Hi Mark, and welcome. I know all about that London traffic on a bike. My wife would simply close her eyes because as she put it "I trust you, but I don't need to see
BMW is notorious for poor seats and windscreens. My K12GT had an aftermarket windscreen fitted before it left the dealer (the factory screen is still in the factory wrapping). Note that there are "Standard" and "Tall" factory screens so you might want to check which one you have. A Standard measures 21.25" and a Tall measures 24.75". But an aftermarket screen is much better still. And I've pretty much tried them all over the last 95K miles. Check this thread
, specifically post #9
for my recommendations.
As for the seat, again mine got reworked the first day I had the bike. I had a custom seat made by one of the top US seat makers, Bill (Rocky) Mayer
. There aren't many UK/European seat makers that I know of, but you might want to look at a replacement seat from Sargent
, both of whom have UK distributors. I don't know much about Bagster, but Sargent offers a low seat option that can be very helpful for some riders.
The 600-mile service is an engine and final drive oil change, plus checking the bike over and reading any fault codes on their computer. Yes, it seems pricey, but it is a BMW, after all.
Some guys do their own basic service. I let the dealer do mine through warranty, but I do it all myself now.
I also found a local car shop that does the Clear Bra paint protection and had them do my whole bike. It was pricey too, but worth it overall.
The excessive vibration is a puzzler, although it's hard to define "excessive" over the internet.
These bikes are normally very smooth from the start, but there is a break-in period and it will get better as you get 5-10K miles on it. But your mileage is worrisome. I got between 28-34 (US) mpg for the first thousand miles or so, before it settled in at closer to 40 mpg. I have heard of one or two K13's that have had engine issues from the start although it's very rare. I'd suggest you see if Park Lane or another dealer has a low-mileage demo bike that you can start up and maybe even ride to compare.
I'd also keep a real close eye on oil consumption, just in case. It shouldn't use any appreciable amount, even during the break-in period.
Otherwise, the GT is an awesome bike. Its power, agility, comfort, and overall package is simply unmatched by its competition. It'll corner with the sport bikes, and just as easily take you to the Continent so you can play with them, too.
So your best bet is to get out there and put some more miles on it. Take time to bond with the bike, change those things that bug you, and if it breaks, take it back and make them sort it.
'13 Dark Graphite Metallic K16GTLD, 24K miles and counting...
'09 Magnesium Beige Metallic K13GT, 60K miles miles and counting...
'02 Mauve Metallic K12LTC, 106K miles and sold
BMWLT#145, IBA# 366, MOA# 111996, SCMA# 24032
All lower 48 states plus Alaska on the K13GT in two weeks . . .
Some people see the gas tank as half empty. Some see it as half full. All I care is that I know where the next tankful is coming from...