Double loop tubular frame with bolt on rear section
Front Suspension
∅40mm Marzocchi
telescopic
hydraulic forks.
Front Wheel Travel
225 mm / 8.8 in
Rear Suspension
BMW Paralever swinging arm
Rear Wheel Travel
180 mm / 7.0 in
Front Brakes
Single ∅285mm disc
Rear Brakes
∅200mm Drum
Front Tyre
90/90 x 21S
Rear Tyre
13/80 x 17S
Dimensions
Length 2290 mm / 90.1 in
Width 1000 mm / 39.3 in
Height 1165 mm /
45.8 in
Wheelbase
1514 mm / 59.6 in
Ground Clearance
200 mm / 7.87 in
Seat Height
850 mm / 33.5 in
Wet Weight
210 kg / 462 lbs
Fuel Capacity
24 L / 6.3 US gal
Average Consumption
6.3 L/100 km 15.8 km/l / 37 US mpg
Braking 60 km/h - 0
16.0 m / 52.5 ft
Braking 100 km/h - 0
46.3 m / 152 ft
Standing ¼ Mile
13.7 sec / 149.6 km/h / 93 mph
Top Speed
170.4 km/h / 106 mph
An upgraded bike arrives with a new rear
suspension, the paralever in place of the monolever. A change also for the
name, the most visible is that the '/' between the G and the S disappears, but
also the meaning of the letters changes. Now, the S is for Sport (in place of
Strasse, "street" in German).
The monolever, the mono suspension flexible arm contains the drive shaft, but
this one is dry
The rear wheel is fixed by 4 lugnuts in place of the previous 3.
The major differences between the two bikes are :
the oil-cooler on the R100GS (strangely placed on the right engine protection
bar);
a small windshield on the R100GS;
the engines :for the R80GS : 798 cm³, 84,8mm x 70,6mm, 50 hp (37 kW DIN) at 6500 rpm, 61 Nm
at 3750 rpm, Compression: 8,2:1, 2 Bing carburators 32mm, 5 speeds;
for the R100GS : 980 cm³, 94mm x 70,6mm, 60 hp (44 kW DIN) at 6500 rpm, 76 Nm
at 3750 rpm, Compression: 8,5:1, 2 Bing carburators 40mm, 5 speeds.
The differences from the previous generation are :
the rear suspension;
the rear frame with small rack;
the fork (40mm Marzocchi in place of 36mm BMW);
the front brake (not better, unfortunately);
the centerstand design (pedals curved out);
the wheels (rear 17'' diameter vs: 18'') with rim-mounted spokes (to permit a
tubeless tire);
the small external tachometer and clock on the outer sides of the plastic
dashboard (maybe an option for the R80GS);
the tank with two petcocks (24 lit./5,8 gal. vs: 19,5 lit./5,1 gal.) and the
vent tube goes horizontaly;
the tool box under the seat;
the styling (side panels, rounded tank with knee depressions, the mirror and
the seat goes on the tank);
a stainless steel exhaust with a black cover plate (smaller than the R80G/S PD
and the R80ST);
the 12v/25Ah battery in place of a 12v/16Ah;
the weight : 210 kg;
no kickstarter (but available as an add-on).