Horse wrote: ↑Wed Nov 08, 2023 7:04 pmHave a look for the 2012(?) TRL review report on conspicuity measures. There's a picture of the TRRL 'ESM' with a prototype DRL (and the astounding 'crash pad' airbag precursor).
That looked like a Joe Lucas fog lamp ...The Spin Doctor wrote: ↑Wed Nov 08, 2023 2:36 pm It's no coincidence that police motorcycles had a single DRL bolted to the fairing for years and years.
I think this pic is from that too.
I got a response y'day on my FB page from the bloke who rode the bike on the original trial which was fascinating! And yes, he confirmed it was a fog light with a clear lens (which were marketed as reversing lights).