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can you date these brakes

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Old 05-20-07, 07:46 AM
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can you date these brakes

Does anybody know when these Shimano 105 single pivot brakes were around?
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Old 05-20-07, 08:11 AM
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The 105, single pivot, SLR brakes were produced for the 1987-1989 model years, but I don't recall them having that style of adjuster. The back of the arms will have a two letter date code which you can decypher using the information on the Component Dates page of the Vintage-Trek website.
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Old 05-20-07, 08:13 AM
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Mid to late 80'2 early 90's. My Shogun has them, and was built in 1987.
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Old 05-20-07, 08:34 AM
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I have a 1986 Shimano L group brake with the SLR logo which really looks the same as yours.
It's a BR-L490 (made in '86-'88). I don't know the L group and where it is placed in hierarchy (same with that Z group...)
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Old 05-20-07, 08:35 AM
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Aah, according to the markings "MG" in was July, 1988.
Thanks for the usefull info.
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Old 05-20-07, 10:41 AM
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My Rossin came with those, it's mid-80's but when the first owner gutted it from all the Campagnolo, he put on equal vintage Shimano, but the adjuster looks like something Dura Ace, not sure what vintage.
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Old 05-21-07, 12:57 AM
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Originally Posted by sykerocker
My Rossin came with those, it's mid-80's but when the first owner gutted it from all the Campagnolo, he put on equal vintage Shimano, but the adjuster looks like something Dura Ace, not sure what vintage.
Its 105, and manufactured in August 1988.

I'm quite new to the whole bicycling thing. These two sites are good for dating any Shimano part (in case any of you guys don't already know this)
1. Trek Vintage
2. Some German site, but the numbers are pretty universal

Thanks for all the usefull info.
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