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Miyata MT1000

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Miyata MT1000

Old 04-12-17, 08:29 PM
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Sahn
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Miyata MT1000

Anyone know anything about this model? From the serial # it appears to be an '87. It's red with internal routing of cable. Besides the unfortunate holes in the top tube, are there any differences (good or bad) from the "standard" 1000?

Any help would be great - no mention of this model in Miyata catalogs on-line that I could find.
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Old 04-13-17, 04:03 AM
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Can you post some pics? Or links to some pics?
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Old 04-13-17, 05:29 AM
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It may be a foreign market model. Alternately, from time to time, Miyata would issue non-catalogued, limited volume models based on current models. Often, these were only available to the top dealerships.
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Old 04-13-17, 07:03 AM
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Miyata MT1000

Thanks T-Mar. Most likely, then, the difference is simply the decal? I have a 610 and the frame looks identical and has the "1000" fork.

Is the internal routing of the brake cable a structural issue for full touring? There's no sign of stress now. Also, for the quality of the bike, the execution is a little cheesy... Rubber grommets... I was concerned this was a DIY project. Did Miyata actually rout the cables this way on any models? Or was this part of the "MT"?

Thanks!
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Old 04-13-17, 07:40 AM
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My Miyata 312 has internal routing with grommets but without pics of your bike it's hard to compare. Internal routing is definitely a place for moisture to get in the top tube. I owned another 312 25 years ago and it started to crack at the cable entry point. I was a heavy and somewhat hard rider back in the day and didn't know the bikes history.
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Old 04-13-17, 08:04 AM
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Top tube cracking at the brake cable entry and exit ports is a known failure mode on late 1980s Miyata with the plug-in rubber/plastic grommets. It's pretty hard to quantify and state the probability of failure but I've seen a handful of cases, so it definitely warrants regular inspection.
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Old 04-13-17, 08:17 AM
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Miyata MT1000

I feel a little better now, Clubman. The routing certainly looks like it was factory done. The only reasons I questioned it were 1) I have never seen it on a Miyata (but I'm very obviously no expert) and 2) it doesn't make a lot of sense on a bike intended to be loaded down and ridden in bad weather.

I'll try to get some pics up once it's back together... thanks for the help.
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Old 04-13-17, 10:15 AM
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This is only link to MT1000 pics I have been able to find with a Google search:

MT-1000メンテナンス - ggg-papaと小径車

Is that the bike you have?
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Old 04-13-17, 10:21 AM
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Miyata MT1000

Wow! That's it! Even looks like the same size.
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Old 04-14-17, 08:49 AM
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Originally Posted by noobinsf View Post
This is only link to MT1000 pics I have been able to find with a Google search:

MT-1000メンテナンス - ggg-papaと小径車

Is that the bike you have?
Given that the website is Japanese, this supports the suggestion of a foreign (non-American) model.
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Old 04-14-17, 12:31 PM
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So MT doesn't stand for Montana.

Not a bad looking bicycle. I'd think there would be something you could do to lessen the likelihood of moisture infiltrating the top tube. I have one bike with internal cable routing, but it doesn't get ridden in crappy weather. Eager to see what options there might be, regardless.
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Old 04-14-17, 03:20 PM
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The plastic grommets look the same as on my bike except routed on the other side. I suspect these grommets keep the moisture trapped, causing premature rusting, not unlike top tube cable guides. Those are easier to clean and maintain. I haven't and wouldn't try to remove 30 year old plastic bits.
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Old 04-14-17, 06:51 PM
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Miyata MT1000

Now that you mention it - my front cable port is on the other side as well.

I'd like to figure out a way to restore the integrity and avoid the rust issue. To someone that knows what they are doing (which is not me) it can't be that hard. Besides, on THIS bike, I think an exposed brake cable with guides just looks "correct".

I need to get it back together and get some miles on it to see if it's worth it.
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Old 04-14-17, 07:22 PM
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Not sure it's worth the effort to modify the cable run and seal the tube holes. It is what it is and it's totally safe as long as you inspect it once in awhile. It's an unusual looking bike,a tourer with lower level components and great racks. Look forward to pics.

Last edited by clubman; 04-14-17 at 07:27 PM.
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Old 04-14-17, 08:52 PM
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Miyata MT1000

let's see if this works...
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Old 04-15-17, 06:29 AM
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Originally Posted by Sahn View Post
let's see if this works...
Cool!

Post more pix!!!
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Old 04-15-17, 06:38 PM
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Yours looks much nicer than that other example. Close ups and a description of the parts would be great when you find a moment.
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Old 04-15-17, 11:45 PM
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Originally Posted by clubman View Post
It's an unusual looking bike,a tourer with lower level components and great racks.
The components I see on that bike (not the OP's) are much newer than the frame.

I think that's the 84/85 decal scheme for Miyata. With it being Miyata, with the nifty cable routing, my guess the parts would have been the top of the line parts from whatever manufacturer was specced. XT for Shimano, XC for Suntour.
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Old 04-16-17, 07:00 AM
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I've seen this bike in person at my favorite LBS; it looks like a really nice bike. I believe it was set up with 650A wheels.
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Old 04-17-17, 11:08 AM
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Miyata MT1000

Small world... Mike has been great to work with... patient, fair and just seems like a nice guy.
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