Men's Bontrager Circuit Cycling Short

Item No. 1643-520520

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Product Description

A performance cycling short with impressive features and modern styling for committed road riders.

Graduate to the faster group ride
With sensible features, top-level comfort, and bold style, the Circuit Short offers practical performance for every type of ride. Multi-material construction and a molded dual-density chamois make the perfect pair for stylish all-purpose performance.

  • Stratus inForm Chamois with an OverEasy constructed dual-density foam pad
  • Clean cut compression leg gripper
  • 10" (25cm) inseam
  • Fitted cut provides streamlined body fit for enhanced performance

  • Gender - Men
  • Fit profile - Fitted
  • Inseam length - 10" (25cm)
  • Water resistant - No
  • Chamois and liner - Chamois (Sewn-in)
  • Fiber content - 83% Nylon / 17% Elastane
  • Material - Knit
  • Material technology - Antimicrobial

Customer Reviews

4.5 / 5.0
10 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
These are the Best cycling shorts I have ever used.
I am a road cyclist and have only used these cycling shorts for just over a hundred miles, but they are the best fitting and most comfortable I have ever tried. I don't think I will use anything else from now on.

I haven't had them long enough to talk of their durability. I just hope they last.
June 25, 2021
Originally posted at
Rated 5 out of 5
Great product, I've always used the less expense ones but never again, huge difference
May 20, 2021
Originally posted at
Rated 5 out of 5
Bontrager Circuit Cycling Shorts
I use this underneath my shorts or athletic pants.
September 23, 2020
Originally posted at
Rated 4 out of 5
Nice and comfortable!
Comfortable shorts!
July 14, 2020
Originally posted at
Rated 5 out of 5
Very nice
Worth the money because of the design and technology. The padding feels like little marshmallows. Very happy with my purchase. I bought 1 pair, then ordered 4 more ASAP. Now I have 5
June 20, 2020
Originally posted at
Rated 5 out of 5
Favorite shorts w/38 years experience
I have had many favorite shorts over the last 38 years from LG & Cannondale. Most of them either fit too loose or too tight. Cheap ones didn't last me over 2 years. These feel good to wear and are made like they will last a long time. I'll buy more pairs soon.
May 3, 2020
Originally posted at
Rated 4 out of 5
Comfortable and fits good
I use this for cycling/ road riding. It is put to good use on long rids and it evaporates sweat well. Never had any bad issues with them.
August 2, 2019
Originally posted at
Rated 4 out of 5
Great Shorts
I will be buying more of these shorts.
June 24, 2019
Originally posted at
Rated 4 out of 5
Upsize if you have large quads
Strongly suggest you try before you buy. I'm 6'3" 220lbs w/32" waist, but had to move up to XL to fit my legs. Otherwise, great feel - comfortable and right-height waist and thick leg band doesn't dig into my quads like the lower priced model, yet still provides adequate compression.
May 15, 2019
Originally posted at
Rated 4 out of 5
Great for Mountain Biking
I have been using the Circuit shorts for a little over a year now for mountain biking. I wear it under my Evoke MTB short. So far it has been great for a guy who is 5'11" and weighs in at 185lbs. I find the lycra material to still retain its elasticity after all this time, but I have cared for it by only washing with cold water and then air drying (a MUST do otherwise you will loose your elastic in the material over time). For mountain biking, they are not the best short and this is mainly because the waist band tends to sit up pretty high. To this issue, others suggested I consider the Troslo bib short as it won't ride up and buckle on me at my waist. But I have still been using these for the meanwhile and they work great! No issues with movement either.
October 18, 2018
Originally posted at