Buell 1125R


Buell 1125R 2008
Category: Super Sport


Type: Liquid-cooled 1125cc Helicon® V-Twin
Valve Train: DOHC, 4 valves per cylinder, finger follower design and shimming
Bore x Stroke: 103.00 mm x 67.50 mm
Displacement: 1125 cc (68.7 cu. in.)
Compression Ratio: 12.3:1
Fuel Delivery: Dual 61 mm down draft throttle bodies, DDFI III fuel injection
Intake: Zero-resistance airbox, Pressurized RAM air intake
Exhaust: Tuned, tri-pass resonance chamber with integral helmholtz tuning and mass-centralized mounting
Torque: 111 NM @ 8000 RPM (82 ft. lbs. @ 8000 RPM)
Horsepower: 109 kW @ 9800 RPM (146 HP @ 9800 RPM)
Lubrication: Dry-sump with integrated oil reservoir in lower crankcase
Oil Capacity: 2.84 L
Oil Filtration: Disposable cartridge

Primary Drive: Helical Gear, 0.554:1 (65/36) ratio
Final Drive: Constant path, 14 mm pitch aramid-reinforced Goodyear® Hibrex® belt with Flexten® Plus technology, 2.593:1 (70/27) ratio
Clutch: Wet, multi-plate, Hydraulic Vacuum Assist (HVA) Slipper Action Clutch, hydraulic clutch lever effort
Transmission: 6-speed, straight cut gears
Overall Ratio:
1st: 2.462
2nd: 1.750
3rd: 1.381
4th: 1.174
5th: 1.042
6th: 0.960

Frame: Aluminum frame, fuel in frame
Front Fork: 47 mm Showa® inverted forks with adjustable compression damping, rebound damping and spring preload
Rear Shock: Showa® coil over monoshock with adjustable compression damping, rebound damping and spring preload
Color: Diamond Blue
Front: 6-spoke, ZTL™ cast aluminum, 17 in. (432 mm) diameter, 3.5 in. (89 mm) width
Rear: 6-spoke, cast aluminum, 17 in. (432 mm) diameter,5.5 in. (140 mm) width
Front: ZTL™-type brake, 8-piston, fixed caliper, 375 mm single sided, inside out, stainless steel, floating rotor
Rear: Two-piston, direct mount caliper, 240 mm stainless steel, fixed rotor
Suspension Travel:
Front: 120 mm
Rear: 127 mm

Overall Length: 1996 mm
Overall Width: 716 mm
Seat Height: 775 mm
Ground Clearance: 114 mm
Rake (at Steering Head): 21.0°
Fork Angle: 21.0°
Lean Angle:
Soft Contact, Right: 48°
Soft Contact, Left: 48°
Hard Contact, Right: 50°
Hard Contact, Left: 50°
Trail: 84 mm
Wheelbase: 1387 mm
Front: Diablo Corsa III, 120/70 ZR-17
Rear: Diablo Corsa III, 180/55 ZR-17
Fuel Capacity: 21.2 L (5.6 gal.)
Reserve Fuel Capacity: 3.0 L (0.8 gal.)
Dry Weight: 170 kg
Gross Rating: 386 kg
Load Capacity: 179 kg

Battery: Sealed lead acid, maintenance-free, 12V, 12 amp/hour, 200 cca
Charging: 32-amp, permanent magnet, three-phase, solid-state alternator with solid-state regulator (432W @ 7000 rpm, 432W peak)
Starting: 900W electric with one way clutch
Headlamps Type: Six bulb headlamp system with daylight running mode, 35-watt [H8]
Headlamps Description: 70-watt low beam (Two bulbs, each 35-watt), 140-watt high beam (70-watt low beam with additional two bulbs, each 35-watt)
Tail/Stop Lights: 5W/21W
Turn Signal Lights: LED manual canceling
License Plate Light: 5W

Instruments: Instrument cluster with ODIS (Onboard Diagnostic Information System) featuring Analog tachometer with integrated shift light, digital speedometer on LED display, odometer, ODIS service code display, 4-digit security system with ignition immobolizer, lap timer (records up to 99 lap times) and splits, ambiant air temperature, coolant temperature, average and instanteous fuel consumption, miles to next service display, low fuel (plus miles traveled on reserve); high beam, neutral, turn signals; clock


5 thoughts on “Buell 1125R”

  1. Hands down the best bike Buell has made. . . . smaller engine than the firbolt but none the les mor power. . . . GREAT JOB BUELL! ! ! ! !

  2. Interesting combination… the highest performance Buell to date, and the ugliest motrcycle in the history of the world. Eric Buell is one hell of an engineer, but they totally forgot to include a designer on the 1125R build team. Unfortunately, the performance does not outweigh the styling disaster… try again Eric.

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