Most steel frames featured brazed lugs. A few Miyata models were welded. For 1983, the first year, the RidgeRunner frame was partially welded, partially fillet brazed.

For tubing Miyata used Miyata FM-1 HardLite SpiralSpline Triple Butted Crome Molybdenum. Hello, you are still there? Besides this was Miyata's way to express they use high quality steel all those definitions mean something. SpiralSpline for example is spiralshaped butting. On right you can see a TT pictured. Click pic to enlarge.

1986 Koga Miyata RidgeRunner SE - Price in 1986: 2495 Dutch guilders. Provide me with more data in case you have.

1988 Koga Miyata RidgeRunner - Full XT bike. 

I on my 1988 Koga Miyata ValleyRunner.

Click pic for brochure pic.

Greg on his 1989 Koga Miyata RidgeRunner.

Click pic for brochure pic.

1990 Miyata RidgeRunner Team - HBalls 1990 DH   WCS winning bike!

By clicking the pic you will be led to an article on the MTBR VRC board covering H-Ball's bike.

Click image for extensive photofootage. BTW look out for this particular bike! This RidgeRunner Team # RS58561 got stolen in the Albuquerque, NM area.