ACADEMY Grade 4 belt
Ultra-light and ergonomics, the children fit
ACADEMY BIKES - fit like a
glove"Engineered by SCOOL". Our developers of the ACADEMY Bikes, in cooperation with the German Institute for Orthopaedics, Osteopathy and Sports Medicine (DIOOS), under the direction of Dr. med. Andreas Elsner, has succeeded in developing ultra-light junior bikes that meet the latest ergonomic requirements. All models are lighter than 40% of a normal child's weight, the frames with deep and narrow bottom brackets allow for tight child-friendly leg guidance. Short cranks and the upright sitting position make it possible to put your feet on the ground at any time and still ensure an ergonomic knee position while riding.
Geometry
| A Wheel Size | 20" |
| B Seat tube length | 290 mm |
| C Seat Tube Angle | 74.0° |
| D Head Tube Length | 130 mm |
| E Head Angle | 70.0° |
| F horizontal top tube length | 454 mm |
| G chainstay length | 340 mm |
| H Wheelbase | 833 mm |
| I min saddle height | 590 mm |
| J max saddle height | 700 mm |
| K crank arm length | 114 mm |
Technical details
| Drive |
| Rims | 20" x 1.5" x 32H, Aluminum, Black |
| Rear hub | Shimano Nexus SG-C3001 7-Speed Freewheel, black |
| Front hub | Aluminum, 14G/32H, black, QR |
| Wheel size | 20" |
| Tire | Speedster 20"x1.50 (40-406), reflective stripes, 72 TPI |
| Equipment |
| Fork | Aluminium |
| Porter | - |
| Grips | Bicycle black |
| Handlebar | 560mm, double butted aluminum, 20mm rise |
| Taillight | - |
| Seatpost | 27.2mm x 250mm Aluminum |
| Floodlight | - |
| Mudguards | - |
| Stand | - |
| Pedals | 95x80x23mm, ball bearings, black with reflectors, 9/16 thread |
| Circuit System |
| Number of gears | 7-speed Shimano Nexus, freewheel |
| Crankset | C-Drive 60T, 114mm, Aluminium |
| Gear lever | Shimano Nexus SL-7S31 Twist Grip Switch |
| Sequential logic system | - |
| Sprockets | C-Drive 30T, 13mm, Aluminium |
| Braking system |
| Front brake | V-Brake, Aluminium |
| Rear brake | V-Brake, Aluminium |
| Brake lever | Aluminum, 3 fingers |
| Details |
| Weight | 8.10 kg |
| Frame shape | Diamond Kink |
| Frame height | 29 cm |
| Frame material | Tripple Butted Aluminum |
>td >Required tools
| Other |
| Derailleur | - |
| Bottom bracket | |
| - |
| Other | Belt |