As a result of my searching, I found that 'Extra UK' are now the distributors of Burley parts, but that they don't appear to list parts for trailers pre-2010.
Of course, Burley's US website, from which one cannot order parts if resident outside the USA, does allow one to check by model age, so a little bit of double checking is required against the Burley website to check that parts were okay for with the older 1996- trailers.
We have an aged second hand Cub, which we were running with a Burley Classic Hitch, precluding use on a bike with a pannier rack. The standard forged hitch seemed like a great addition whilst purchasing the replacement flex connector (which does now come with the safety strap, once more).
The part numbers and names for the items I purchased via my LBS are:
- Flex Connector for Square Tow Bar (Burley Item No: 950038) (Extra UK: BU950038) = £14.99
Standard Forged Hitch (Burley Item No: 960041) (Extra UK: BU960041) = £17.99
I mentioned that I had the 'Extra UK' part number and the guy seemed grateful. However, he then was unsure if the part worked for the Cub trailer, so I needed to reassure him I'd done my research.
Link to the spares list for 2010 is here: Burley UK distributor trailer spares list
Hope this helps others - obviously, I have no affliation with Burley, Extra UK, or any bike shops, just wanting to share the knowledge to save others time.
Interesting to hear about the warning about not using in sub-zero temperatures. Guess the plastic is too brittle to function as designed in low temps. Shame they haven't engineered a redesign given their location up in a coldish part of the US...
Kind regards,
James