1989 Klein Pinnacle Elite, its a fantaastic vintage MTB! I have included the frame dropout registration number and the original catalog advertisement for the bike. Klein bikes had some of the best innovations in the sport in the early 1990s including aluminum frames with carbon roson coatings, pressed BB bottom brackets, integrated cable tubing in the frame, one piece aluminum headset and hadlebars, all of which this bike has. Its a excellent product and will surely show you what it feels like to ride a super high end mtb! This bike is super fast as you crank away at the crankset the bike just glides as it feels like it wants to just push right past you on its own. The bikes Shimano deore XT transmission and components are dated but work fantastic and some of the best components Shimano has built in my opinion. Dont miss your chance to own a piece of history there are not any of these being sold and usually are stuck in a high end collection the bike is in stunning condition for its age. Check it out if you need extra pictures please contact or would like to check the bike out in person i am available to show the bike by appointment. Thank you and enjoy cycling!