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2009Hyosung RT125D

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The 2009 Hyosung RT 125D is an accessible all-rounder designed for beginner and commuter riders seeking reliable, fuel-efficient transportation. Its lightweight 125cc single-cylinder engine delivers modest power suitable for urban riding, while the practical 5-speed chain-driven gearbox and 125kg frame make it easy to handle. Known for affordability and dependability, it serves as an ideal entry-level platform for new motorcyclists.

Capacity
124.0 ccm
Engine
Single, four-stroke
Gearbox
5-speed
Dry weight
125.0 kg
Seat height
790 mm
Power
13.5 HP (9.9 kW)
⇄ Compare with another bike + Add to garage All model years

What’s new for the 2009 Hyosung RT125D

vs the 2008
Spec20082009
Power 15.0 HP (11.0 kW) 13.5 HP (9.9 kW)
Dry weight 135.0 kg (297.6 pounds) 125.0 kg (275.6 pounds)
Wet weight — 135.5 kg (298.7 pounds)
Front suspension Telescopic Telescopic fork
Other years 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 20Agility 65Comfort 55Off-road 35Touring 30Road manners 55
Off-road & trail35%
Cornering40%
City riding75%
Daily riding65%
Touring30%
Two-up30%
Track10%
Best for
It's designed as a small-displacement all-rounder for commuting, learning, and light casual riding rather than performance or serious adventure use.
Built for
It has a mild-mannered, approachable character with modest power delivery and simple, forgiving handling.
Not ideal for
It's not suited for highway touring, two-up long distance travel, or riders seeking strong acceleration and high-speed stability.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

Worked out in your browser - nothing is sent to us
At 790mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2009 Hyosung RT125D, with a cramped knee angle of around 65 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Full specifications

Engine
Capacity
124.0 ccm
Power
13.5 HP (9.9 kW)
Engine type
Single, four-stroke
Power/weight ratio
0.1080 HP/kg (dry)
Bore x stroke
57.0 x 48.8 mm
Compression
11.3:1
Cooling system
Oil & air
Fuel system
Carburettor
Starting
Electric
Valves per cylinder
4
Lubrication system
Wet sump
Torque
Not on record - add it
Transmission
Gearbox
5-speed
Transmission type
Manual
Final drive
Chain
Clutch
Wet, Multiplate
Dimensions & weight
Wheelbase
1350 mm
Overall length
2085 mm
Overall width
840 mm
Overall height
1125 mm
Seat height
790 mm
Dry weight
125.0 kg
Wet weight
135.5 kg
Fuel capacity
8.00 litres
Ground clearance
230 mm
Chassis & suspension
Frame
Steel
Front suspension
Telescopic fork
Rear suspension
Mono shock absorber
Brakes & wheels
Front brakes
Single disc
Front brakes diameter
275 mm
Rear brakes
Expanding brake (drum brake)
Rear brakes diameter
130 mm
Front tyre
130/80-18
Rear tyre
130/80-14
Other
Color options
Blue/black, orange/black

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted
Specification 20072009201220142016
Capacity 125 cc 124 cc 124 cc 124 cc 125 cc
Dry weight 125 kg 125 kg 125 kg 125 kg 135 kg
Seat height 790 mm 790 mm 790 mm 790 mm 790 mm
Fuel capacity 9.1 L 8 L 8 L 9.1 L 9.1 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

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Common questions

What is the engine size of the Hyosung RT125D?

The 2009 Hyosung RT125D has a Capacity of 124.0 ccm (7.57 cubic inches).

What engine power does the Hyosung RT125D have?

The 2009 Hyosung RT125D has a Power of 13.5 HP (9.9 kW).

How many gears does the Hyosung RT125D have?

The 2009 Hyosung RT125D has a Gearbox of 5-speed.

How much does the Hyosung RT125D weigh?

The 2009 Hyosung RT125D has a Dry weight of 125.0 kg (275.6 pounds).

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