Hello all, looking for a bit of help on this one please. A friend has asked me about his bike, seemed pretty straightforward to start with - looks like a 1982 Miyata Team. Nothing is ever straightforward with old bikes though, the headbadge, fork decal, Tange Champion decals all belong more on a Koga Miyata FullPro.

Would there have been any mixing up of the decals between the two? So Koga Miyata's with the Team Miyata decal or the other way round? Or a FullPro with some Team Miyata decals added at a later date? Or the other way round? Or something else altogether?

The components are a mix of Shimano 600 derailleurs, Suntour Superbe chainset and brakes and other odds and sods. One of the shifter bosses has snapped off and clamp-on suntour shifters have been added. I guess it was all added at a later date.