Cyclotron Mag II portable Stationary Cycling FOR indoor/outdoor stationary bike training excellent operational, and cosmetic condition except for normal wear and tear character marks (see photos) Winter is the perfect time to prepare for next season - put in the miles in the comfort of your home with Cyclotron. The Mag trainer features smooth magnetic resistance in a folding lightweight steel frame that provides a stable base and is easily transported and stored. Fits wheels from 24" to 29" Features Quiet magnetic unit with 7 resistance levels activated by handlebar mounted thumb shifter Handlebar mounted, 7-level thumb shifter, quickly mounts on handlebars from 22.2mm (7/8") up to 31.8mm (1 1/4") Precision–turned 2" aluminum roller and 1500g (3.3lbs) flywheel Heavy-duty, 100% steel, TIG welded frame with wide stance and tough powder coating that looks great and resists rust Non–skid rubber adjustable leveling feet Tough steel replacement quick-release skewer included Accommodates most 24", 26", 700C, and 27" wheel/tire sizes