Did a bit more Googlerising and you are correct. While the Europeans got a raised cap, the US market got a flush cap. 1988~1990 The GS is introduced, replacing the G/S. The US got only the R100GS, but an R80GS was sold in other markets. The major differences between the R80GS and R100GS are: the oil-cooler on the R 100 GS a small 'tombstone' windshield on the R 100 GS 798cc vs. 980cc. The R100GS got 40mm carbs in non-US markets while the rest got 34mm carbs. The differences from the previous generation are: Paralever rear suspension (185mm travel) and 40mm Marzocchi fork (225mm travel), resulting in... More weight and a longer wheelbase, allowing... Larger battery tray to accomodate large or small battery (large was provided). Rear subframe with small rack Painted headlight/instrument nacelle 40mm Brembo dual-piston front brake New centerstand design (pedals curved out) 17" rear rim, cross-spoked wheels allowing tubeless tires. Heavy, though. 6.4 gallon tank with two petcocks. US got a flush cap, EUR got a protruding cap with horizontal tube vent. Stainless steel exhaust with a black cover plate No kickstarter (but available as an add-on). I think all Swiss bikes have the kickstart.