Sakae/Ringyo (SR) AX-5LA, APEX-5LA
Main Photo
Category:  Cranksets
Name:  Sakae/Ringyo (SR) AX-5LA, APEX-5LA
Brand:  Sakae/Ringyo (SR)
Model:  AX-5LA
Years:  ? - 1980's
Country:  Japan
Weight:  590 grams (Spec)
Added By: JFischer on 12/31/10
Updated By: Da.Rav on 05/02/17
Additional Photos - click for full size
Sakae/Ringyo (SR) AX-5LA, APEX-5LASakae/Ringyo (SR) AX-5LA, APEX-5LASakae/Ringyo (SR) AX-5LA, APEX-5LA
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Chainring CountDoubleBCD 144mm
BB StylePedal Threads14mm x 1.25mm (French);
9/16" x 20 (English)
BB Length Flutes Crank Arm; Spider
Lengths 165; 170Arm/Spider MaterialAluminum Alloy
Front MarkingsSR ApexBack Markings
Extractor Threading 22x1mm (Standard)  
General Information
Rings interchangable with Campagnolo and SR Royal (144BCD).  The Super Light model came with the drilled chain rings, and was approx 25g lighter than the standard 5LA model.
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Additional Resources
Resources:Reference & ChartsCatalogsGear Calculator
Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 2)BrandGroup
Sakae/Ringyo (SR) AX-5LASL, APEX-5LA Super LightSakae/Ringyo (SR)
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

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