Xmotos XB-21D - 2008 Specifications and Reviews
The 2008 Xmotos XB-21D is a lightweight 50cc minibike designed for young riders and beginners seeking an affordable entry point into motorcycle riding. Its compact dimensions, low seat height, and automatic transmission make it ideal for learning basic riding skills and off-road exploration. Known for its simplicity and reliability, this air-cooled single-cylinder machine prioritizes accessibility over performance.
2008
Engine and Transmission Specifications | |
| Gearbox | Automatic |
| Cooling system | Air |
| Starter | Electric & kick |
| Bore x stroke | 52.4 x 49.5 mm (2.1 x 1.9 inches) |
| Compression | 9.7:1 |
| Power | 6.70 |
| Stroke | 4 |
| Engine type | Single cylinder |
| Capacity: | 50.00 ccm (3.05 cubic inches) |
Physical measures and capacities | |
| Wheelbase | 1,100 mm (43.3 inches) |
| Ground clearance | 1,000 mm (39.4 inches) |
| Overall length | 1,500 mm (59.1 inches) |
| Seat height | 670 mm (26.4 inches) If adjustable, lowest setting. |
| Dry weight | 60.0 kg (132.3 pounds) |
| | |
Xmotos XB-21D dimensions and frame | |
| Rear brakes | Single disc |
| Front brakes | Single disc |
| Rear suspension | Adjustable Air bag shock absorption |
| Front suspension | Upside shock |
Speed and acceleration | |
| Power/weight ratio | 0.1117 HP/kg |
| Category | Minibike, cross |
| Year | 2008 |
| Model | Xmotos XB-21D |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Color options | Black, Red, Green, Blue, Yellow, carbon block, orange |
| Fuel capacity | 3.00 litres (0.79 gallons) |
Performance Profile & Rider Fit
6.7 hp
Peak Power (est.)
Best For
Track10%
City8%
Cornering30%
Daily Riding5%
Touring2%
Passenger2%
Rider Profile
| Best For | This is a beginner-level minibike best suited to children or novice riders learning throttle and brake control in a controlled, low-speed setting. |
| Purpose | Built as a small recreational cross/minibike for backyard and casual off-road play rather than any serious performance or transport use. |
| Rider Fit | Its tiny 60 kg frame and low 670 mm seat height make it accessible to small or lightweight riders, including kids, but adults will feel cramped. |
| Character | A fun, toy-like pit bike with basic automatic transmission, modest 6.7 hp output, and simple air-cooled single-cylinder power delivery aimed at easy, forgiving riding. |
| Not Ideal For | It is not suitable for highway use, long-distance touring, carrying passengers, or any rider seeking real speed or performance. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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