Sakae/Ringyo (SR) AX-5MA, APEX
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Category:  Cranksets
Name:  Sakae/Ringyo (SR) AX-5MA, APEX
Brand:  Sakae/Ringyo (SR)
Model:  AX-5MA
Years:  1977 - 1980
Country:  Japan
Weight:  617 grams (avg)
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Added By: cinco on 11/06/07
Updated By: Da.Rav on 05/02/17
Additional Photos - click for full size
Sakae/Ringyo (SR) AX-5MA, APEXSakae/Ringyo (SR) AX-5MA, APEXSakae/Ringyo (SR) AX-5MA, APEXSakae/Ringyo (SR) AX-5MA, APEXSakae/Ringyo (SR) AX-5MA, APEXSakae/Ringyo (SR) AX-5MA, APEX
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Chainring CountDoubleBCD 130mm
BB StyleSquare Taper (JIS)Pedal Threads14mm x 1.25mm (French);
9/16" x 20 (English)
BB Length 119mmFlutes Crank Arm; Spider
Lengths 165; 170Arm/Spider MaterialAluminum Alloy
Front MarkingsSR ApexBack MarkingsJapan {date code}
Extractor Threading 22x1mm (Standard)  
General Information
Appears in 1980 SR catalogue. Date code 77 K on driveside only. Weight is with all chainring bolts.

This crank had previously been mis-identified as a Super-Apex model.  However after closer inspect it has been found to be one of the standard APEX models.
Quality:Rarity:
 
 
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Component VariationsView Detailed List  Manage Variations
Variations of Component exist (Component is 1 of 2)BrandGroup
Sakae/Ringyo (SR) AX-5MASL, APEX 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 vintage-trek.com...)



 
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WeightSourceNotesAdded By
624 GramsUnknown JFischer
610 GramsSpec JFischer
Cinelli
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