. Race Proven.
As part of Selle Italia’s iconic SLR (Super Light Racing) line, this gravel-specific edition is optimized for speed and control across unpaved surfaces. With its short-nose design (only 248mm in length), it supports an aggressive yet sustainable posture for better power transfer and responsive bike handling—perfect for fast descents, tight corners, and long climbs.
Superflow Cut-Out — Comfort That Outlasts the Miles
At the core of the design is the Superflow technology, a large central cut-out that drastically reduces pressure on the perineal area. Gravel riding often involves long hours in the saddle over terrain that shakes, rattles, and pounds—this pressure relief channel ensures blood flow is maintained and numbness is prevented, allowing you to stay focused and efficient even after hours in the saddle.
Endurance Padding Meets Rugged Protection
Gravel riding is a test of resilience—for both rider and equipment. The light gel padding inside the SLR Boost Gravel Superflow is engineered to absorb high-frequency vibrations from gravel, roots, and washboard roads. It provides day-long cushioning without compromising the saddle’s svelte performance profile.
To protect that structure, the saddle features a Fibra-Tek cover, an ultra-durable microfiber layer built to resist the scuffs, mud, and grit that define gravel riding. Add in high-visibility reflective inserts, and you've got a saddle that performs as confidently in low-light conditions as it does in open sun.
Titanium Rails – Lightness That Lasts
The TI 316 tubular rails (Ø7 mm) reduce weight by up to 25% compared to standard steel while increasing resistance to vibration and fatigue. These rails deliver a smooth ride quality over uneven terrain, giving the saddle just the right amount of flex to keep your body protected, balanced, and locked in over unpredictable surfaces.
Tailored for You — IDMATCH Smart Fit System
The SLR Boost Gravel Superflow is available in two sizes to fit your unique anatomy, based on Selle Italia’s IDMATCH system:
S3 (130 mm width, 204 g): Ideal for riders with narrow intertrochanteric distance
L3 (145 mm width, 209 g): Designed for wider sit bones and greater pelvis rotation
Both versions retain the same performance-forward shape, padding composition, and weight-saving engineering—so you get a precise fit without compromise.
Key Features at a Glance:
Short-Nose Design (248mm): Improves comfort and pelvic rotation on steep climbs and under pressure
Superflow Cut-Out: Minimizes pressure and maximizes circulation
Light Gel Padding: Ideal for long, rough rides
Fibra-Tek Cover: Durable and abrasion-resistant
Reflective Inserts: Safety meets subtle styling
TI 316 Rails: Lightweight, vibration-damping, fatigue-resistant
Weight: 204 g (S) / 209 g (L)
Performance Category: Gravel, endurance, and off-road racing
