What are these? Extra parts from the parts box
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They are the same front brake set up from a twin disc CX Eurosport, 500 or 650. Not sure if the same on other models but th top calliper includes the mechanism for the TRAC anti-dive unit.
Well that's cool enough
Not exactly. The actual mechanism for the Trac is inside the fork leg. What you have is the combined caliper bracket & lever for mounting the caliper on a fork with TRAC. The caliper can be unbolted from the bracket and should fit a bracket from non-TRAC forks (like yours).
And you have two left calipers (a set from a dual disc bike would have a left and a right).
Based on the aftermarket reservoir cover it looks like the master cylinder and the caliper with the TRAC bracket are probably from an '83 GL1100 or a GL1200 GoldWing ('84-'87). '82 GL1100s came with two 2 piston calipers, both operated by the lever/master cylinder on the handlebar but from '83 on GoldWings had the "linked" brake system where the handlebar lever operated just the left front caliper and the rear and right front calipers are operated by the foot pedal and rear master cylinder.
On any case it looks like you have a spare master cylinder and a couple of spare calipers that can be used on your '82 CX500C if they are in good condition so I'd hand onto them.
And you have two left calipers (a set from a dual disc bike would have a left and a right).
Based on the aftermarket reservoir cover it looks like the master cylinder and the caliper with the TRAC bracket are probably from an '83 GL1100 or a GL1200 GoldWing ('84-'87). '82 GL1100s came with two 2 piston calipers, both operated by the lever/master cylinder on the handlebar but from '83 on GoldWings had the "linked" brake system where the handlebar lever operated just the left front caliper and the rear and right front calipers are operated by the foot pedal and rear master cylinder.
On any case it looks like you have a spare master cylinder and a couple of spare calipers that can be used on your '82 CX500C if they are in good condition so I'd hand onto them.
thank you, this is super helpful. I've been interested in a way to upgrade to a two pot caliper but hadn't gone into the research too much outside of not wanting to mess with a front end swap any time soon.
Your 1982 CX500C should already have a 2 piston caliper.
i...don't know why i thought it was single piston. long morning and probably thinking dual disc
It's pretty easy to convert from single piston to dual; Properly you should replace the disc as well as the caliper but some have kept the old disc and just live with the pads only keeping part of the disc clean.
Converting to dual calipers involves finding suitable replacement forks, (or at least fork sliders) that both have the lugs for the calipers (in the correct places) and are leading axle type.
Converting to dual calipers involves finding suitable replacement forks, (or at least fork sliders) that both have the lugs for the calipers (in the correct places) and are leading axle type.
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They look the same as my 1982 GL500 calipers.
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