Outstanding performance from Norton and Davo ! Why do people put down a British effort ? Is a BMW fitted with k-tech suspension, brembo brakes etc a true BMW ? Or is it just the engine that matters ?

I know, old Nortons didn't always have Norton engines, very good TT for them and thankfully Davo was ok after his crash in the Senior.

So was it the bike last year or Cameron Donald judging by his times this year?

well what a TT for Norton a strong 7th in the superbike race and a 130mph lap as well ,what ever they have done to it has worked and a terrific ride from davo Johnson and still the best sounding bike there well done to all concerned!

I think the frame and engine management systems
Have been reworked from last year.I seen them testing at Jerby asked Mick Grant a few questions, he said they are 18 months away from there own engine based on a Aprilia lump I guess.
Think Cam just had a lot of bad luck this year and if it's not going right you can't go out on the island and push hard

I think the more races the Norton gets the more data collected the more the team can do to improve. I must admit I was impressed with Davo's lap times and a solid finish in the Superbike race, long may it continue and hopefully they will have there own engine in the next few years.