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2024 Triumph Speed 400 Carnival Red / Phantom Black The Speed 400 brings Triumph’s unmistakable stripped back custom style, agile handling, responsive performance, and category-defining build quality to a new class of rider. Features may include: STYLE AND DNA From the classic engine profile and sculpted fuel tank to the premium paint finish, the Speed 400’s stripped back modern custom style and timeless silhouette is unmistakably Triumph. PREMIUM FINISH Trademark black powder-coated engine casings, tough gold anodized forks, high-quality paint, and exquisite detailing ensure the finish on the Speed 400 is premium throughout. TR-SERIES ENGINE The all-new TR-Series engine combines the latest technology with modern classic aesthetics to deliver class-beating performance, Triumph’s signature characterful and rewarding feel, and an unmistakable exhaust note. CHASSIS & SUSPENSION The all-new dedicated frame and high-quality suspension deliver neutral, confidence-inspiring handling, and the perfect riding position for a fun and engaging ride for new and experienced riders alike. RIDER ERGONOMICS The Speed 400 is a great fit for riders of all sizes. Thanks to its lean standover, the engaging and natural riding position blends comfort with assured, feet-down maneuvering. WHEELS AND TIRES Lightweight, 10-spoke, 17-inch cast aluminum wheels contribute to the Speed 400’s agile handling and premium brand tires provide confidence in all conditions. BRAKES Responsive and confident braking performance comes courtesy of twin-piston radial calipers and floating disc, complete with braided brake lines and Bosch ABS.

Specifications

Engine & Transmission

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- Engine Type:
  
  Liquid-cooled, 4 valve, DOHC, single-cylinder
- Capacity:
  
  398.15 cc
- Bore:
  
  3.5 in
- Stroke:
  
  2.5 in
- Compression:
  
  12:1
- Max Power:
  
  29.4 kW / 8000 rpm
- Max Torque:
  
  27.7 ft-lb / 6500 rpm
- System:
  
  Bosch electronic fuel injection with electronic throttle control
- Exhaust:
  
  Stainless twin-skin header system with stainless steel silencer
- Final Drive:
  
  X-ring chain
- Clutch:
  
  Wet, multi-plate, slip
- Gearbox:
  
  6 speed
Chassis

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- Frame:
  
  Hybrid spine/perimeter, tubular steel, bolt-on rear subframe
- Swingarm:
  
  Twin-sided, cast aluminium alloy
- Front Wheel:
  
  Cast aluminium alloy 10 spoke, 17 x 3 in
- Rear Wheel:
  
  Cast aluminium alloy 10 spoke, 17 x 4 in
- Front Tyre:
  
  110/70 R17
- Rear Tyre:
  
  150/60 R17
- Front Suspension:
  
  43mm upside down Big Piston forks. 140mm wheel travel
- Rear Suspension:
  
  Gas monoshock RSU with external reservoir and pre-load adjustment. 130mm wheel travel
- Front Brake:
  
  300mm flixed disc, four-piston radial caliper, ABS
- Rear Brake:
  
  230mm fixed disc, floating caliper, ABS
Dimensions & Weights

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- Width Handlebars:
  
  31.3 in
- Height Without Mirror:
  
  42.3 in
- Seat Height:
  
  31.1 in
- Wheelbase:
  
  54.2 in
- Rake:
  
  24.6 º
- Trail:
  
  4.0 in
- Tank Capacity:
  
  3.4 gal
- Wet Weight:
  
  170 kg

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