BERSERKER Gravel-GRX400-20S Specification
| Model | KOOTU GRX-400 BERSERKER |
| Frame material | T800 grade carbon fiber, KOOTU logo |
| Fork material | T800 grade Carbon fiber, fork open 100mm |
| Handlebar | Gravel 480*31.8mm, 40 degrees of flare |
| Seatpost | T800 grade carbon fiber, 350mm |
| Thru axle | Hollow type, front M12*100, rear M12*142 |
| Wheels | Aluminum, 700c,30mm depth. |
| Tires | 40C Continental Terra ShieldWall (40-622) |
| Bottom bracket | GINEYEA BB51 |
| Chain | KMC X10R |
| Crank | SHIMANO FC-RX600, 46-30T(170MM) |
| Shifting levers | SHIMANO ST-RX400 |
| Front derailleur | SHIMANO FD-RX400 |
| Rear derailleur | SHIMANO RD-RX400 |
| Flywheels | SHIMANO CS-HG500 (11-13-15-17-19-21-23-26-30-34T) |
| Disc rotor | SHIMANO SM-RT70,140MM |
| Pedals | SANYUN LP-658A |
| Saddle | YBT, PU-leather |