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  • Ergon SM3 Pro Carbon Saddle - Men's
  • Ergon SM3 Pro Carbon Saddle - Men's
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ErgonSM3 Pro Carbon Saddle - Men's
Sale 50% Off$149.50 $299.00

Item # ERG0052

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  • Black, S ($149.50)
  • White, S ($149.50)
  • White, M ($149.50)
  • White, L ($149.50)
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Item # ERG0052

SM3 Pro Carbon Saddle

Typically, mountain bike saddles are either designed for gravity abuse or they're road saddles with an added abrasion resistance. So, when Ergon decided to enter the off-road saddle market, it focused on the demands of endurance racers. Ergon knew that this sub-genre of mountain biking necessitates both schools of saddle design, and accordingly, would lead to the most well-rounded saddle. The result of this research is Ergon's SM3 line of saddles, and its top offering, the SM3 Pro Carbon Saddle. Ergon knew if it could perfect a saddle for those who spend the most time on one, it'd have mass market appeal. So, a defining feature was born -- the SM3 Pro Carbon is made available in three sizes, as proper fit is a significant factor for long-term comfort when miles start stacking.

Ergon's first products were handlebar grips that gained a quick cult following because of their support and ability to reduce fatigue. Using the same benchmark design principle, Ergon designed the SM3 saddles from the ground up. To start with, the ultra-thin carbon fiber shell used an extensive finite element method analysis to map loads and areas of stress. This gave the saddle its distinctive shape, but more importantly, it allowed Ergon to tune the shell construction for optimized deflection.

The shell is actually 3D, and it features 'hollows' that provide controlled flex at the sit bones. Covering the shell are progressive dampening layers that are individual to the different saddle widths. Every size option gets its own layering for rider-specific compression. Adding to the SM3's trail smoothing ability, is a nose mounted micro damper.

This damper, located in between the shell and carbon fiber rails, filters out smaller vibrations, and works in conjunction with the isolated rear mounting to allow the shell to float independent of the rails. The result is one of the most forgiving saddles on the market. The rails provide 30mm of adjustment for proper fitting on your mountain bike.

The SM3 also has an easy-to-clean synthetic leather cover -- just wipe it off with a damp rag. But, more important than saddle hygiene is its silicone side coating. This reduces chafing, always a good thing, and it also ensures that riders can quickly shift weight fore or aft to enhance body English for optimum traction or line choice.

Ergon is a proud German company, yet instead of manufacturing the saddles itself, Ergon enlisted the help of the saddle perfectionists at Selle Italia. As a result, every SM3 is manufactured in Italy by expert craftsmen. To size yourself for an Ergon SM3 Pro Carbon Saddle, you'll need to measure the distance between your sit bones. Widths between 9-11cm should ride a Small, 11-13cm a medium and 13-15cm should opt for a Large.

  • A featherweight saddle for long endurance rides
  • Carbon rails and shell reduce weight and elevate stiffness
  • Available in three sizes to accommodate everyone
  • Synthetic leather cover is easy to clean and durable
  • Micro-damper between rails reduces trail vibrations
  • Flex-optimized carbon helps deflect jarring trail conditions
Tech SpecsWeight
Tech Specs
carbon fiber
Flex Optimized Carbon Composite
synthetic leather
Seat Length
[small] 287 mm, [large] 287 mm
Seat Width
[small] 135 mm, [medium] 145 mm, [large] 155 mm
Recommended Use
mountain biking
Manufacturer Warranty
2 years

Actual Weight

Actual weights are measured in-house by the Competitive Cyclist team.

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Black, S
White, S
White, M
White, L

Claimed Weight

Claimed weights are provided by the vendor.

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[small] 210 g, [large] 220 g

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I had to get another before it was gone

  • Familiarity: I've put it through the wringer

I've had a black version of this saddle on my MTB since 2014 and love it. I've ridden it on super long days, crashed a million times, you name it, like the review says, I've put it through the wringer and it's has never given me any issues. It was so good in fact, I switched out my road and gravel bikes to the road version of this saddle (at the time, also on sale) .

So when I saw this MTB version was on sale and the new version wasn't quite the same, I figured I would play it safe and pick one up for my next bike but this time I got the white.