Science maxing the brachialis and brachioradialis
Voltra was loaded with 85lbs + 39lbs inverse chains + 15 eccentric overload
Link to Voltra electronic cable stack: https://www.beyond-power.com/?referral_code=ry9Z4MLWCyqrab1Y2
Link to how to build attachment: https://github.com/laynemag/HomeGymDIY/tree/main/handles
The savage strength hammer attachment is a similar attachment as well (does the same thing) if people here don’t want to build the tranman hammer: https://savagestrengthequipment.com/products/hammer-bt-bar