Yamaha All New Soul GT AKS SSS - 2021 Specifications and Reviews

The 2021 Yamaha All New Soul GT AKS SSS is a practical 125cc automatic scooter designed for urban commuters seeking fuel-efficient, easy-to-ride transportation. Powered by a reliable single-cylinder four-stroke engine delivering 9.4 horsepower, it combines affordable performance with low maintenance through its belt-driven automatic transmission. Best suited for beginners and daily city riders, this scooter excels at economical commuting and maneuverability in congested traffic.

2021
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General information

CategoryScooter
Year2021
ModelYamaha All New Soul GT AKS SSS

Engine and Transmission Specifications

Transmission typeBelt   (final drive)
GearboxAutomatic
Cooling systemAir
IgnitionTCI
Fuel controlSingle Overhead Cams (SOHC)
Fuel systemInjection
Bore x Stroke52.4 x 57.9 mm (2.1 x 2.3 inches)
Compression9.5:1
Torque9.6 Nm (1.0 kgf-m or 7.1 ft.lbs) @ 5500 RPM
Power9.4 HP (6.9 kW) @ 8000 RPM
Engine typeSingle cylinder, four-stroke
Capacity:125.0 ccm (7.63 cubic inches)
 
 

Brakes, suspension, Frame and wheels

SeatDual seat
Wheels5-spoke cast
Rear brakesExpanding brake (drum brake)
Front brakesSingle disc
Rear tire100/70-14
Front tire80/80-14
Rear SuspensionUnit swingarm
Front SuspensionTelescopic fork
Frame typeUnderbone
 
 

Physical measures and capacities

Fuel capacity4.20 litres (1.11 US gallons)
Wheelbase1260 mm (49.6 inches)
Overall width700 mm (27.6 inches)
Overall length1870 mm (73.6 inches)
Overall height1066 mm (42.0 inches)
Seat height745 mm (29.3 inches) If adjustable, lowest setting.
Power/weight ratio0.0958 HP/kg
Dry weight98.0 kg (216.1 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Carrying capacityUnderseat storag
LightLED headlight
StarterElectric & kick
Color optionsGreen

Maintenance and service data

Spark plugsNGK-CR6HSA

Performance Profile & Rider Fit

9.4 hp
Peak Power

Best For

Track5%
City90%
Cornering55%
Daily Riding88%
Touring22%
Passenger45%

Rider Profile

Best ForThis scooter is ideal for beginners or casual riders who want simple, low-stress transportation without dealing with manual gears.
PurposeIt's built primarily for short urban commutes, errands, and light daily use rather than performance or distance riding.
Rider FitIts light weight, low seat height, and automatic transmission make it easy to manage for riders of almost any size or experience level.
CharacterIt has a practical, unpretentious personality focused on convenience, fuel efficiency, and easy maneuverability in traffic.
Not Ideal ForIt's not suited for riders seeking highway touring, high speeds, off-road capability, or carrying a passenger over long distances.

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

Rider Fit Visualizer

2021 Yamaha All New Soul GT AKS SSS Rider Ergonomics Assessment

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

Feet:

At 745mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2021 Yamaha All New Soul GT AKS SSS, with a moderate knee angle of around 95 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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Rider Reviews

Total comments: 1
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MotorcycleDB Review

The 2021 Yamaha All New Soul GT AKS SSS motorcycle is a powerful and stylish option for those in the market for a new bike. With its advanced key system and smooth shifting system, this motorcycle offers a top-notch riding experience. The sleek design and comfortable seating make it ideal for both short commutes and long rides. Whether you're a seasoned rider or just starting out, the Soul GT AKS SSS provides a reliable and enjoyable ride every time. Yamaha has truly outdone themselves with the 2021 All New Soul GT AKS SSS motorcycle. The innovative features such as the smart key system and smooth shifting make for an effortless and enjoyable riding experience. The stylish design and comfortable seating only add to the appeal of this high-performance motorcycle. If you're in the market for a new bike, the Soul GT AKS SSS should definitely be at the top of your list.
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