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Men's RK1 Bib Short

99 % of 100
The RK1 Bib Short is an elite performance, second skin road cycling short, built for speed and endurance in hot conditions.

Have a question? We'd love to hear about your next adventure.


Centred around a custom Force platform chamois, the RK1 delivers plush comfort and cooling airflow thanks to minimal, breathable fabrics and an innovative cut-away front section.

Clean Finish Construction and a soft, silky body fabric provide the perfect environment for race day, while a compressive fit assures stellar stretch and recovery.

Seamless clean cut edges at the legs do away with overeager grippers, extending body fabric to the hem to encourage a balanced, tapered grip.



  • Body: 66% nylon, 34% elastane
  • Bib Straps: 77% nylon, 23% elastane
  • Chamois: Elastic Interface Mens Performance Force (Made with recycled content)


  • Men’s: 168g


  • Mens Performance Force chamois with front cut out for breathability
  • Clean Finish Construction
  • Single seam, open mesh bib strap construction
  • Clean cut hem with silicon gripper
  • Reflective logo


  • X-Small: 8 3/4" - 22.5cm
  • Small: 8 3/4" - 22.5cm
  • Medium: 9 1/4” - 23.7cm
  • Large: 9 1/4” - 23.7cm
  • X-Large: 9 3/4” - 25cm
  • XX-Large 9 3/4" - 25cm

Care Instructions

  • Machine Wash Cold
  • Do Not Bleach
  • Do Not Iron
  • Hang To Dry
  • Do Not Dry Clean
Crash Replacement

Crash Replacement

Hit the hills and go full out on the flats without worrying about keeping the rubber side down. To ease your mind and stay focused on the ride, we offer a Crash Replacement Policy.

Skin Fit

Skin Fit

Products that blend performance fabrics with highly articulated patterns to create a close-fit that feels like an extension of your body. Skin Fit apparel improves aerodynamics, moisture management and thermal efficiency.

7mesh RK1 Bib Short7mesh RK1 Bib Short
  1. "A big outlay but the performance and attention to detail mean they're worth it."

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7mesh RK1 Bib Short7mesh RK1 Bib Short
7mesh RK1 Bib Short7mesh RK1 Bib Short
7mesh RK1 Bib Short7mesh RK1 Bib Short
7mesh RK1 Bib Short7mesh RK1 Bib Short
7mesh RK1 Bib Short7mesh RK1 Bib Short


Product Reviews

  1. Georg

    Best Bib Shorts I've ever had

    Simply love 'em. Superlight, extremely close to the skin, great chamois and overall look and feel. Feels damn fast.
  2. DZ

    Great Bib Shorts

    Very comfortable and great for hot days.
  3. Jonas m

    Silky smooth comfort

    For the first time ever, I understand the term "second skin. These are simply comfortable and fit without any creasing or gaps anywhere. They are silky smooth and the straps are the most comfortable fabric of all my bibs. The straps sit perfectly and the cut is supreme! Personally, I wish they ...

  4. Waves

    As advertised

    Longtime Assos user, also have Castelli, Sugoi, etc, ride year round. These feel as good first few rides, cannot comment on durability yet. But I look for them first now in the drawer.
  5. Simon

    Amazing bibs.

    This has become my favourite set of bib shorts. I wear them under a thin pair of baggy shorts on the MTB and stand-alone on the road bike. They are thin enough to get plenty of air flow even with baggies over them. I have always had a tough time with shoulder straps and nipple chaffing when it gets ...

  6. Brian YEG

    Feels like I'm wearing nothing at all

    These are by far the most comfortable road racing shorts I've purchased. The RK1 is a very light weight thin breathable pair of shorts that will keep you moving in the saddle comfortably for a lot of KMs. They almost act as compression shorts with the high elastane content. The chamois is ...

  7. Devon

    Fit and comfort amazing

    We are in a heatwave and these are my go-to bibs. Several rides in them, the longest 100km, and the bibs have been so comfortable even in the heat. Excellent quality, and finish. The extra light straps that breathe are a great welcome, and the design on how they sit is very thoughtful. No nipple ...

  8. Imre

    Comfortable, slick, pro

    Worn about 5 longer road rides so far. Very comfortable, pro-style minimalist shorts with the painted-on look and feel. True black and no sign of fading after sun exposure and machine washing. The chamois is a bit thinner and less sophisticated than similar level shorts from other brands like ...

  9. Justin H

    Ticks every box.

    These bibs offer amazing comfort and thermal regulation on the super hot days. The chamois design is really outstanding and I can't get over how nice these are to wear. Leg length is perfect, the mesh bib straps rest softly on the shoulders. Best bib's I've ever worn.
  10. Gijs

    Great bib short, perfect fit and length

    Great bib short. Fit on the bike is perfect. This is also the case with the materials, finish and length. I have some very expensive bibshorts (> € 300) and this one performs in line/ better than those. Very happy with the length of the legs because I’m tall and some other shorts have ...

  11. Michael

    Super Comfy

    I have worn lots of bibs over the years and these ones are top shelf for comfort and fit. The chamois is great and sits nice and the fabric is what you expect from 7mesh. They also fit perfect; I am usually a large in bib shorts but based on the 7mesh size guide I was a medium for these. I was a ...

  12. Chris

    Great bibs

    All things are outstanding: pad, materials, fit, leg grippers, length, shoulder straps, the height of the front portion. I am just under 5'10", about 165lbs, jeans are a 32" waist and I am wearing the smalls (most other brands I wear a medium).
  13. Garrett

    I've put them to the test...

    3 rides in.

  14. Adam

    RK1 Bib Short

    A bit pricey but worth it. I wore these shorts for 10hrs a day for 6 days on the Colorado trail. They are extremely comfortable and the fit is great. I love how the straps do not run directly over your nipples as that can result in issues on long, multi-day rides. The sizing was a bit confusing, I ...

  15. peter

    They are awesome

    My new fav bibs!!!
  16. Cvachi

    Great light shorts

    They are superb quality, comfy pad and very soft feel. However, in all my previous bibs I was L, here I have to go for M in order to have that tight feel I am used to. Great prodduct, highly recomend!
  17. Andreas


    Angenehm zu tragen. zuerst dachte ich, daß die Hose unten zu eng ist - soabld man sie komplett an hat - hält sie aber gut ihre Postion!, das Polster ist etwas dünner, aber ich hatte in Kombi mit Prologo M5 keine Probleme nach 4,5h.
  18. Devan

    Awesome Bib Shorts!

    Perfect fit, great breathability, incredibly comfortable shammy and shoulder straps. Was worried the straps would be too short for me at 6' 3" but work very well.
  19. Darick

    Nearly Perfect

    I just picked up two pairs of the RK1 bibs and am thoroughly impressed! Coming from Assos, Castelli & Craft bibs, these are a big step up. While being tall (6'5"), I trusted the size chart (and Clare in customer service) for my hips & thighs and went with a medium.

  20. James

    My go to bib

    7mesh has once again left me very impressed. The RK1 shorts fit well, perform well, and are made well.

  21. andrew

    Best bibs I've owned

    Having previously bought Rapha and Assos and reading the specs and reviews of the RK1's I thought I would give them a try as have always been slightly uncomfortable on longer rides. They are a revelation. The fabric initially feels thin but shapes to body perfectly and stays put. Just the right ...

  22. Dan

    RK1 BIB Shorts

    Wow I'll start by saying these are amazingly comfortable shorts with an awesome pad that not only moulds to the derriere but also slightly down the inner thigh just enough to not get saddle rub, they are made of a silky smooth material but which grips well to the saddle and you don't even ...

  23. Raimond

    Close to perfection

    Took the RK1 to the test on a 10 hour gravel ride and although I had a lot to complain that day, none of this concerned my shorts. Happy with the (tight) fit around the legs, the technical details and overall look. Used it on almost every ride since and will definitely come back for more.

  24. Craig


    The RK1 bib is just awesome. I have never had a bib quite like it. 7mesh uses a totally different material, but it's unreal, it's so light weight and fits just as they state.. a second skin. Bottom line, these are super comfortable and well worth the investment.
  25. Adrian


    These are my new go-to bibs - extremely comfortable. No complaints whatsoever.
  26. Lucas


    I have never seen any other road bibs that are close to the RK1 in terms of quality, features and material.
  27. Shawn

    Performance shorts with improved support and comfort

    The RK1 bib does a great job combining the extra compression and precision of a race-fit short with an all-day comfort chamois. It makes these bibs an easy choice for fast or long rides. I definitely appreciate the extra support and firmer fit relative to my old MK2 shorts.

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