TrueForm 2-in-1 Cable Attachment: Triceps Pushdown & Biceps Curl
TRUE FORM · 2-IN-1 CABLE ATTACHMENT
TrueForm 2-in-1 Cable Attachment: Triceps Pushdown & Biceps Curl
In stock · Ships in 2-4 working days
NO CHEATING · NO WASTED REPS
Strict reps. Clean failure.
✓ Pure isolation. One arm, one locked path, all the load on the triceps.
✓ Low fatigue cost. No torso bracing, so the set drains your arm and not your whole body.
✓ Easy overload. A failure point you can feel, so you add weight when you have actually earned it.
Single-arm
Lockable pivot
30-sec setup
The rope lets you cheat without noticing. This won't.
FREE EU SHIPPING · 14-DAY RETURNS · 2-YEAR EU GUARANTEE
Made in small batches. Printed, checked and packed by hand, one at a time.
THE SCIENCE, NOT THE HYPE
Momentum doesn't build arms. Tension does.
Two hands on a rope and the set drifts. The load splits, the torso takes over, and your triceps end up doing the least work of anyone involved. One arm on a fixed path fixes all of it.
Tension builds muscle
Tension is what grows a muscle. The brace holds it on your triceps instead of letting it leak into your wrists and back.
The negative is half the rep
You are strongest lowering the weight, and that is where a lot of the growth comes from. A fixed path lets you take the negative slow, without the handle twisting away.
No cheating left
No wrist flick, no elbow flare, no swing. When the path is fixed, the only way to finish a rep is the honest way. Failing clean also costs you far less than grinding out sloppy ones.
Why we built it
Double-arm pushdowns burned our whole body and barely touched our arms. So we built the opposite, printed it ourselves, and hung over 20 kg on it to see if it would give. It didn't.
Backed by peer-reviewed research: Krzysztofik et al., 2019 (NIH)
SINGLE-ARM LOAD
One arm will humble you.
Take one arm off the rope and the number on the stack collapses. That scares people off. It shouldn't. It is the proof.
On a rope you might move 40 kg with two hands. Split it between two arms, subtract what your torso, wrists and grip were quietly doing, and you see what your triceps were actually working with. Not much. Here there is nowhere to hide, so the weight drops and the set finally hurts in the right place. Our own sets end under 10 kg.
Load was never the weak point. We hung over 20 kg on it, pulled with both hands, and nothing flexed, slipped or cracked.
TRUE VIEW
See it in action.
Real sets, real gyms. Shot while training, not in a studio.
THE BUILD
What it is made of.
Pulled with both hands on a Matrix cable machine. No flex in the brace, no slip in the pivot.
01 · THE BRACE
Printed solid, not hollow
A thick-walled rigid brace that spreads the pull across your whole forearm instead of one point. That is why it does not flex when the stack gets heavy.
02 · THE HARDWARE
M6 bolt and lock nut
Steel hardware, mounted and tightened before it leaves us. One turn locks the pivot for pushdowns or frees it for curls.
03 · THE STRAP
30 cm hook-and-loop strap
Fits any forearm, lean or loaded. Pull it tight and the attachment stops being a separate object you have to hold on to.
WHAT'S IN THE PACKAGE
Arrives assembled. Ready to clip.
Inside the box: the attachment, with the M6 bolt and nut already mounted. Nothing to assemble, nothing extra to buy. Unbox it, clip it on, train.
The attachment weighs around 150 g, and 200 g packaged.
FAQ
Questions, answered.
Does it fit my gym's cable machine?
Yes. It clips onto any standard cable-machine carabiner, commercial gym or home rack. No adapters, no tools.
What exercises does it cover?
Triceps pushdowns with the pulley high and the pivot locked, and biceps curls with the pulley low. One attachment for the whole arm session.
How is it different from a rope or a straight bar?
A rope loads your grip as much as your arms and lets your wrist cave in. Here the position is held for you, so your grip never ends the set before the muscle does.
How much weight does it take?
More than a single arm can give it. We loaded it well past 20 kg on a Matrix machine, pulled with both hands, and nothing flexed, slipped or cracked. Around 15 kg is the sweet spot, and strict single-arm work needs far less than you would expect.
How fast do I get it?
Orders ship within 2-4 working days. Shipping is free across the EU and every parcel is tracked.
What if it is not for me?
Send it back within 14 days, no reason needed. You also get the full 2-year EU legal guarantee of conformity on top of that.
Free EU shipping
Tracked delivery to every EU country, on us.
14-day returns
Changed your mind? Send it back. No reason needed.
2-year EU guarantee
Your full legal guarantee of conformity under EU law.