2017-03-09 22:34:11+0000 - Redhill, England, United Kingdom
  • Make:
  • Hesketh
  • Model:
  • Sonnet
  • Year:
  • 2017

If a 2100cc engine just wasn't quite enough, Hesketh have gone and stuck a supercharger on the Sonnet as well.

The Sonnet is the newest hand-built motorcycle by Hesketh, an older a British motorcycle brand revived in 2010 by designer, developer Paul Sleeman, Hesketh Motorcycles owner and Chief Engineer.

Specs:

Engine Type is air-cooled V-Twin with 2,100cc displacement.

  • Valve Actuation: Push Rod 2 Valves Per Cylinder
  • Bore X Stroke: 105 mm x 110 mm
  • Compression Ratio: 9:75:1
  • Fuel System: Closed Loop Electronic Fuel Injection
  • Ignition: Digital
  • Start: Electric
  • Security: Keyless Ignition & Immobiliser
  • Exhaust: Two Into One Into Two: Stainless Steel

Frame

  • Frame: Chrome-moly Tube Cradle Frame
  • Swing Arm: Aluminium Box Section
  • Rake: 25
  • Trail: 96mm
  • Front Wheel: 17" Dymag Carbon Fibre
  • Rear Wheel: 17" Dymag Carbon Fibre
  • Front Tyre: 120/70/ZR17
  • Rear Tyre: 190/70/ZR17
  • Handlebars: Clip on

Dimensions

  • Fuel Tank Capacity: 13 Litres (5 US Gallons)
  • Dry Weight: 235kg
  • Seat Height: 30 Inches
  • Wheelbase: 61 Inches

Transmission

  • Gear Box: Rivera Primo 6 Speed
  • Final Drive: 525 "O" Ring Chain
  • Clutch: Brute Extreme Primary Belt Drive With Hydraulic Activation

Suspension

  • Front Suspension: K-Tech
  • Rear Suspension: K-Tech Bullit Springless

Power

  • Power: 145PS @ 6000RPM 210Nm @ 3000RPM
  • Brakes
  • Front Brakes: Brembo Monoblock Radial
  • Rear Brakes: Brembo Monoblock

Electronics & Controls

  • Charging System: Cycle Electric Regulator & Stator
  • Levers: Magura Powersports

Photo via Motorcycle News/Twitter

The Hesketh legacy:

  • V1000 - 1982 | 1000 cc | 130 made - V-twin gentleman's tourer. The original machine came with a nickel-plated Reynolds 531 frame.
  • Vampire - 1983 | 1000 cc | 50 made - Touring based version of the V1000, with fairing and optional panniers.
  • Vortan - 1985 | 1100 cc | 1 made - Bored out 1100 cc, sports version of the V1000 with highly modified chassis.
  • Vulcan - 1990 | 1200 cc | 1 made - A V1000 EN10 with a series of modifications including a bored out 1200 cc engine.
  • Hesketh 24 – 2014 | 1917 cc | 24 made - In-production Limited Edition with 1917 cc S&S engine named after James Hunt's 1975 F1 car.
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