The Lightest KOOTU electronic shifting carbon road bike with shimano di2 wireless electronic gears
- T800 carbon fiber frame,carbon fiber fork,carbon fiber handlebar,carbon fiber seatpost,carbon fiber wheels,carbon fiber saddle
- Full integrated carbon handlebar
- Full internal cable routing design
- SHIMANO ultegra R8100 groupset
- shimano di2 wireless
- Electronic gear shifter
- 700C*28C Continental tires
Benefits Of Electronic Shifting
The electronic shifting is precise with every shift. As opposed to mechanical shifting, electronic drivetrains don't require cables, Batteries power the shifters and derailleurs, so you don't have to worry about cable stretching causing poor shifting.
By using battery power and a small motor in the derailleur to push the chain up and down the gears, the electronic shifting system can be fine-tuned and adjusted, and wirelessly controlled, providing performance tailored to the rider's riding style. An electronic drivetrain would be lighter and easier to shift because there is no friction in the system like a mechanical system, resulting in a better riding experience. There is also no need to worry about weather interfering with electronic drivetrains as they are completely sealed elements
Recommended height：
| 47cm | 155-165cm, 5'1" - 5'4" |
| 51cm | 166-175cm,5'5" - 5'7"4 |
| 54cm | 176-185cm ,5'8" - 6' |
| 56cm | 186cm-190cm,6'1"- 6'2" |
Specification:
| Frame material | T800 carbon fiber |
| Fork material | T800 Carbon fiber, fork open 100mm, thru axle |
| Front wheel hub | 14G*24H M12*100 , 2 creamic bearings |
| Rear wheel hub: | 14G*24H M12*142, creamic bearings |
| Rear thru axle | 142mm open, full length 170mm |
| Front thru axle | 100mm open, full length 122mm |
| Wheels | 700C*14G*24H F/V,30*42MM, clincher type |
| Spokes | 45# steel ,ED,L:264mm + 45# steel ED,L:266mm , J hook |
| Tires | 700 x 28C Ultra Sport III 28-622 |
| Inner air tube | 700*25/32C, (F/V)60MM |
| Handlebar | Integrated T800 carbon fiber ,420*31.8mm |
| Seatpost | T800 carbon fiber, 350mm |
| Handlebar grip | PU+EVA 2150*30*2.8 , carbon fiber pattern |
| Bottom bracket | SHIMANO SM-BB71, press in |
| Chain | SHIMANO CN-M8100, 108L |
| Left shifting lever | SHIMANO ULTEGRA ST-R8170(L), |
| Right shifting lever | SHIMANO ULTEGRA ST-R8170(R) |
| Front derailleur | SHIMANO ULTEGRA FD-R8150 |
| Rear derailleur | SHIMANO ULTEGRA RD-R8150 |
| Flywheels | SHIMANO CS-R8100.12-SPEED, 11-12-13-14-15-16-17-19-21-24-27-30T |
| DIsc rotor | PRO140mm, 6 pins |
| Pedal | SANYUN 9/16'' |
| Saddle | T90 Carbon fiber , 3K |
| Battery | SHIMANO BT-DN300 |
Full carbon fiber design
Lightweight electronic shifting road bike comes with t800 carbon fiber frame,fork,seatpost,handlebar,wheelset,weighs only 8.4kg (18.5 lb)
Full Internal Cable Routing
Cables are better protected, and the whole bike is beautiful and tidy
700C*100 T800 Carbon Fiber Fork
Reduce the weight of the whole bike, improve the speed of the bike, at the same time, the bright red color design makes the whole bike stylish and individual
Full Integrated Carbon Handlebar
Integrated one-piece handlebar, carbon fiber material, Makes the bike very light, ergonomically and aerodynamically makes it very easy to ride
Shimano Ultegra R8170 Shifter Lever
The ST-R8170 STI levers make the shifting is more precise and responsive, requiring less effort to change gears
Shimano Ultegra R8150 Front Derailleur
The Shimano ultegra FD-8150 provide quick and smooth front shifting even under high pedaling torque. It has programmed chain guide trim settings and can be used in full or semi SHIMANO SYNCHRONIZED SHIFT modes.
SHIMANO ULTEGRA RD-R8150 Rear Derailleur
SHIMANO Ultegra Di2 rear derailleur significantly increases movement speed and reduces movement time during gear changes and corresponding quick shifts
Speeds up the shifting process by 58% compared to the RD-R9150. The rear derailleur has a uniform cage length and an increased 34-tooth gear ratio, so it is not only faster than ever, but also guarantees highly precise function in all conditions.
SHIMANO ULTEGRA 12-Speed Free Wheel
Refined 12-speed gear combination provides maximum efficiency and acceleration for a variety of racing situations
Faster, smoother gear changes at maximum pedaling force
Shimano Ultegra R8100 Crankset
Optimum balance of stiffness, strength, weight and rotational performance
HOLLOWGLIDE construction reduces weight while maintaining strength for better power transfer and faster, more precise front shifting
Shimano Ultegra Brake System
SHIMANO's new ULTEGRA brake kit provides better braking control online on tighter, faster and tighter curves in road racing
50mm Carbon Wheelset and 700C*28C Continental tires
Reduced air resistance and stable handling at the same time, followed by increased transmission rigidity and finally a lightweight increase.
Comfortable Carbon Saddle
Ergonomic design, carbon brazing material makes the seat cushion lighter, with good shock absorption effect, hollow design, more breathable, increasing riding comfort
