Made a mistake trying to buy replacements through amazon.
Was looking for an indoor exercise bike and came across this one. So glad I did! Bike is made of quality materials and is sturdy when assembled. I like using the digital readouts when I'm riding as well. In my opinion a very fair price and great overall value.
Marcy 7ft Olympic Barbell 30lbs with 15.5 inch Loadable Sleeves | TRB-84
It fits and works perfectly. The adapter and quality is outstanding.