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'84 CX650E that is evolving into a GL500
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Unless you are doing a concours level restoration you don't necessarily need a caliper that actually came from a CX500E. Honda used the same calipers on a number of models and I believe they used different part numbers for identical calipers that have the HONDA name in a slightly different location and/or had the paint sanded off of those letters so that they appeared in silver.
Note that they came in several piston sizes as well as variants like the GL1100 Aspencade's wider calipers (to accommodate their thicker automotive style ventilated rotors).

That means if you don't care about inconsequential differences in location or finish of the logo you can use any Honda caliper with the same piston size (except those made for the Aspencade).
The piston diameter is indicated by the number stamped or cast into the end of the caliper as shown in the pic below (if your original left caliper is missing the size should be the same as the right one).

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1982 CX500 Eurosport
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4 Posts
Discussion Starter · #3 ·
Thanks for that info it’s very helpful. Not doing a showroom job but just want it right as it seems the bleed screw has been butchered by a PO so want to be able to bleed the thing properly. Do you know which models had similar callipers?
 

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· Super Moderator
'84 CX650E that is evolving into a GL500
Joined
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19,741 Posts
Of course, those are only the models that came with the same part number. There are lots more with the same caliper but different part numbers because of things like the location of the HONDA and whether the paint was sanded off of it.
 
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