Originally Posted by
wearyourtruth
i have a 1985 Sekai 2500 (frame and fork)
it says "2500 series" on the top tube
"Tange 900 CR-MO Double Butted Tubes" on the seat tube
"Japan 1985" on the seat tube
"Touring Series" on the seat tube
"Tange Mangaloy 2001 Manganese Alloy tubing" on the fork
While that's the correct tubing configuration for a 1985 Sekai 2500, we'd still appreciate the serial number. BTW, the original components mix was SunTour Mountech derailleurs, Sugino TGT crankset, Dia-Compe 960 brakes and Araya 16A rims.