Sakae/Ringyo (SR) Radius
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Category:  Cranksets
Name:  Sakae/Ringyo (SR) Radius
Brand:  Sakae/Ringyo (SR)
Primary Group:  Radius
Model:  
Years:  Early 1990's - ?
Country:  Japan
Added By: vxpro on 06/24/09
Updated By: vxpro on 06/24/09
Additional Photos - click for full size
Sakae/Ringyo (SR) RadiusSakae/Ringyo (SR) RadiusSakae/Ringyo (SR) Radius
Chainring CountDoubleBCD 
BB StyleSquare Taper (JIS)Pedal Threads9/16" x 20 (English)
BB Length Flutes None
Lengths 170Arm/Spider MaterialAluminum Alloy
Front MarkingsSakae RadiusBack Markings
Extractor Threading 22x1mm (Standard)  
General Information
 
Quality:Rarity:
 
 
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Additional Resources
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Resources:Reference & ChartsCatalogsGear Calculator
Component Groups
Primary Group NameBrandQuick InfoBrowse Group Components
RadiusSunTour1990 - 1992, Sport & RecreationView 9 Components
Details:   Early 90's group (found in 92 catalog.)
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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