the ones on my 748 are fine a sod to fit but then it was the first time i had done it

Well I have a pair of 45mm Microns with said mentioned eBay Termignoni stickers and no-one has ever flagged me up on it yet. Yes, the carbon is gloss finish but the build quality is excellent.

I was talking to a Duke mechanic today who also said the 748 doesn't particularly like 50mm cans and is a pain to set them up. Perhaps something to consider?

mines got 50mm termi's on and it runs fine, think it helps that they were set up at jhp

My 748's got 50mm Termi's and a JHP chip and it runs fine too!

Said Duke mechanic obviously knows dick!

Deej,

You'll find the rear brake packs up at after about 30 uses after a service ..... so most people use it about twice a month ... I never use mine ....

He was probably thinking of a full 50mm system
you'd have to have a highly tuned bike to utilise it properly, a 45 to 50 mm set up (ie standard 45mm downpipes with 45 to 50mm intermediates to the cans ) should be no problem as as pointed out and as on mine a jhp chip about £25 is spot on , mine idled perfectly and fuelling was perfect

Just to put my 2p worth in as a (relitively) new 748 owner who has fitted some of these bits.

50mm Termis (half system) do work OK but you loose a bit in the bottom end tractability. 45mm is apparently best unless you are considering other engine mods such as an 853cc conversion or spend most of your time in the top half of the rev band. Also they are LOUD if this matters to you.

I fitted a slipper clutch as I did find the back end locks when braking hard mostly on the track but it did it in the damp on roads as well.

Rear brake; see above - soo much engine braking rear brake only required for slow speed maneouvering really.