1987 Panasonic DX-5000 headset size
09-25-08, 07:17 PM
#1
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Location: Bay Area, CA
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Bikes: Panasonic DX-5000 fixed gear conversion, 1984 Miyata 912
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1987 Panasonic DX-5000 headset size
I think my headset has gone wonky, and I'm looking to replace it. Does anybody know if the '87 DX-5000's headset is ISO or JIS???
As far as I've been able to find out, it was originally a 1" Shimano 600EX sealed headset. Any help is much appreciated!
As far as I've been able to find out, it was originally a 1" Shimano 600EX sealed headset. Any help is much appreciated!
09-25-08, 07:54 PM
#2
Disraeli Gears
Sheldon Brown said of JIS "older or lower-quality bikes from Asia". I'd say that your DX-5000 is neither one, so I'd bet ISO. When finding a replacement, stack is important; make sure that your new one has no greater stack than the one it's replacing. Shimano 600EX had a 39.9 mm stack according to Sutherland's, which is on the high side, so shouldn't be hard to replace. Tange Levin (either the plain one, or the Campy look-a-like which is higher) is a good choice. 600EX sets show up often on eBay, but they require those funky wrenches for the flower-shaped top race and locknut.
09-25-08, 07:55 PM
#3
Unique Vintage Steel
should be ISO.
