On the 1300 all you have to do is snip off the 2 angled tabs off a h4 bulb, perfect fit after that :-)Sent from my SM-T710 using Tapatalk
Are the OEM bulbs not standard? Or a different standard?
Yeah I found that too, and I wondered why. I thought H4 was the mechanical standard. Are the OEM bulbs not standard? Or a different standard?
The ST1300 bulbs are not standard, but a specific Honda part. Uf you use a standard H4 globe, simply cut off the bottom two tags, and it will sit fine in the mount, with no need for an adaptor plate.
Have a look on the bottom side Alan, there may be two little dimple tabs pointing up that might stop the bulb going in properly. you can see them in the pic , on the right. I think the standard H4 has them a little further apart. just cut them off.