For street use, your front tire should be at 37-40psi. Although the bike will feel just fine with 32psi in the front, modern radial tires will develop a strange wear pattern with low air pressures, particularly if you ride for long distances on hot days at freeway speeds.
For best handling off-road, reduce your tire pressure to about 20-22 psi front, 22-25psi rear. If you do this, bring a small air pump to get the tires back up to 37-40 when you get back on the road. Reducing tire pressure for off-road makes a huge difference in the bike's stability.
Generic information on tires is here.
Alternatives include:
Good deals on tires can be found at:
Engine and transmission | |
---|---|
Displacement: | 1170 cc (71.39 cubic inches) |
Engine type: | Two cylinder boxer SOHC w/ counter balance shaft |
Power: | 98.00 HP @ 7000 RPM |
Torque: | 84.8 ft.lbs @ 5500 |
Compression: | 10.0:1 |
Bore x stroke: | 101.0 x 73.0 mm (4.0 x 2.9 inches) |
Fuel system: | Injection |
Valves per cylinder: | 4 |
Cooling system: | Oil & air |
Gearbox: | 5-speed |
Final drive: | Shaft drive |
Top speed: | 125 mph |
Physical measures | |
Dry weight: | 438.7 lbs |
Seat height: | 33.1 or 33.9 inches |
Wheelbase: | 64.6 inches |
Overall length: | 87 inches |
Overall width: | 36 inches |
Overall height: | 56.3 inches |
Fuel capacity: | 5.28 gallons including 1.06 gallon reserve |
Chassis and dimensions | |
Frame type: | Three-section composite frame consisting of front and rear section, load bearing engine. |
Front suspension: | BMW Motorrad Telelever; stanchion diameter 41 mm, central spring strut, spring pre-load 9-way adjustable |
Front suspension travel: | 190 mm (7.5 inches) |
Rear suspension: | Die-cast aluminum single-sided swinging arm with BMW Motorrad Paralever; WAD strut (travel-related damping), spring pre-load hydraulically adjustable, rebound damping adjustable |
Rear suspension travel: | 200 mm (7.9 inches) |
Front tire dimensions: | 110/80-ZR19 |
Rear tire dimensions: | 150/70-ZR17 |
Front brakes: | Double disc, 305 mm (12.0 inches) |
Rear brakes: | Single disc, 265 mm (10.4 inches) |