Which Model CX / GL Do You Have?

Remember that with bikes this old, there has probably been some interchanging of parts between models. For example, a CX500Z fitted with a Eurosport engine and B model wheels, yet lacking the flyscreen and polished aluminium radiator shrouds. However the frame number dictates the original model.

Most North American models have only one front disc brake, whereas European variants have twin front discs.

Model
Frame Numbers
Distinguished By

Original CX500 (Z, or zero)

CX500 - 2003736 to CX500 - 2051719

1978 : CX500 - 2000001 onwards

1979 : CX500 - 2100006 onwards

My June 1979 German CX500 has a CX500 - 300xxxx number - technically a Z but I've rebuilt it as an A.

Barrel shaped front brake master cylinder; black tabs where the Comstar wheel spokes join the wheel rims; black plastic one piece radiator shroud; no flyscreen; rear drum brake. Steering lock on the left side of the headstock. Engine breather pipes from cylinder heads to T-pipe junction thence to airbox (the "B" model bottle conversion is often done to these engines).

Early cam chain failure on frame numbers 2000001-2034366

Paint is not metallic; CDI ignition

UK registrations are S, T and V.

All 500s (except Turbo) have mechanicallly-drived fans bolted to the nose of the camshaft.

All 500cc (except Turbo) cylinder heads are interchangeable. ZAB fuel tanks are interchangeable and these also fit the C with minor modifications.

CX500A

1980 : CX500 - 2200013 onwards

 

As "Z" but with rectangular shaped front brake master cylinder; polished aluminium alloy two piece (left and right) radiator shrouds; flyscreen; metallic paint; CDI Ignition, steering lock on the left side of the headstock.

UK registrations are V and W.

CX500B
1981 : CX500 - 2300004 onwards

As "A" but with reversed black anodised Comstar wheel spokes. Steering lock built into the ignition lock. Bottle conversion to engine breather pipes, with direct pipe to airbox and cylinder head breather stubs blanked off during casting.

UK registrations are W, X and Y.

CX500C

1979 : PC01 - 2000017 onwards

1980 : PC01 - 2100018 to PC01 - 2125022

1981 : PC010 - BM200006 to BM212752

1982 : PC010 - CM300001 to CM307389

Custom variant

High handlebars

Teardrop shaped tank

CDI ignition, manual cam chain tensioner.

Rear drum brake

CX500C-B
PC01 - 2200006 onwards

The only UK custom variant. Steering lock on the left side of the headstock.

UK registrations are W, X and Y.

CX500D

1979 : PC01 - 40000006 onwards

1980 : PC01 - 41000002 to 4107865

1981 : PC011 - BM200011 to BM205030

Deluxe custom
CX500E-C
PC06 - 2000029 onwards

"Eurosport" UK and European variant. Black anodised portions of the engine casing; monoshock; air forks. Automatic cam chain tensioner. Twin piston, twin caliper front brake and single twin piston caliper rear brake. Plastic or glass fibre front mudguard. Fuel gauge. Steering lock integral to the ignition lock on this and all subsequent models.

UK registrations are Y, A and B.

GL500

1981 : PC020 - BM00022 to BM007550

1982 : PC020 - CM100001 onwards

Silver Wing. Hard-luggage fully faired tourer; electronic ignition but manual cam chain tensioner.
GL500I

1981 : PC021 - BM000007 to BM004396

1982 : PC021 - CM100001 onwards

Silver Wing Interstate
GL500D-C
not available
UK touring variant

CX500TC

"Turbo"

1982-84

Sample frame number P00-32001081

Sample engine number P00-32001001

Faired turbocharged variant of CX500 Eurosport. 5,343 built, with 5,257 shipped, of which 200 came to the UK. Imports have headlights permanently on; UK models can turn them off. 82 bhp. UK registrations A, B, C
CX650C
1983 : RC110 - DM000018 onwards

Custom. Electronic ignition, automatic cam chain tensioner, twin piston caliper brakes, rear disc brake.

All 650s thermostatically-controlled electric cooling fans.

CX650E-D

not available, but a correspondent quotes RC122002050 as a valid UK frame number. More welcomed

1983-86

UK Eurosport variant. Electronic ignition, automatic cam chain tensioner, twin piston caliper brakes, rear disc brake.

UK registrations are Y, A, B and C.

GL650
1983 : RC100 - DM000004 onwards
650 variant of the GL500.
GL650 D2-E
RC10E - 41001 onwards
ditto
GL650I
1983 : RC101 - DM0000018 onwards
Silver Wing Interstate

CX650T

"Turbo"

1984-6
Faired turbocharged variant of CX650 Eurosport. 1,777 built, with 1,749 shipped, of which 150 came to the UK. Imports have headlights permanently on; UK models can turn them off. 120 bhp. UK registrations B, C, D