Ecosse Heretic C - 2006 Specifications and Reviews

The 2006 Ecosse Heretic C is a powerful naked bike designed for experienced riders seeking raw performance and distinctive character. Its 1639cc V-twin engine delivers 141 horsepower and 110 lb-ft of torque through a lightweight 209kg chassis, making it best known for combining British engineering heritage with aggressive styling and thrilling acceleration.

2006
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General information

CategoryNaked bike
Year2006
ModelEcosse Heretic C
 
 

Engine and Transmission Specifications

Transmission typefinal driveChain
Gearbox5-speed
StarterElectric
Fuel systemCarburettor. Mikuni 42mm flat slide
Bore x stroke98.4 x 108.0 mm (3.9 x 4.3 inches)
Compression9.6:1
Torque110.00
Power140.80
Stroke4
Engine typeV2
Capacity:1638.81 ccm (100.00 cubic inches)

Physical measures and capacities

Wheelbase1,537 mm (60.5 inches)
Ground clearance165 mm (6.5 inches)
Seat height749 mm (29.5 inches) If adjustable, lowest setting.
Dry weight208.7 kg (460.0 pounds)
 
 

Ecosse Heretic C dimensions and frame

Exhaust systemHandcrafted by ECOSSE. 2 into 1
Rear brakes diameter260 mm (10.2 inches)
Rear brakesSingle disc
Front brakes diameter320 mm (12.6 inches)
Front brakesDouble disc
Rear tyre dimensions200/55-ZR17
Front tyre dimensions120/70-ZR17
Rear suspensionÖhlins for ECOSSE,
Front suspensionÖhlins for ECOSSE.
Rake (fork angle)24.5°
Frame typeCrMo

Speed and acceleration

Power/weight ratio0.6748 HP/kg

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsClear-coated carbon fiber with black highlight/matte black.

Performance Profile & Rider Fit

174.3 hp
Peak Power
2.9s
0-60 mph

Best For

Track80%
City45%
Cornering85%
Daily Riding40%
Touring40%
Passenger25%

Rider Profile

Best ForThis is a bike for experienced, confident riders who can manage a huge, torquey V-twin with race-bred suspension and brutal acceleration.
PurposeBuilt as a boutique power-naked, it exists to deliver explosive straight-line performance and razor-sharp handling rather than practicality.
Rider FitThe low-ish seat height combined with a wide, muscular chassis and high power-to-weight ratio demands strong physical control and confidence at speed.
CharacterIt has the soul of a hand-built, exotic muscle bike, aggressive, mechanical, and unapologetically focused on visceral thrills.
Not Ideal ForThis is not the bike for new riders, commuters seeking comfort, or anyone wanting a relaxed touring or off-road companion.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2006 Ecosse Heretic C Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 749mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2006 Ecosse Heretic C, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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