Competition Kettlebells

On-spec competition kettlebells. Accurate to +/-200 g or better.

4.9
Rated 4.9 out of 5 stars
221 Reviews

Choose Your Competition Kettlebells

$51.99 CAD
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PRE-SALE - 2026-09-30
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Product Features

  • Meets Legal Specs

    These superior quality competition kettlebells meet Girevoy Sport Union (GSU), IKFF, and International Union of Kettlebell Lifting (IUKL) standards with uniform sizing, so you don't have to continuously adjust your lifting technique as you move up in weight.

  • Ergonomic Design

    The 33-35mm handles and 58-60mm windows, these competition kettlebells are designed for comfort and grip. The larger circumference supports a relaxed grip with minimal friction, and the window prevents cramped knuckles during two-handed work.

  • Built to Last

    The innovative dual-cast process leaves the competition kettlebell hollow in the middle-that means no rattle of doom after repeated drops. The bells are cast as one piece with no welds to last a lifetime. Perfection!

Product Details


A mismatched pile of cast iron says you bought whatever was on sale. A clean ladder of identical bells says you're actually training. Competition kettlebells aren't just a step up in quality; they're a completely different class of tool.

Here's the thing nobody explains until you've already bought the wrong bell: the size never changes. 11" / 280 mm tall, 8.2" / 210 mm across, same on the 12 KG, same on the 32 KG, same on the 48 KG. The wall gets thicker as the weight goes up. The bell doesn't. So when you move up in weight, it sits in the same spot on your forearm and lands in the same place on the floor. Every time.

One reviewer put it better than we would:

"These are amazing quality and I love how they are all the same size so no matter the weight they feel the same in my hand." - Patrick M., verified buyer

SIXTEEN WEIGHTS. 4 KG TO 48 KG. All colour-coded, all marked in both KG and LB on the face. One ladder you never outgrow. Not sure which weight to start with? The kettlebell weight guide breaks it down for every level.

TWO HANDLE SPECS. BOTH COMPETITION CLASS. These bells meet legal Girevoy Sport Union (GSU), IKFF, and International Union of Kettlebell Lifting (IUKL) standards. The 10-48 KG bells run a 60 mm window and 35 mm handle, the required international competition size, built for a relaxed grip and zero knuckle cramping. The 4, 6, and 8 KG step to a 58 mm window and 34 mm handle, sized for beginners and smaller hands. A 12-year-old on the 6 KG and a lifter chasing rank on the 32 KG are holding the same class of bell, just sized to their hands.

GRAVITY CAST. ONE PIECE. NO WELDS. No seam, no filler packed in to hit a number. The core is hollow, which is why the weight sits where it should and why there's nothing rattling around inside.

A buyer on his third bell:

"These bells are perfectly weighted, love the hollow core gravity cast design. They are perfectly balanced and feel superb." - Blair D., verified buyer

UNMATCHED WEIGHT ACCURACY. ±200 g / 0.44 lb on every bell from 10-48 KG. ±100 g / 0.22 lb on the 4, 6, and 8 KG. Our own powder coat line runs ±300 g. Most of the competition publishes nothing at all, which is its own kind of answer.

Want to understand the difference between competition and standard bells before you decide? We wrote the explainer.

4.9 stars. The reviews keep landing on two things: they came from mismatched cast iron and aren't going back, and they're working their way up the ladder.

Want the full ladder without the full footprint? The Adjustable Competition Kettlebell gives you up to 41 weight intervals in one bell for the same competition shape, same feel, same quality, same Limited Lifetime Warranty. One bell to rule them all.

PRODUCT SPECS



4.9
Rated 4.9 out of 5 stars
Based on 221 reviews
Total 5 star reviews: 202
Total 4 star reviews: 17
Total 3 star reviews: 2
Total 2 star reviews: 0
Total 1 star reviews: 0
99%would recommend this product
Slide 1 selected
221 reviews
  • JP
    Joseph P.
    Flag of United States
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 days ago
    2nd pair of BoS kettlebells so far

    I like quality equipment, and I like good prices too; but I LOVE IT when I get both. Can’t wait till I’m strong enough to buy my next pair 💪

  • RB
    Ryan B.
    Flag of Canada
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Bells Of Excellence

    I've been buying competition kettle bells from Bells of Steel since they opened their warehouse pick up location over a decade ago. My wife and kids have started using them as well. I’ve never liked lifting traditional weights and the dynamic movements used in KB exercises have given me the best gains I ever achieved. I have used KB’s from other companies and thev’ve had polished handles which were slippery and obviously not up the same quality as Bells Of Steel. I cannot recommend their products enough.

    Bells of Steel Canada
    2 weeks ago

    Hi Ryan,

    Thanks for the incredible review! It means a lot to hear you've been with us for over a decade. 🙏

    We are honoured to have earned your trust, and it is awesome that your whole family is now putting those Competition Kettlebells to good use.

    We are especially glad the handle finish and quality have helped set our kettlebells apart and keep you focused on your training.

    Thank you for your continued support and recommendation. Here's to many more years of swings, cleans, and PRs! 💪

    Yours in strength,

    The B.o.S. Crew.

  • SS Profile picture for Simon S.
    Simon S.
    Flag of United States
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    1 month ago
    Excellent kettlebell w/minor cosmetic issue

    Overall very happy with these; they’re an excellent addition to my home set up. Handle dimensions and balance are great. Three comments about the coating; one neutral and two small issues.

    Neutral: The coating is a bit slicker than other bells I have and I’m not sure which I prefer yet

    Issue 1: The transition from coating to bare metal is a bit sharp; I notice it during curls and swings and would prefer a smoother transition.

    Issue 2: There are a few cosmetic defects on one of the kettlebells; doesn’t impact the workout but ideally wouldn’t be there.

  • JW
    Joshua W.
    Flag of United States
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    SOLID PERFORMANCE

    Been using for a couple weeks now. I love the hollow core. Weight seems evenly distributed. The color is much different than the online pictures and I was very pleased when I opened the box to find a nice green color and NOT a Scratch! The actual color coating is much thicker than some of my other KB’s. Packaging was awesome. Double boxed with strong tape. The handle is bigger (about 2mm) than my other KB which is fine, helps with grip and will increase forearm strength. My only bone to pick was the actual handle. It had a few high points that could potentially rip into hand. Reached out to customer service and they helped me with instructions on how to smooth it out. I personally am not used to the window opening of the KB, but I assume it is similar to others on the market. Just keep training! If you’re on the fence just buy one, you won’t regret it.

  • ML
    Michael L.
    Flag of Canada
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    Bells of Steel Competition Kettlebells

    I bought a couple of Competition Bells from Bells of Steel to check them out. I was very happy with them once I got home, so I ordered a full set up. They are high quality Kettlebells made to Sport standards with great balance. The BoS Competition Kettlebells are a great investment for anyone getting into kettlebells and Pro’s alike. I love the Kettlebells and they are the main focus of my garage gym but I also love that I can take them to the yard, in my home or on a road trip. The portability of the Kettlebells make it a must have for anyone serious about staying active and fit.

    Thank you for putting out a fantastic product BoS , and thank you to the Calgary team that helped me. Everyone along the line was great.

    Bells of Steel Canada
    3 months ago

    It is awesome to hear that you are so happy with your new Competition Kettlebells. We love that they have become the centerpiece of your garage gym and that you are taking advantage of their portability for workouts in the yard or on the road.

    We really appreciate the kind words about our Calgary team, too. It is great to know they provided such a positive experience while you were getting your full set together. Thanks for the support and for sharing your photo with us. 😊 🙏

    Yours in strength,

    The B.o.S. Crew.


A 4x4 grid of Bells of Steel Competition Kettlebells, each in a unique color like black, pink, blue, and yellow, displayed on white. Their ergonomic design suits kettlebell sport enthusiasts.
Bells of Steel

Competition Kettlebells

From $51.99 CAD

A mismatched pile of cast iron says you bought whatever was on sale. A clean ladder of identical bells says you're actually training. Competition kettlebells aren't just a step up in quality; they're a completely different class of tool.

Here's the thing nobody explains until you've already bought the wrong bell: the size never changes. 11" / 280 mm tall, 8.2" / 210 mm across, same on the 12 KG, same on the 32 KG, same on the 48 KG. The wall gets thicker as the weight goes up. The bell doesn't. So when you move up in weight, it sits in the same spot on your forearm and lands in the same place on the floor. Every time.

One reviewer put it better than we would:

"These are amazing quality and I love how they are all the same size so no matter the weight they feel the same in my hand." - Patrick M., verified buyer

SIXTEEN WEIGHTS. 4 KG TO 48 KG. All colour-coded, all marked in both KG and LB on the face. One ladder you never outgrow. Not sure which weight to start with? The kettlebell weight guide breaks it down for every level.

TWO HANDLE SPECS. BOTH COMPETITION CLASS. These bells meet legal Girevoy Sport Union (GSU), IKFF, and International Union of Kettlebell Lifting (IUKL) standards. The 10-48 KG bells run a 60 mm window and 35 mm handle, the required international competition size, built for a relaxed grip and zero knuckle cramping. The 4, 6, and 8 KG step to a 58 mm window and 34 mm handle, sized for beginners and smaller hands. A 12-year-old on the 6 KG and a lifter chasing rank on the 32 KG are holding the same class of bell, just sized to their hands.

GRAVITY CAST. ONE PIECE. NO WELDS. No seam, no filler packed in to hit a number. The core is hollow, which is why the weight sits where it should and why there's nothing rattling around inside.

A buyer on his third bell:

"These bells are perfectly weighted, love the hollow core gravity cast design. They are perfectly balanced and feel superb." - Blair D., verified buyer

UNMATCHED WEIGHT ACCURACY. ±200 g / 0.44 lb on every bell from 10-48 KG. ±100 g / 0.22 lb on the 4, 6, and 8 KG. Our own powder coat line runs ±300 g. Most of the competition publishes nothing at all, which is its own kind of answer.

Want to understand the difference between competition and standard bells before you decide? We wrote the explainer.

4.9 stars. The reviews keep landing on two things: they came from mismatched cast iron and aren't going back, and they're working their way up the ladder.

Want the full ladder without the full footprint? The Adjustable Competition Kettlebell gives you up to 41 weight intervals in one bell for the same competition shape, same feel, same quality, same Limited Lifetime Warranty. One bell to rule them all.

Kettlebell Weight

  • 4 KG
  • 6 KG
  • 8 KG
  • 10 KG
  • 12 KG
  • 14 KG
  • 16 KG
  • 18 KG
  • 20 KG
  • 24 KG
  • 28 KG
  • 32 KG
  • 36 KG
  • 40 KG
  • 44 KG
  • 48 KG
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