I am letting it go of my old bike that I no longer need. I have ridden it in 2013-2014 and never ridden since. I'm not a bicycle expert but I think it's the 26" CCM mountain bike with 17" frame, front disk brake , and has 21 speeds The rubber has gotten old so it has both flat tires due to time passing and gears and chain needs tightening and lubrications.