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Show us your Koga-Miyata!

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Show us your Koga-Miyata!

Old 09-11-21, 01:21 PM
  #126  
JaccoW
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Originally Posted by lubloi View Post
Since you can never have too many Koga Miyatas, when I saw an ad for a GranTourer frameset for about 40 euros, I didn't hesitate. It's a 66cm frame - finally a bike in my size! Paint is excellent shape, no rust internally or externally. FM-2 main triangle, HM-2 rear triangle and fork. This exact bike in this exact color is in the 1985 brochure, featuring 22mm tires. They had different ideas about touring in the 80s. I will build it up with 650b wheels so that I can fit 38mm tires.
Awesome looking tourer. Those chrome socks are in great shape! Yeah those early tourers were definitely more road bike with fenders than the 50mm tyre stiff behemoths of today. Any ideas of the brake calipers you want to be using?
Curious to see what 650B looks like on a frame that size. I might use it on my own tourer project in the future. The Graveller can fit 42-622 tyres at the moment with fenders (40mm measured) but wider would be nice.
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Old 09-11-21, 02:19 PM
  #127  
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Yeah, zero rust on the chrome. I've always wanted to have a bike with chrome socks, and now I finally found one. Not sure about the brakes yet, I have a set of old dual-pivot sidepull Altenburger Synchrons that I will try first. If their stopping power is insufficient, I'll get something more modern (e.g. Tektro, Longus, Saccon). I calculated that I will need about 75mm of brake reach with 650B rims, and the Altenburgers go up to 80mm. Even with 650B, tire width will be limited to around 40mm, because the chain stays are about 45mm wide.
It's going to take weeks to build up this bike. I already found second hand Exage LX500 and Deore XT/LX shifters, crankset, hubs, and derailers (function over form, I'm not worried about keeping it original), but the rims and tires I'm trying to order are out of stock. I will certainly post a picture when it's finished.

Last edited by lubloi; 09-11-21 at 02:28 PM.
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Old 09-12-21, 12:50 PM
  #128  
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1987 Koga Miyata FullPro


1987 Koga Miyata FullPro
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Old 10-02-21, 10:19 AM
  #129  
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The 1985 GranTourer is now rideable. Some details need more attention (e.g. ugly cable stop on downtube). I was planning to build 650b wheels for this bike but I couldn't find rim brake compatible rims with 36 holes anywhere in Europe in size ERTRO 584. I could have bought them from the US for 6 times the normal price plus shipping, but that seemed excessive, so instead I took these wheels from my 1975 Presto road bike. They have fairly wide rims with 32mm Marathons, so they were not ideal for a roadbike anyway. For the Presto I built a new wheelset with lighter, narrower rims and 28mm Paselas, using a nice set of old Shimano 600 hubs I had.

The Altenburger Synchron brakes turned out to be excellent and very powerful brakes. It helps that I had to slide the pads all the way to the top of the slots to fit the brake tracks, so that provides a little bit of extra mechanical advantage.

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Old 10-02-21, 09:49 PM
  #130  
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finally got the Roadwinner together and took it for a decent pedal today .
Everything seemed to work and the ride was very pleasant.
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Old 10-18-21, 01:51 PM
  #131  
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Originally Posted by JaccoW View Post

IMHO Koga(-Miyata) buyers are generally more affluent or older people that are willing to spend for high-quality pre-made bikes. They are generally well-thought out and offer plenty of innovation without going full proprietary like Gazelle has a tendency to do.
Which nowadays makes for some well-maintained second-hand bikes.
you wrote "Koga(-Miyata) buyers are generally more affluent or older people"

Well, I bought my Koga Miyata Radonneur when I was 27, not really old, neither affluent, but just graduated from University and my first salary went on the Koga Miyata.
Now I am 67 and I am still riding the Koga albeit updated, modernized with 11 speed and more commuter / touring friendly handlebars.

It is still a brilliant bike and my son rides the same bike just a few years younger than mine.
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Old 10-18-21, 02:02 PM
  #132  
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a it late for your needs but I replaced my shimano cup and cone BB with a SRM GRX BB and it works perfectly
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Old 12-04-21, 10:36 AM
  #133  
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1980 Full Pro

Just completed this morning and excited to ride it. Never ridden a Koga Miyata before so another first!


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