2010
Buell 1125R - Specifications & Review

Article Complete Info
| Articleid | 458588 |
|---|---|
| Category | Sport |
| Make | Buell |
| Model | 1125R |
| Price | US$ 12499. Prices depend on country, taxes, accessories, etc. |
| Year | 2010 |
Chassis, Suspension, Brakes & Wheels
| Frametype | Black aluminium frame, fuel in frame |
|---|---|
| Frontbrakes | Single disc. ZTL2-type brake, 8-piston, 4 pads, fixed caliper, single-sided, inside out, stainless steel, floating rotor |
| Frontbrakesdiameter | 375 mm (14.8 inches) |
| Frontsuspension | 47 mm Showa inverted forks with adjustable compression damping, rebound damping and spring preload |
| Fronttyre | 120/70-ZR17 |
| Frontwheeltravel | 120 mm (4.7 inches) |
| Rake | 21.0° |
| Rearbrakes | Single disc. Two-piston, direct mount caliper; stainless steel, fixed rotor |
| Rearbrakesdiameter | 240 mm (9.4 inches) |
| Rearsuspension | Showa coil-over monoshock with external piggyback reservoir and adjustable compression damping, rebound damping and spring preload |
| Reartyre | 180/55-ZR17 |
| Rearwheeltravel | 127 mm (5.0 inches) |
| Trail | 84 mm (3.3 inches) |
Engine & Transmission
| Borexstroke | 103.0 x 67.5 mm (4.1 x 2.7 inches) |
|---|---|
| Clutch | Wet, multi-plate, Hydraulic Vacuum Assist (HVA) slipper – action clutch, hydraulic clutch lever effort |
| Compression | 12.3:1 |
| Coolingsystem | Liquid |
| Displacement | 1125.86 ccm (68.70 cubic inches) |
| Enginedetails | V2, four-stroke |
| Exhaustsystem | Tuned, tri-pass resonance chamber with integral helmholtz tuning and mass-centralised mounting |
| Fuelsystem | Injection. Dual 61 mm down draft throttle bodies, DDFI III fuel injection |
| Gearbox | 6-speed |
| Power | 146.00 HP (106.6 kW)) @ 9800 RPM |
| Torque | 111.19 Nm (11.3 kgf-m or 82.0 ft.lbs) @ 8000 RPM |
| Transmissiontypefinaldrive | Belt |
| Valvespercylinder | 4 |
Other Specifications
| Coloroptions | Racing Red; Arctic White; Midnight Black; All with tinted windscreen |
|---|---|
| Comments | 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 immobiliser, lap timer (records up to 99 lap times) and splits, ambient air temperature, coolant temperature, average and instantaneous fuel consumption, miles to next service display, low fuel (plus miles traveled on reserve); high beam, neutral, turn signals; clock |
| Starter | Electric |
Physical Measures & Capacities
| Fuelcapacity | 20.00 litres (5.28 gallons) |
|---|---|
| Groundclearance | 114 mm (4.5 inches) |
| Oilcapacity | 3.10 litres (0.20 quarts) |
| Overalllength | 1,996 mm (78.6 inches) |
| Overallwidth | 716 mm (28.2 inches) |
| Seatheight | 775 mm (30.5 inches) If adjustable, lowest setting. |
About Buell
Country of Origin:
United States
Founder:
Erik Buell
Best Known For:
Mass centralization, fuel-in-frame, rim-mounted front brake; XB and 1125/1190 platforms
Company History
Buell Motorcycles, founded by engineer and former racer Erik Buell, reimagined sportbike design around mass centralization and chassis stiffness. Early Buells used Harley-Davidson V-twins in compact frames, evolving into the XB series with fuel stored inside the frame spars and a perimeter (rim-mounted) front brake that reduced unsprung weight. The result was agile steering, fierce mid-corner feedback, and a uniquely American take on the sportbike: torque-rich engines married to short wheelbases and steep geometry. Later, liquid-cooled Rotax-powered 1125 models pushed performance further. Buell’s partnership with Harley-Davidson provided factory resources and dealer reach, but strategic tensions and the 2008–09 downturn led to the brand’s closure under H-D ownership. Erik Buell returned with Erik Buell Racing (EBR), developing 1190cc superbikes that proved competitive yet financially difficult in a niche market. The Buell name has since resurfaced under new stewardship, underscoring how resilient the idea remains. Historically, Buell matters because it asked different questions: What if the frame carried fuel? What if the front rotor’s diameter increased while caliper mass shrank? What if rideability on real roads mattered as much as peak dyno numbers? For riders, a Buell offers character—snappy turn-in, stout midrange, and the feeling that the chassis is a living partner. Love or quibble with the quirks, the brand expanded sportbike vocabulary, leaving an imprint on how engineers and enthusiasts think about where weight lives and how a motorcycle should communicate at the limit.
