It has approx. 100,000 mi on it (I'm the third person to ride it as a training bike~~so they're not all miles put on by me *tho, I wish*). OH, it's a 1997 Mongoose RM1.0. Back before Mongoose sold out to Wal-Mart/K-Mart they actually made solid bikes. It still has some of the original Shimano 600 parts (brakes are it, I think) but most have been replaced as they wore out (it's still an 8spd. Ultegra set-up, tho). Makes a FANTASTIC training bike!