Sakae/Ringyo (SR) Ovaltech
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Category:  Chainrings
Name:  Sakae/Ringyo (SR) Ovaltech
Brand:  Sakae/Ringyo (SR)
Model:  
Years:  1980's - ?
Country:  Japan
Added By: gitanesteel on 03/06/11
Updated By: gitanesteel on 03/06/11
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Sakae/Ringyo (SR) Ovaltech
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Identifying MarksBCD 110 / 74
Tooth Count Range48, 38, 28Ring Position
Chain PitchHalf Inch (modern standard)Chain Width3/32"
MaterialSteel  
General Information
These are steel elliptical chainrings with the SR Ovaltech sticker that were set up with a triple crankset in 48-38-28 configuration.
Quality:Rarity:
 
 
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Additional Resources
Marketplace:Looking to buy one of these?Sell one like this
Resources:Reference & ChartsCatalogs
Brand Information(click to expand)
Date of Manufacturing / Production Code for SR seatposts (at least for the 80's):
The date of prodcution of SR (Laprade) seatposts is shown around the min.insert line as follows:
"letter"-"double digit number", e.g. F-81 oder L-81, while the letter should be the month and the number will be the year of production.
So F-81 seems to be June 1981 while L-81 would indicate December 1981.
(in-line with the code 1 examples on vintage-trek.com...)



 
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