Minibikes
2009CH Racing CH 509 Pro Senior
23 fields on record
The CH Racing CH 509 Pro Senior is a lightweight 50cc minibike designed for young riders and beginners seeking entry-level off-road experience. Its compact 35kg frame, low 678mm seat height, and air-cooled single-cylinder engine deliver manageable power ideal for learning fundamental riding skills. Best suited for youth racing and recreational trail riding.
- Capacity
- 49.7 ccm
- Engine
- Single, two-stroke
- Gearbox
- Not on record
Know it? Add it → - Dry weight
- 35.0 kg
- Seat height
- 678 mm
- Power
- 12.0 HP (8.8 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for minibike motocross and pit-bike racing, it exists to deliver sharp, playful off-road performance in a miniature package rather than any kind of transport.
- Built for
- It has the eager, high-revving, two-stroke personality of a proper race-bred minibike, feeling nimble, flickable, and full of character despite its tiny displacement.
- Not ideal for
- It is not suitable for taller or heavier adults, highway or street use, touring, carrying passengers, or anyone wanting comfort and long-distance capability.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 49.7 ccm
- Power
- 12.0 HP (8.8 kW)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.3429 HP/kg (dry)
- Cooling system
- Air
- Fuel system
- Carburettor
- Starting
- Kick
Transmission
- Final drive
- Chain
Dimensions & weight
- Wheelbase
- 1024 mm
- Overall length
- 1400 mm
- Seat height
- 678 mm
- Dry weight
- 35.0 kg
- Fuel capacity
- 2.80 litres
- Ground clearance
- 250 mm
Chassis & suspension
- Front suspension
- Telescopic hydraulic fork
- Rear suspension
- Single shock absorber
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 175 mm
- Rear brakes
- Expanding brake (drum brake)
- Front tyre
- 2.50-12
- Rear tyre
- 2.50-10
Other
- Color options
- Blue/yellow
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 | 2009 | 2010 |
|---|---|---|
| Capacity | 50 cc | 50 cc |
| Dry weight | 35 kg | 40 kg |
| Seat height | 678 mm | 678 mm |
| Fuel capacity | 2.8 L | 2.8 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the CH Racing CH 509 Pro Senior?
The 2009 CH Racing CH 509 Pro Senior has a Capacity of 49.7 ccm (3.03 cubic inches).
What engine power does the CH Racing CH 509 Pro Senior have?
The 2009 CH Racing CH 509 Pro Senior has a Power of 12.0 HP (8.8 kW).
How much does the CH Racing CH 509 Pro Senior weigh?
The 2009 CH Racing CH 509 Pro Senior has a Dry weight of 35.0 kg (77.2 pounds).
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