I have just bought a tyre ( PR3 trail rear) off a net supplier for £106 delivered. I then pay £12 for a fit to a loose wheel. But for a full ride in ride out service at local tyre dealer its £150 for just the rear...!!
On the GS its 5 small bolts and the wheel comes off the single side arm= £32 savings for maybe 10 minutes work !
Longevity wise I have bought this rear cos after just 2k miles the rear has 3.5mm tread left in the middle. I cant recall what the tread depth was new...normally rears are 6mm on 023s for example. As I am doing at least 2000 miles on a euro tour in 3 wks time, I have bought this as a safety net, and If indeed the rear has worn excessively then I will change it over.
Wet weather performance is the best I have ever known, and dry performance seems as good as others, so at this stage for the GS its a great tyre choice. For my fazer I am undecided due to the much larger rear wheel bhp...023 and roadsmarts have been outstanding and up to 5k mileage on the fazer, so I will reserve judgement .But the GS does put its larger torque down a lot harderand punchier than the fazer , so who knows the fazer could wear better. When I had my 1050 speedy that just ate rears, even though its less bhp than the fazer.