Good Suzuki garage in North London

Hi all again
Just a quick question for some all the london people.
My bike has recently started laying up, A few things to mind i got a F1 on my dash, I got the manual but dont want to start going at something i havent got a clue about.... Also i think now i only think the clutch bearing it gone or is on the way out, I got a K5 by the way and it in good nick just all started to go now. The is a slight clunking sound at low revs and it sounds like its going around in cycles..... I checked out the previous messages about engine noises etc.
Reason i think its the clutch bearing as we i press the clutch the sound goes away only to start again when i release...

So do any of you know a good Suzuki garage in North London or maybe west london...
With the great weather we are having great for biking i want to get out there,, but be safe

Thanks
D

George White in Slough work on mine, never had any problems with them.