Does anyone know for sure what stem clamp diameter I would need to replace handlebars on this early 80s Miyata 710 (I think it’s 1982, but not certain)? I’m guessing 26mm, but I have seen other sources lead me to believe it’s 25.4, if not another, more obscure size. I assume the current stem is original. The stem says “custom” on it, and the bars say “Sakae Custom Japan” on one side of the stem and “road champion” on the other side.
Ultimately, I am looking to swap these bars out for something wider that would fit a Wald 1372 basket and be more comfortable.
I would appreciate any insight people might have. Pics below.
by bicycle__
7 Comments
Japanese bars of that era were almost all 25.4mm. Nevertheless, get yourself a vernier calliper and measure it. Every good toolkit should have a vernier calliper.
Here’s the 1982 Miyata catalog showing a red 710, with specs, but doesn’t give handlebar diameter.
https://www.ragandbone.ca/PDFs/Miyata%20Catalogue%20PDFs/1982%20Miyata%20Catalog.pdf
Measure it.
That’s a pretty racy bike for a Wald basket. Lovely bike, but not sure its good geometry for a grocery getter.
25.4 clamp diameter.
25,4mm Sr sakae custom 👌👍 a classic
I’d just measure it and be done. It’s probably 25.4, as I can’t see a center bulge. But why spend $75 or more on new bars without first spending $10 on vernier or digital calipers?