Selle Italia

SLR Kit Carbonio Boost Superflow Carbon Saddle

What Our Gearhead® Experts Are Saying:

"I’ve used this saddle across several bikes—it’s light, supportive, and just disappears under me on long efforts. The rail length gives me way more setup range than most carbon saddles."

Selle Italia’s SLR Boost Kit Carbonio Superflow is a staple for riders chasing watts, comfort, and a dialed cockpit fit. This high-performance saddle features a neutral shape that offers the right support for both dynamic riders and those with a more static position. The Superflow cut-out ensures pressure is minimized on sensitive areas, making this an ideal choice for sustained efforts on tarmac.

What elevates this model is its +10mm carbon rail extension, providing greater fore-aft adjustment for fine-tuning position across a wide range of frame geometries. At just 122g for the S3 size, this saddle strikes the balance between minimalist weight and real-world comfort. The compact profile and short nose increase pedaling efficiency and movement control—ideal for climbing, sprinting, and staying aero.

When every ounce and millimeter count, this saddle delivers a pro-level edge without sacrificing comfort over the long haul.