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Stay focused on your calves
U-Cups® were designed to prevent tipping backward while doing standing barbell calf raises. The U-shaped chamber contains the barbell which allows you to focus 100% on your mind-muscle connection until failure.
Build calf muscle faster
Research shows free-weight exercises require greater muscle fiber recruitment to stabilize the load. Rated to handle over 1000 lbs, using U-Cups® will challenge your calves in a whole new way.
Save space in your home gym
Dedicated standing calf machines and Smith machines can take up valuable floor space in your gym. U-Cups® let you save that space (and money) by utilizing your existing rack and barbell.
Compatible with most racks and barbells
U-Cups® are designed to fit common sized rack posts with 1" or 5/8" pin holes. The "U chamber” is 35mm deep, supporting most barbell diameters, and is 11" in height to allow safe, full range of motion calf raises.
Lifetime Guarantee
U-Cups® are solid, made with the highest grade of steel (A36 carbon plate) and HDPE (UHMW available on request) plastic inserts. There are no moving parts. Their overbuilt quality will withstand whatever you throw at them and still last a lifetime.
Made in the USA
U-Cups® are utility patent protected (U.S. Patent No. 11,890,498) 100% American made. From source materials to manufacturing, assembly, packaging and shipping. We believe in supporting local economies.
Orders may take 48-72 hours to be fulfilled
Best heavy calf exercise I’ve ever done. Load up the weight, stand on a stable wedge or platform for deep stretch. It’s so good. Of all my accessories this is my new favorite.
BOOM! 🔥🔥 Thank you so much for your words and photos, Todd! Truly appreciate your support! 🙏 Drop sets with 495/405/315/225/135 are brutal.
These u-cups work perfectly. They easily snap on and off the 2x2” posts on my squat rack in seconds. I can perform the full range of deep stretch platform calf raises with room to spare.
They are heavy duty and completely safe.
So much better than weight vests or clunky belts with chains and plates. I recommend
I was looking for a way to do calf raises at home without having to do one leg at a time. Seated calf raises don’t cause as much hypertrophy and without something like this using a barbell isn’t safe. I also got the calf curve which is far superior to the 2x4s I was using. Great stretch, very stable even under heavy loads. Now, my entire calf workout is a barbell myorep which I can safely knock out in a few minutes. The only S-tier alternative is a dedicated standing calf raise machine which is far more expensive and takes up more space. Buy these and you’ll be happy you did.
These Ucups combined with the calf curve is the perfect calf raise set up for those with a power rack. I have a rep fitness PR 5000 Ares 1.0 power rack with 3x3 1 inch holes and this fits perfectly. This helps avoid getting a dedicated calf raise machine. Highly recommend.
Very nice, that's a great rack. Appreciate your review, Andrew! 🔥🔥
These are great. Once you figure out the form and find balance you can lock in and load your calves down. Only complaint was powder coat on pin was so thick it almost didn’t slide into the rack post holes. I guess it’s better than powder being thin!
Awesome, glad to hear it, H.a.W! Yes, there's definitely a sweet spot with U-Cups. Once you lock in the right height, then you can find the right floor position of the Curve (too far behind the rack posts and you'll tilt backward and grind the 'front' brackets of the U-Cups -- too far in front of the posts, and you'll tilt forward and grind against the back brackets). When you find that middle zone, you'll merely tap the U-Cups as you do your reps. That open motion further recruits the calf muscles for stability versus relying on the pads. Also, appreciate your feedback on powder, I'm glad yours still fit. We found a few others with slightly extra coating at the time and notified our manufacturer to double check tolerances. Thanks again!
Works perfectly with my rogue wall mount rack. Now I can use a barbell and not lose my balance or scratch up my rack.
Awesome! Exactly what it was designed for. Deep deficit reps until total failure, without tipping backward. Glad you're able to blast your calves full force now. 🔥
Those hooks work great for me with my homemade calf block. I’ve asked for your U4CFitness’ calf block as a Christmas gift. If I don’t get it then, I’ll definitely be ordering it for myself. Just these hooks are a game changer for me, since I just work out at home and don’t have access to a legit calf machine. I can’t recommend enough. Game changer
Love reading that, Jesse, thank you! Can't wait to hear your thoughts on the Calf Curve if you ended up getting it for Christmas. If not, email me at general@u4cfitness.com for a holiday discount .
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