Specs Comparison of Honda CRF50F (AE03) vs CRF70F (DE02) vs CRF100F (HE03) Model Year 2003 | Trials / Motorcross Features, Off-road Bike Photos
Released on Saturday, September 13th 2003, Honda CRF is a trial motorcycle series equipped with an air-cooled, 4-stroke, single-cylinder engine that is tenacious and easy to handle and demonstrates excellent off-road performance.
2004 model Honda CRF50F (AE03) photo. Appeared as a minor change version of XR50R. Off-road introductory bike for children. |
This time, with the minor model change of XR50R/XR70R/XR100R, the strength of the frame and the setting of the suspension have been changed to improve the steering stability. In addition, the exterior design will be changed to the styling of the CRF series, and the names will be “CRF50F”, “CRF70F”, and “CRF100F”. The CRF series features an easy-to-handle 4-stroke engine, a compact body size that is easy to handle, and a wide variety of three models, making it an entry-level motorcycle that everyone from children to adults can easily enjoy off-road riding.
Common body color to CRF50F, CRF70F, CRF100F is extreme red
2003 CRF50F vehicle profile
The Honda CRF50F is an off-road play bike for kids, was introduced in September 2003 as the 2004 model. However, it was not a brand-new model, and was given the same series name as the motocross racer at the time of release, taking advantage of the minor changes of the XR50R. As an off-road bike for kids, it was a model following the QR50 released in 1982, the Z50R from 1992, and the XR50R from 1999. Equipped with an air-cooled 4-stroke 50cc engine, the transmission adopts a 3-speed transmission with an automatic centrifugal clutch that does not require clutch operation + bottom neutral. The rear suspension is a cantilever swing arm. * Models that cannot be driven on public roads.
2003 Honda CRF Pricelist
Planned sales volume (domestic/annual) of CRF50F, CRF70F, CRF100F Total : 500 units.
Manufacturer’s suggested retail price at that time (2003):
- CRF50F : ¥149,000
- CRF70F : ¥159,000
- CRF100F : 229,000 yen
(Regional suggested retail price: excluding Okinawa and some areas.) (Reference price. Excludes consumption tax.)
- This CRF series cannot be driven on public roads or places used for general traffic.
Also, you cannot get a license plate by registering. - The above CRF series employs a blow-by gas reduction system to help protect the environment.
- The CRF50F is designed for people weighing 40kg or less, and the CRF70F is designed for people weighing 60kg or less.
Main Features of CRF50F, CRF70F, and CRF100F
2003 Honda CRF50F Features
- Renewed with sharp and fearless styling that draws on the flow of the CRF series.
- Equipped with an air-cooled 4-stroke 49.4cm3 engine that is tenacious and easy to handle.
- Uses an automatic centrifugal clutch bottom neutral type 3-speed transmission that does not require clutch operation and is easy to operate.
- In order to improve the sense of security, the front suspension adopts a newly designed fork protector and the rear suspension adopts a cantilever type.
- Changed to a reinforced frame body for racing users.
- Environmentally friendly blow-by gas reduction system.
- Equipped with a throttle limiter that regulates the opening of the throttle to improve the sense of security. This throttle limiter can be adjusted arbitrarily.
- Using front and rear 10-inch nobby tires suitable for off-road driving.
2003 Honda CRF70F Features
- Renewed with sharp and fearless styling that draws on the flow of the CRF series.
- Equipped with an air-cooled 4-stroke 71.8cm3 engine with quiet and smooth output characteristics.
- Uses an automatic centrifugal clutch bottom neutral type 3-speed transmission that does not require clutch operation and is easy to operate.
- In order to improve durability, the front suspension adopts a newly designed telescopic type, and the rear suspension adopts a cantilever type.
- Reinforced frame body and swing arm for racing users.
- Environmentally friendly blow-by gas reduction system.
- Nobby tires with 14-inch front wheels and 12-inch rear wheels are used for off-road driving.
2003 Honda CRF100F Features
Picture of Honda CRF100F (HE03) Model Year 2006. |
- Renewed with sharp and fearless styling that draws on the flow of the CRF series.
- Equipped with an air-cooled 4-stroke 99.2cm3 engine with powerful output characteristics.
- Uses a 5-speed manual transmission that allows you to enjoy sporty driving.
- In order to improve road-following performance, the front suspension adopts a newly designed telescopic type with a cushion stroke of 150mm, and the rear suspension uses a pro-link with an axle travel of 148mm.
- Using a lightweight and highly rigid diamond frame and swingarm.
- Environmentally friendly blow-by gas reduction system.
- Nobby tires with 19-inch front wheels and 16-inch rear wheels are used for off-road driving.
2003 Honda CRF Main Specifications
Common Name | CRF50F | CRF70F | CRF100F | |
Car name/model | Honda AE03 | Honda DE02 | Honda HE03 | |
Length×Width×Height (m) | 1.302×0.581×0.774 | 1.569×0.694×0.885 | 1.853×0.786×1.046 | |
Wheel Distance (m) | 0.911 | 1.063 | 1.249 | |
Minimum ground clearance (m) | 0.146 | 0.178 | 0.252 | |
Seat height (m) | 0.550 | 0.655 | 0.775 | |
Dry weight (kg) | 47.0 | 58.0 | 73.0 | |
Capacity (persons) | 1 | |||
Engine type | Air-cooled 4-stroke OHC single cylinder | |||
Total Displacement (cm3 ) | 49.4 | 71.8 | 99.2 | |
Inner Diameter x Stroke (mm) | 39.0×41.4 | 47.0×41.4 | 53.0× 45.0 | |
Compression Ratio | 10.0 | 9.0 | 9.4 | |
Max output (kW[PS]/rpm) |
2.2[3.1]/8,500 | 3.6 [4.9]/8,000 | 7.3[9.8]/9,000 | |
Maximum torque (N・m[kg・m]/rpm) |
3.3[0.34]/4,000 | 5.0[0.51]/3,500 | 7.9[0.81]/7,000 | |
Carburetor type | PA42 | PB13 | PD22 | |
Starting method | Kick method | Primary kick method | ||
Ignition method | CDI magnet ignition | |||
Lubrication method | Combined pumping and splashing method | |||
Fuel tank capacity (L) | 3.0 | 5.5 | ||
Clutch type | Automatic centrifugal type | Wet multi-plate coil spring type | ||
Transmission type | Constant mesh 3-speed return | Constant mesh 5-speed return | ||
Transmission ratio | 1 speed | 3.272 | 3.083 | |
2 speed | 1.667 | 1.882 | ||
3 speed | 1.190 | 1.400 | ||
4speed | - | 1.130 | ||
5 speed | - | 0.923 | ||
Reduction ratio (primary/secondary) | 4.058/2.642 | 3.722/2.400 | 4.437/3.571 | |
Caster angle (degrees) | 25°00´ | 26°10´ | 28 °50´ | |
Trail amount (mm) | 32.0 | 62.0 | 99.0 | |
Tire size | Front | 2.50-10 | 2.50-14 4PR | 2.50-19 4PR |
Rear | 2.50-10 | 3.00-12 4PR | 3.00-16 4PR | |
Brake type | Front | Mechanical leading trading | ||
Rear | Mechanical Reading Trading | |||
Suspension method | Front | Telescopic type Cushion stroke 96mm |
Telescopic type Cushion stroke 100 mm |
Telescopic type Cushion stroke 150 mm |
Rear | Cantilever Axle travel 70mm |
Cantilever Axle travel 90mm |
Swing arm type (pro-link) Axle travel 148mm |
|
Frame format | Backbone | Diamond |