R1100GS 1999 vs 1390 Super Adventure R 2026

If straight-line speed is your priority, the 1390 Super Adventure R takes the lead. With 91 HP more than the R1100GS, it offers a more spirited ride that will be noticeable on highway overtakes or track days. When it comes to agility, the R1100GS has a clear advantage. Weighing in 5kg less than the 1390 Super Adventure R, it will feel significantly easier to handle in low-speed traffic, parking maneuvers, and twisty corners. Riders with a shorter inseam should lean towards the R1100GS. Its seat height is 40mm lower than the 1390 Super Adventure R, making it much easier to flat-foot at stoplights and increasing confidence during stops. Bottom Line: While both are capable, the 1390adventure offers a superior power-to-weight ratio, making it the more exciting machine for experienced riders.