Vintage Klein Pinnacle Mountain Bike

Early 90 s Klein Pinnacle. 18 aluminum frame. Small dent on top tube. Scratches and scuffs. No cracks. 1 water bottle boss spins free in the frame. 18 seat tube measured center to top. I believe its size small in Klein Sizing. 211/2 top tube. 28 standover. Im 59 and this bike does not fit. Maybe some 15 ft to 5 ft 7. Shimano comp 1 nts. Wheelset does not match but both hoops are silver and have a similar profile. 26 x 2.0 tires. Back rim is slightly out of true. Cash or Venmo 559-385-0479