









KOOTU R03 carbon road bike 700C wheel racing bike adult bike with Shimano Sora r3000 18 speeds
Quick detail:
- T800 carbon fiber frame, fork, seat post
- SHIMANO SORA R3000 9*2 Speed
- 9.8kg (21lb) lightweight bike
- Wind tunnel design
- 700*25C Continental tires and KMC chain
Collapsible content
Bicycle components:
Frame Size: | 47cm/51cm/54cm/56cm |
Wheel Size: | 700C |
Color: | Red/Grey |
Specification:
Frame Material: | Carbon fiber |
Fork: | Carbon fiber 700C*100 (fork open) |
Handlebar: | Aluminum, 420*31.8mm |
Stem: | Aluminum 31.8*28.6*100mm, -7°degree |
Fork bearing: | 28.6*41.8-52*39.8mm |
Saddle: | YBT Road Bike Saddle |
Seat Post: | Carbon fiber 350mm |
Derailleur / Brake System:
Shift lever: | Shimano Sora ST-R3000-L + Shimano Sora ST-R3000-R |
Front Derailleur: | Shimano Sora FD-R3000 |
Rear Derailleur: | Shimano Sora RD-R3000 |
Brakes calipers: | Tektro R313 V-brake 39-52MM |
Flywheel: | Sunrise Cassette 11-25T |
Crank sets: | Prowheel Ounce-421C 34/50T*170mm, BB68 |
The standard brake setting is Left hand control front brake, Right hand control rear brake, if you want to change, please let us know.
Transmission Control System:
Chain: | KMC Z9 |
Pedal: | SANYUN LP-658A 9/16' |
Wheelset System:
Wheelset: | Aluminum, 700C*1.5 14G*24H,F/V |
Hub: | 14G*20H M9*100*108/ 14G*24H M10*130*140 |
Tires: | 700x25C Continental Ultra Sport |
Accessories: | Multi Assemble tools, User Manual |

Shift/Brake Lever
The Sora ST-R3000 shift/brake lever has braking and shifting functions and allows easy operation.

Front Derailleur
The SORA R3000 front derailleur provides lighter 2x9 speed shifting thanks to its long arm design.

Rear Derailleur
SORA Medium Cage Rear Derailleur 9-speed. Using shadow design, thinner assembly structure provides a more streamlined integrated fit. The pulley maintains consistent distance to the cassette for increased shift stability.

Dual Pivot Road Caliper Brake
Tektro R313 road caliper brake adopts a dual-pivot design to increase braking force and achieve the best braking performance.

Hub
R-AL6061 ED 14G*20H M9*100*108 /14G*24H M10X130X140 The front hub keeps the wheel spinning freely, and the rear hub allows you to coast or freewheel. Sealed cartridge bearings protect the hub’s inners from dirt and water.

Saddle
Gel inserts provide additional support to prevent the pinching of soft tissues while also cradling the sit bones in a comfortable position on the saddle.

"WHY NOT ME"
Starting from the needs of riders, we are committed to providing riders with "professional carbon bikes with cost performance".