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Old 01-30-08, 11:55 AM   #1
RFC
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Freewheel options for 1984 Miyata 1000

This is a continuation of our discussion regarding how best to upgrade my 1984 Miyata 1000.

One of the suggestions is that I should buy a 7-speed freewheel.

Nashbar has freewheels for cheap. Are these any good?

Is replacement simply a matter of spinning off the old one (with a Park tool and chain tool) and putting on the new one?

Will I have adequate spacing for the 7-speed freewheel?

Will the stock staghorn deraileur handle the 7-speed on friction mod?

Thanks as always.

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Old 01-30-08, 01:00 PM   #2
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Yes it should work without any need for respacing.


You can get an HG chain, freewheel, and derailleur and upgrade to bar end indexed shifting by combining

these:
http://cgi.ebay.com/Shimano-RX-100-7...QQcmdZViewItem
with these:

found here:
http://www.rivbike.com/search/run?qu...h#product=none

but if you are going to stick with friction I would keep it stock.
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Old 01-30-08, 01:19 PM   #3
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I've had poor luck with Nashbar house brand cassettes - don't know it that would translate to their freewheels or not.
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Old 01-30-08, 01:49 PM   #4
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Quote:
Originally Posted by RFC View Post
Nashbar has freewheels for cheap. Are these any good?

Is replacement simply a matter of spinning off the old one (with a Park tool and chain tool) and putting on the new one?

Will I have adequate spacing for the 7-speed freewheel?

Will the stock staghorn deraileur handle the 7-speed on friction mod?

Thanks as always.

RFC
On my '84 Miyata 610, the rear spacing is 126mm.

Both a standard spaced six speed Shimano SIS freewheel and a Shimano compatible new Sunrace 7 speed freewheel required 130mm spacing to eliminate chain rub against the drive side drop out when on the smallest rear cog.

Given that the 4mm of driveside spacers would have required paying to redish the original 40 spoke rear wheel with the real nice Suntour sealed bearings, and weakening it to boot--I stepped back from this path.

Instead, the original very stout wheelset went to BF member Moki in Winnipeg, and I'm just now getting together a new wheelset with Deore LX 130mm OLD hubs (respaced from 135mm), Mavic A719 rims and double butted spokes. Be still my heart, I can't wait to see this fruit of all those bike flips.
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Old 01-30-08, 02:24 PM   #5
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Nashbar still has new down tube SIS 7 speed shifters for cheap.
http://www.nashbar.com/profile.cfm?c...s%20%2D%20Road

Quote:
Originally Posted by cyclotoine View Post
Yes it should work without any need for respacing.


You can get an HG chain, freewheel, and derailleur and upgrade to bar end indexed shifting by combining

these:
http://cgi.ebay.com/Shimano-RX-100-7...QQcmdZViewItem
with these:

found here:
http://www.rivbike.com/search/run?qu...h#product=none

but if you are going to stick with friction I would keep it stock.
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Old 01-30-08, 04:01 PM   #6
Az B
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Another option; this is my '82 Miyata 610. I shredded a tire on a ride and had a hard time finding a 27" replacement. I decided to try 700c wheels. I found a pair of used Ultegra/Open Pros complete with a cassette for $100. They bolted right up. Some minor tweaking of the derailleur limit screws and the brake pads to position them correctly, and voila, 9 speed downtube friction shift. It was super easy.



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Old 01-30-08, 04:12 PM   #7
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... I decided to try 700c wheels. I found a pair of used Ultegra/Open Pros complete with a cassette for $100. They bolted right up. Some minor tweaking of the derailleur limit screws and the brake pads to position them correctly, and voila, 9 speed downtube friction shift. It was super easy.

Az
That is an even better idea.
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