Araya 20A
Main Photo
Category:  Rims
Name:  Araya 20A
Brand:  Araya
Model:  20A
Years:  Late 1970's - 1990's
Country:  Japan
Weight:  460 grams (Spec), for 700C
Added By: JFischer on 07/31/07
Updated By: blacksand.aotearoa on 11/30/18
Additional Photos - click for full size
Araya 20AAraya 20AAraya 20A
Rim Type ClincherMaterialAluminum
Rim Size24" (520mm); 27" (630 mm);
650c (571 mm); 700c (622 mm)
Spoke Drillings32; 36
Label MarkingsAraya 700cValve DrillingPresta
Rim Height (mm)14.4mmRim Outer Width (mm)19.6mm
EyeletsDoubleSeam Joint Sleeve
FinishHard Anodized; Silver Anodized  
Wheel Lacing Data
Rim Size 24" (520mm)ERD 508.1
Rim Size 27" (630 mm)ERD 618.0
Rim Size 700c (622 mm)ERD 613.0
General Information
This website implies that the 20A was introduced in response to the Mavic Module E, which sounds very plausible:

Earlier decal appears to suffer terrible from sunlight. I have a couple of these where I could only make out the stripes & couldn't ID the rim, until the above image was posted to a Facebook group (permission gained to use image)

ERD for 700c is measured.
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Additional Resources
Resources:Reference & ChartsCatalogs
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