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← Erik Buell Racing
Sport · 2011

1125R DSB

US$ 15900. MSRP depends on country, taxes, accessories, etc.
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MotoLibrary Score
65 /100 Sporty
Power/Weight
0.79 hp/kg
Torque
109 Nm
Engine
1126 ccm

2011 Erik Buell Racing 1125R DSB Technical Analysis & Specification Breakdown

Built around Erik Buell Racing's sport motorcycle platform, the 2011 Erik Buell Racing 1125R DSB features a 1126 cc (68.7 cu in) v2, four-stroke configuration. In factory specification, peak output is rated at 140 HP (102.2 kW) at 10,800 rpm while maximum torque reaches 108.5 Nm (80 lb-ft) at 8,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 124.3 HP per liter and a 2,300 rpm working window between peak torque (8,500 rpm) and peak power (10,800 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.

On the scales, the 1125R DSB measures 176.9 kg (390 lbs) dry, translating to a power-to-weight ratio of 0.79 HP/kg (1.26 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,400 mm (55.1 in) wheelbase engineered for quick, flickable steering geometry. The 20.06-liter (5.3 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Erik Buell Racing archive, this model family spans 2 indexed model years from 2010 to 2011, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Specific Output
124.3 HP/L
Power-to-Weight
0.79 HP/kg (1.26 kg/HP)
Power Band Window
8,500–10,800 rpm
Engine
Displacement 1126.0 ccm (68.71 cubic inches)
Engine Type V2, four-stroke
Engine Details 72 and #730; V-Twin
Power 140.0 HP (102.2 kW)) @ 10800 RPM
Torque 108.5 Nm (11.1 kgf-m or 80.0 ft.lbs) @ 8500 RPM
Compression 12.6:1
Bore x Stroke 103.0 x 67.5 mm (4.1 x 2.7 inches)
Valves/Cylinder 4
Fuel System Injection. IDS Technology DDFI 3 electronic fuel injection and engine management system, fully programmable, 61mm throttle bodies, single injector, PWM fuel pump
Fuel Control Double Overhead Cams/Twin Cam (DOHC)
Transmission
Gearbox 6-speed
Final Drive Chain (final drive)
Clutch Multiplate with vacuum operated slipper or optional mechanical slipper at extra charge
Driveline 520 Chain. Primary drive: Straight cut gear, 1.806 ratio.
Performance
Exhaust Stainless steel ultralight 2 into 1 system.
Chassis
Frame Type Light alloy large section beam with integral fuel cell. Subframe: Light alloy tubular.
Rake 21.8°
Front Suspension Showa 47mm inverted fork with race cartridge, fully adjustable.
Front Travel 120 mm (4.7 inches)
Rear Suspension Light alloy swingarm with Showa Race damper, adjustable compression, rebound and ride height.
Rear Travel 127 mm (5.0 inches)
Wheelbase 1400 mm (55.1 inches)
Wheels & Brakes
Front Tyre 120/70-ZR17
Rear Tyre 190/55-ZR17
Front Brakes Double disc. Semi floating ISO multi-fin rotor with 8 piston ZTL2 caliper
Front Brake Ø 388 mm (15.3 inches)
Rear Brakes Single disc. Lightweight disc, 2 piston caliper
Rear Brake Ø 205 mm (8.1 inches)
Wheels Front 6 spoke ZTL, 3.50 x 17. Rear 6 spoke cast aluminum, 5.50 x 17.
Dimensions & Weight
Dry Weight 176.9 kg (390.0 pounds)
Power/Weight 0.7914 HP/kg
Fuel Capacity 20.06 litres (5.30 US gallons)
Other
Color Options Black/silver
Notes

Racing bike not legal for street usage. Adjustable rake and wheelbase.

More from Erik Buell Racing
Buying Checklist

Before You Compare This Bike

Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.

Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
Rider Profile

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High performance — experienced riders only.
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Sport & Track
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Handling
Manageable weight for most riders
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