Hey guys, I found something
06-10-19, 05:01 PM
#27
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1983? Likely. Check the Sugino crank for date codes.
06-10-19, 05:12 PM
#28
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06-11-19, 09:57 PM
#29
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Schwinn Le Tour models, of the various designations, with frames made in Japan where made by at least three different manufacturers: Bridgestone, Panasonic, and Kuwahara. Each frame manufacturer has their own serial number formats.
Edit: The OPs frame serial number, as mentioned previously, is a USA serial number.
06-15-19, 07:59 PM
#30
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This post doesn't seem be online any longer. I posted some photos but, after that my thread disappeared. I discovered that the BB didn't need to be changed. I used 6 mm spacers. I noticed on my 30T ring that it was recessed on one side and, the gap was almost perfect. I had to reset the cable 3 times due to stretching. But, I finally got it. The one issue I did have problems with was shifting to the large cog on the freewheel when the front chainring was on the 52T. The chain kept pulling off but, I think I got it finally. I went to the bike shop in my area and, showed the mechanic what I was doing and, he said "those derailleures are ancient" lol!!! Thanks Hudson!!!
06-15-19, 08:12 PM
#31
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This post doesn't seem be online any longer. I posted some photos but, after that my thread disappeared. I discovered that the BB didn't need to be changed. I used 6 mm spacers. I noticed on my 30T ring that it was recessed on one side and, the gap was almost perfect. I had to reset the cable 3 times due to stretching. But, I finally got it. The one issue I did have problems with was shifting to the large cog on the freewheel when the front chainring was on the 52T. The chain kept pulling off but, I think I got it finally. I went to the bike shop in my area and, showed the mechanic what I was doing and, he said "those derailleures are ancient" lol!!! Thanks Hudson!!!
It's great that you got the chain to work on the big/big. Experienced riders will tell you that may not be completely necessary, as that's not a cross-chain combo they would use anyway. However it's always nice when you can get any possible gear combo to function.
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06-16-19, 04:29 PM
#32
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Not sure how thick the spacers are... they're the factory ones. I can measure them sometime in the next day or two. When I took it apart to refurbish it, I was a bit surprised that all three rings used the same bolts.
As far as the BB spindle length, I would assume you'll need a longer one. I never measured the length when I had it apart.
As far as the BB spindle length, I would assume you'll need a longer one. I never measured the length when I had it apart.
06-16-19, 07:29 PM
#34
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GC is '87 but it's really not likely that an '87 bike had top mounted shifters. They were almost always found on 83-84 frames. Your bike looks to be in this 83 catalogue. Arx derailleurs, same crank, correct shifters?
I think maybe the date code is elsewhere on the crankset. Reading thru the thread, this was all covered already.
I think maybe the date code is elsewhere on the crankset. Reading thru the thread, this was all covered already.
Last edited by clubman; 06-16-19 at 07:34 PM.
06-16-19, 08:38 PM
#35
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GC is '87 but it's really not likely that an '87 bike had top mounted shifters. They were almost always found on 83-84 frames. Your bike looks to be in this 83 catalogue. Arx derailleurs, same crank, correct shifters?
I think maybe the date code is elsewhere on the crankset. Reading thru the thread, this was all covered already.
I think maybe the date code is elsewhere on the crankset. Reading thru the thread, this was all covered already.
