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Forum: Classic & Vintage

07-30-20, 12:32 PM

Replies: 18

Bottom Bracket upgrade for Koga Miyata Roadwinner - from roughly 1981?

Views: 3,599

Posted By yonkie

I think that I can post pictures here now, so...

I think that I can post pictures here now, so here's what I am looking at. The red frame is the Koga Miyata - any suggestions on paint touch ups are welcomed. After all of this stuff, why not go...

Forum: Classic & Vintage

07-30-20, 09:33 AM

Replies: 18

Bottom Bracket upgrade for Koga Miyata Roadwinner - from roughly 1981?

Views: 3,599

Posted By yonkie

Those are fantastic! I was going through them...

Those are fantastic! I was going through them the other day. The more I look at it, I think that this is a 1979 frame.

Forum: Classic & Vintage

07-30-20, 08:55 AM

Replies: 18

Bottom Bracket upgrade for Koga Miyata Roadwinner - from roughly 1981?

Views: 3,599

Posted By yonkie

Yeah - these shifters are definitely braised onto...

Yeah - these shifters are definitely braised onto the frame. I imagined that they were standard and I was pretty sure that the Suntour shifters I have would fit the Shimano bosses, but I see that...

Forum: Classic & Vintage

07-28-20, 07:57 AM

Replies: 18

Bottom Bracket upgrade for Koga Miyata Roadwinner - from roughly 1981?

Views: 3,599

Posted By yonkie

Right - so if things look to be in good shape,...

Right - so if things look to be in good shape, not pitted, etc., then I don't have to replace anything?

I think I need some specific tools.

Also, a little advice on down shifters? This...

Forum: Classic & Vintage

07-27-20, 09:04 PM

Replies: 162

Show us your Koga-Miyata!

Views: 67,356

Posted By yonkie

That is just beautiful. I love how you guided...

That is just beautiful. I love how you guided the shifters through the downtime. Great mod.

Forum: Classic & Vintage

07-27-20, 07:42 PM

Replies: 18

Bottom Bracket upgrade for Koga Miyata Roadwinner - from roughly 1981?

Views: 3,599

Posted By yonkie

Also, any recommended makes for a good upgrade? ...

Also, any recommended makes for a good upgrade? I imagine that this site has some limits on product promotion, but I'd like to get a quality replacements/upgrade. Any tool suggestions? Thanks in...

Forum: Classic & Vintage

07-27-20, 07:39 PM

Replies: 18

Bottom Bracket upgrade for Koga Miyata Roadwinner - from roughly 1981?

Views: 3,599

Posted By yonkie

Oh wow. That is exactly what I am doing. I...

Oh wow. That is exactly what I am doing. I included the threaded ends in the measurements. Thanks for that clarification.

I appreciate all of the information & encouragement. Right now,...

Forum: Classic & Vintage

07-26-20, 08:25 PM

Replies: 18

Bottom Bracket upgrade for Koga Miyata Roadwinner - from roughly 1981?

Views: 3,599

Posted By yonkie

Thank you. That makes a lot of sense to me. I...

Thank you. That makes a lot of sense to me. I am trying to put on a Custom triple crankset onto this frame. Is there anywhere to locate standard info on shell width and threading upgrade options? ...

Forum: Classic & Vintage

07-26-20, 08:24 PM

Replies: 18

Bottom Bracket upgrade for Koga Miyata Roadwinner - from roughly 1981?

Views: 3,599

Posted By yonkie

I also need some suggestions for downtime...

I also need some suggestions for downtime shifters for this bike - I'd like them to be vintage as much as possible with some upgrades (the BB, for example) that will keep the style of the bike. My...

Forum: Classic & Vintage

07-26-20, 08:23 PM

Replies: 18

Bottom Bracket upgrade for Koga Miyata Roadwinner - from roughly 1981?

Views: 3,599

Posted By yonkie

I think that I am doing this right, although...

I think that I am doing this right, although something is clearly off. Maybe I'll be able to post the images by the time this discussion is over.

I've got a triple Custom crankset off a 1971...

Forum: Classic & Vintage

07-26-20, 07:39 PM

Replies: 18

Bottom Bracket upgrade for Koga Miyata Roadwinner - from roughly 1981?

Views: 3,599

Posted By yonkie

Bottom Bracket upgrade for Koga Miyata Roadwinner - from roughly 1981?

Hey all,

I have been looking around the web & can't seem to easily find information about this, so I thought I would ask here. I am trying to find out what’s the right size bottom bracket and...

Forum: Classic & Vintage

07-26-20, 07:36 PM

Replies: 162

Show us your Koga-Miyata!

Views: 67,356

Posted By yonkie

Hi all - I will very happily share my pics...

Hi all -

I will very happily share my pics of my 1981 (I think) Koga Miyata that I recently bought, but I was hoping some folks might be able to help me with a technical question. I am trying to...

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