My present R1250GS is my tenth GS in a row and my 4th watercooled one.
So I guess I am able to compare the bigger engine to the previous one.
I ride my GS mainly in the French mountains, often with my wife riding pillion, and in that environment, the differences with the 1200 cc engine are unmistakable .
In Road mode the 1250 is faster and more responsive than the 1200 in Dynamic mode.
Overtaking now rarely requires downshifting anymore, even when in 5th or 6th gear.
Fuel consumption is NOT really down however, due to the more vigorous riding style this engine invites you to.
Anyone owning a 1200, who claims that he/she doesn’t feel any difference when riding a 1250, is trying to convince him/herself not to upgrade to the new version, imho.
The issue of the resonance noise most or all 1250 engines make is bothersome, however, but, as Maturerider pointed out, not all of them suffer from it to the same degree.
Last edited by Slijkmoto; 15-Dec-2019 at 07:18 AM (554).