Roehr 1250sc - Specifications & Review

1250sc

Article Complete Info

Articleid584365
CategorySport
MakeRoehr
Model1250sc
Year2011

Chassis, Suspension, Brakes & Wheels

FrametypeSteel/aluminum composite beam frame.
FrontbrakesDouble disc. Semi-floating discs, radially mounted Brembo 4 piston calipers.
Frontbrakesdiameter330 mm (13.0 inches)
FrontsuspensionÖhlins 43mm fully adjustable upside-down fork with TiN 
Fronttyre120/70-ZR17
Rake23.5°
RearbrakesSingle disc. 2 piston Brembo caliper.
Rearbrakesdiameter245 mm (9.6 inches)
RearsuspensionOhlins fully adjustable linkless monoshock
Reartyre190/55-ZR17
Trail89 mm (3.5 inches)
WheelsForged aluminum 10 spoke Marchesini

Engine & Transmission

Borexstroke105.0 x 72.0 mm (4.1 x 2.8 inches)
ClutchWet, multi-plate, hydraulic actuation, slipper type
Compression11.3:1
CoolingsystemLiquid
Displacement1250.00 ccm (76.28 cubic inches)
Driveline520 O-ring chain
EnginedetailsV2, four-stroke
EnginetypeCounterbalanced, 60deg, V-twin
FuelsystemTurbo. Supercharger technology.
Gearbox5-speed
Power180.00 HP (131.4 kW)) @ 9100 RPM
Torque155.94 Nm (15.9 kgf-m or 115.0 ft.lbs) @ 7600 RPM
TransmissiontypefinaldriveChain
Valvespercylinder4

Other Specifications

ColoroptionsBlue/red/silver
CommentsHarley-Davidson 1250 Revolution Engine with added supercharge technology.

Physical Measures & Capacities

Dryweight196.0 kg (432.1 pounds)
Fuelcapacity14.38 litres (3.80 gallons)
Powerweightratio0.9184 HP/kg
Seatheight800 mm (31.5 inches) If adjustable, lowest setting.

About Roehr

Country of Origin: United States
Founder: Walter Roehrich
Best Known For: Roehr 1250sc supercharged superbike and later 125/250 single-cylinder models

Company History

Roehr Motorcycles pursued American superbike performance through a distinctive path: forced induction. The 1250sc used a supercharged V-twin housed in a purpose-built chassis with premium suspension and braking, targeting European-level speed with American thunder. Development demanded careful thermal management, fueling strategy under boost, and chassis stiffness that preserved feedback at serious pace. Later, the company pivoted to more accessible 125/250 singles to address regulatory and market realities, but the 1250sc remains the conversation piece—an audacious attempt to make a homegrown missile that still felt civilized on a back road. Boutique economics, certification costs, and the Great Recession ultimately stunted volume, yet Roehr’s work proved that small U.S. firms could deliver engineering ambition with polish. Historically, the brand joins Britten and Motus in the canon of American dreamers who tried to bend physics and business to a singular idea: a superbike that speaks with a distinctly American accent.

Other Years

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