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Selle Italia
SLR Kit Carbonio Boost Superflow Saddle

5 out of 5 stars
2 Reviews
Current price: $314.99 Original price: $399.99
21% off

Style & Size:


Why We Like The SLR Kit Carbonio Boost Superflow Saddle

When race season is around the corner, you'll want every advantage you can get. This includes under your sit bones, and Selle Italia's SLR Kit Carbonio Boost Superflow Saddle is tuned to provide every edge you could need when you're toeing the line. The SLR Kit Carbonio is one of the many welcome results from Selle Italia's extensive research into the most effective saddle designs. They introduce a unique rear frame that innovates on traditional ideas to allow independent flex of the left and right side of the saddle, so you can ride with more effective support on the alernating motions of your hips while you pedal, resulting in improved overall comfort, without faltering on stability when you're hammering on the pedals going for the breakaway. This technology is then paired up with a large center cutout that relieves perineal pressure, aiming to reduce numbness and pain that can be associated with long hours in the saddle.

Selle Italia crafts most of their saddles within a scale in its lineup, and the SLR Kit Carbonio Boost Superflow lands near the top, just a notch behind the featherweight Tekno verson, scaling in at just 12-grams heavier — hardly a noticeable difference. It features a more compact shape than the standard SLR, with a shorter nose that stands out against the competition, and a construction that's optimized for racing. By using carbon rails and a shell comprised entirely of carbon, Selle Italia is able to achieve an impressive weight with great durability.


  • A featherweight saddle that gives every advantage on race day
  • Tuned flex moves left and right independently to support hip movement
  • Relieve perenial pressure with large center cutout
  • Carbon rails reduce weight without sacrificing strength
  • Carbon shell supports major sprints and hard pedaling
  • Resist abrasion with tough microfiber cover that's built to last
  • Item #SELA098
carbon (7 x 9mm oval)
Seat Length
Seat Width
[S3] 130mm, [L3] 145mm
Claimed Weight
[S3] 4.3oz (122g), [L3] 4.6oz (129g)
Manufacturer Warranty
2 years
road cycling

Overall Rating

5 based on 2 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 0 reviews
5 Stars - 2 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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5 out of 5 stars

July 28, 2021

Outstanding! Where has this saddle been?

I've put it through the wringer
Size Bought:

I've tried no less than about 10 saddles in the last decade trying to get fit dialed in including some of the latest 3D printed saddles. Saddle fit has quite literally been one of my biggest sore points in finding riding comfort. A bike fitting revealed that I have incredibly narrow sit bones, which was a revelation to me as I always thought I was average to above-average in width. Selle Italia is one of the few companies that make saddles for narrow sit bones so I opted for this one. The Superflow cut-out is generous compared to others that I've tried. The Boost length is slightly shorter than standard without looking too stubby. It's definitely a happy medium that allows for some fore and aft movement. The padding is minimal without being too hard and the slight hammock shape is exactly what I was looking for. The aesthetics are top-notch and the bright red cut-out trim happens to match my frame perfectly. I don't even think about my saddle anymore.

5 out of 5 stars

September 21, 2020


I've used it several times
Size Bought:
5' 7"

it is very comfortable, looks grate, carbon absorbs vibrations. top quality.

victor R