On the left is the type typically found in the Honda CX500 (including Turbo) and GL500 bikes; the GL650 often had this type in some countries as well. On the right is the type found in the CX650C Custom, CX650E Eurosport and CX650 Turbo – along with some GL650s in some countries.
The final shafts are cross-compatible – if you end up in a scenario where you swap, for example, a CX650C engine into a CX500 frame you can put the CX500’s final shaft into the CX650’s motor so that it hooks up properly to your driveshaft. The 500 variant uses a bolt that fits through a groove in the end of the drive shaft, which is visible on the left below. The 650 variant uses a snap ring in a much smaller groove and a spring on the final drive end to keep the drive shaft correctly positioned.
There’s no performance benefit or upgrade to be found here, just a matter of having the right one to get drive from your motor to your wheel!
The part numbers are below. If you take a look at the Honda product codes you’ll see that the actual shaft itself on a CX500 was first used on a GL1000…
If you need a part, click on the part number to go to a source.
| Item | CX500/GL500 Part Number and source | CX650 Part Number and source |
|---|---|---|
| Final shaft | 23521‑415‑000 | 23521‑MG0‑000 |
| Damper lifter | 23721‑415‑000 23721‑449‑000 23721‑MA1‑000 | 23721‑MA1‑000 |
| Damper cam | 23722‑415‑000 (CX500) 23722‑MA1‑000 (GL500) | 23722‑MC7‑000 |
| Damper stopper | 23731‑371‑000 | 23731‑371‑000 |
| Damper spring | 23732‑415‑000 23732‑MA1‑000 | 23732‑MA1‑000 |
| Spring collet | 23733‑371‑000 | 23733‑371‑000 |
| Bearing | 91005657003 91005657004 91002PL0008 91002PL0018 | 91005657003 |
| Oil seal (22x36x7 with lip) | 91202‑415‑003 91202‑415‑004 91202‑MC7‑000 | 91202‑MC7‑000 |
