Yamaha SR400 Lightening By Deus - 2015 Specifications and Reviews

The 2015 Yamaha SR400 Lightening by Deus is a minimalist retro-styled motorcycle designed for riders seeking classic simplicity and authenticity. Part of Yamaha's Yard Built series, this bike excels as a customizable platform available as either a complete build or modification kit. Its lightweight construction, traditional kick-starter, and vintage aesthetic make it ideal for enthusiasts who value hands-on riding and timeless design.

2015
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General information

CategoryEnduro / offroad
Year2015
ModelYamaha SR400 Lightening by Deus
 
 

Engine and Transmission Specifications

Exhaust systemSc-Project exhaust
Greenhouse gases82.6 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel consumption3.56 litres/100 km (28.1 km/l or 66.07 mpg)
ClutchWet, Multiple Disc
Transmission type,final driveChain
Gearbox5-speed
Cooling systemAir
Lubrication systemWet-sump
IgnitionTCI: Transistor Controlled Ignition
Fuel controlSingle Overhead Cams (SOHC)
Fuel systemInjection
Valves per cylinder2
Bore x Stroke87.0 x 62.7 mm (3.4 x 2.5 inches)
Compression8.5:1
Torque27.40 Nm (2.8 kgf-m or 20.2 ft.lbs) @ 3000 RPM
Power22.93 HP (16.7 kW) @ 6500 RPM
Engine typeSingle cylinder, four-stroke

Brakes, suspension, Frame and wheels

Rear brakes diameter150 mm (5.9 inches)
Rear brakesExpanding brake (drum brake)
Front brakes diameter268 mm (10.6 inches)
Front brakesSingle disc. Hydraulic.
Rear tyre110/90-M18
Front tyre90/100-M18
Rear wheel travel104 mm (4.1 inches)
Rear SuspensionFOX rear shock
Front wheel travel150 mm (5.9 inches)
Front SuspensionTelescopic
Trail112 mm (4.4 inches)
Rake (fork angle)27.7°
Frame typeSteel Double Cradle
 
 

Physical measures and capacities

Oil capacity2.40 litres (0.16 quarts)
Fuel capacity12.00 litres (3.17 gallons)
Wheelbase1,410 mm (55.5 inches)
Overall width749 mm (29.5 inches)
Overall length2,085 mm (82.1 inches)
Overall height1,095 mm (43.1 inches)
Seat height785 mm (30.9 inches) If adjustable, lowest setting.

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
CommentsYamaha Yard Built series. Available as a kit or as a custom built model.
LightSix Days front headlamp
InstrumentsAnalogic tachometer
StarterKick
Color optionsWhite

Performance Profile & Rider Fit

22.9 hp
Peak Power
9.5s
0-60 mph

Best For

Track15%
City62%
Cornering45%
Daily Riding45%
Touring25%
Passenger20%

Rider Profile

Best ForThis custom-built single is best suited to riders who value character and style over outright performance, and beginners to intermediates will find its modest power approachable.
PurposeIt is primarily a stylish urban and boulevard cruiser built for short rides and visual impact rather than any specific offroad or touring mission despite its enduro-influenced category listing.
Rider FitThe low-ish seat height and light, narrow build make it manageable for most body sizes, though the kick starter and drum rear brake demand a bit more physical engagement than a modern commuter.
CharacterIt has a raw, air-cooled single-cylinder soul with thumping torque delivery low in the rev range, rewarding a relaxed, unhurried riding style with plenty of mechanical charm.
Not Ideal ForIt is not for riders seeking real offroad capability, sustained highway touring comfort, or anything approaching sport-bike speed and cornering precision.

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

Rider Fit Visualizer

2015 Yamaha SR400 Lightening By Deus Rider Ergonomics Assessment

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

Feet:

At 785mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2015 Yamaha SR400 Lightening By Deus, with a cramped knee angle of around 65 degrees and a slightly forward 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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