Polini 911 H2O - 2005 Specifications and Reviews
The 2005 Polini 911 H2O is a lightweight sportminibike designed for young riders and beginners seeking an entry-level racing experience. Powered by a liquid-cooled two-stroke engine producing 6.2 horsepower, this compact machine weighs just 23 kg and excels in amateur competition and training environments. Known for its nimble handling and affordable performance package, it remains a popular choice for introducing riders to motorsport fundamentals.
2005
Engine and Transmission Specifications | |
| Clutch | Dry with centrifugal counter weights |
| Cooling system | Liquid |
| Fuel system | Carburettor |
| Bore x stroke | 36.0 x 39.0 mm (1.4 x 1.5 inches) |
| Power | 6.20 |
| Engine type | Single cylinder, two-stroke |
| Capacity: | 39.70 ccm (2.42 cubic inches) |
| | |
| Category | Minibike, sport |
| Year | 2005 |
| Model | Polini 911 H2O |
Brakes, suspension, Frame and wheels | |
| Rear brakes | Single disc |
| Front brakes | Single disc |
| Frame type | Reinforced die cast light alloy |
Physical measures and capacities | |
| Seat height | 455 mm (17.9 inches) If adjustable, lowest setting. |
| Power/weight ratio | 0.2696 HP/kg |
| Dry weight | 23.0 kg (50.7 pounds) |
| | |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
Performance Profile & Rider Fit
6.2 hp
Peak Power
Best For
Track75%
City20%
Cornering80%
Daily Riding10%
Touring5%
Passenger0%
Rider Profile
| Best For | Best suited to riders who already have two-wheel experience and want to sharpen throttle and body-positioning skills on a minibike rather than a first-time beginner machine. |
| Purpose | This is a pit-bike style minibike built purely for playful mini-moto track days, backyard fun, and honing cornering technique at low cost and low risk. |
| Rider Fit | Its tiny 455mm seat height and 23kg dry weight mean it is only comfortable and controllable for smaller or lighter riders, typically kids or petite adults. |
| Character | Expect a buzzy, high-revving two-stroke character that rewards aggressive, playful riding despite its very modest outright power. |
| Not Ideal For | This is not the bike for taller or heavier adults, highway commuting, touring, or anyone needing a passenger or genuine off-road capability. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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