Ends Friday—Save 20% on Castelli In-Season Clothing »

Out of Stock

Item # PRL0107

Don't worry though, we have a lot more Men's Road Bike Saddles in stock than that.

View similar in-stock products

Item # PRL0107


If you've ever experienced a saddle sore, you know all too well the grimaces that accompany them. A properly fitting saddle is your first defense against these ride-robbing lesions. The Prologo Scratch Pro Nack Saddle combines the race-ready silhouette of the Nago Evo with a profile of an endurance saddle for all-day comfort. It's especially well-designed for riders who spend the majority of the time in the saddle, even while climbing.

The Scratch Pro Nack has a variable stiffness frame made of injected carbon. Varying the stiffness allows the frame to flex in the middle, which leads to better shock absorption and less rider fatigue. The multi-density foam used on top of the frame follows the same principles. A softer padding lines the midsection while a firmer padding is placed across the paddle (the widest portion), where you sit. Firmer padding not only supports the sit bones, it also reduces 'bouncing,' which robs the power transfer to the pedals. The saddle is set upon Nack rails. These are carbon fiber woven with Kevlar, and they are interspersed with aluminum particles for reinforcement. They are strong and durable.

The round profile of the Scratch Pro Nack is one version of the three profiles Prologo offers. The rounded design provides even contact with the saddle across the sit bones, thereby minimizing hotspots. In conjunction with the round shape, the Easy Stroke Design, or ESD, transitions the widest part of the saddle into deep leg cutouts. This exaggerated silhouette reduces friction points along the inner thighs and helps transfer power more efficiently to the pedals. This endurance saddle was finished off with a tough microfiber cover that resists scratches and tears.

Prologo's Scratch Pro Nack Saddle is 134mm wide and comes in Full White, Hard Black, and Hard Black/white.

Tech Specs

carbon fiber injection
Seat Length:
278 mm
Seat Width:
134 mm
Claimed Weight:
165 g
Recommended Use:
road cycling

Reviews & Community

What do you think of the

Prologo Scratch Pro Nack Saddle

? Share a...

Write a review

No file chosen

Rather attach a photo from another website?

Rather attach a photo from your computer?

    Add a:
  • Share a photo
  • Share a video


Only jpg, jpeg, png, gif or bmp files please.

Submit Cancel

Here's what others have to say...

Round or oval rails?

Round or oval rails?

Best Answer Responded on

99.99999999999% sure that the rails are round ;) Here's a link to Competitive's YouTube review :

Responded on

From the video it looks like Prologo saddles with carbon rails are oval rails. I know from experience that Prologo saddles with Ti rails are round rails.

Responded on

Just got a prologo and they are indeed oval with 9.6 height, like fizik.

Just got a prologo and they are indeed oval with 9.6 height, like fizik. <br/>