It seems then Scotty, that you will have to get rid of your 2006? one and get a 2007 registered one or try something different. The ktm not pass?
I think part of the problem is the date they are using for ulez
How much is the ULEZ charge? How to avoid paying
Vehicle type Min. emission standard ULEZ Charge if below emission standard
Motorbikes Euro 3 (all bikes registered since Jul 2007) £12.50
Cars & small vans
Petrol Euro 4 (since Jan 2006)
Diesel Euro 6 (since Sept 2015) £12.50
Vans
Petrol Euro 4 (since Jan 2007)
Diesel Euro 6 (since Sept 2016) £12.50
Lorries & coaches Euro VI (since Jan 2014) £100
if that's right then they maybe using the date of july 2007 as their benchmark rather than bikes who have attained euro 3 before that date and if you can prove the bike is euro 3 then they should be open to updating their data base
https://www.buyacar.co.uk/cars/487/...9-do-you-have-to-pay-the-low-emissions-charge