HULK4.0 Carbon Gravel Bike 20S US
- Low stock - 1 item left
- Inventory on the way
Guarantee safe & secure checkout

- Free Shipping|Home Delivery
- Ship Within 24h|3-7 Days Delivery
- High-Performance T800 Carbon Fiber Construction: The HULK4.0 features a T800 carbon fiber frame, fork, and seatpost, providing exceptional strength and lightweight performance, perfect for tackling any terrain.
- Lightweight and Agile: Weighing just 10.2kg (22.49lbs), this gravel bike offers easy handling and superior agility, making it an ideal choice for adventurous riders seeking a lightweight gravel bike.
- Aerodynamic Frame with Internal Cable Routing: Designed with an aerodynamic frame and internal cable routing, the HULK4.0 ensures reduced drag and a sleek, clean look, enhancing both speed and aesthetics.
- Reliable Shimano GRX-400 Groupset: Equipped with the Shimano GRX-400 groupset, this bike delivers smooth and precise shifting, ensuring a reliable and efficient ride on various terrains.
- Durable Components and Comfortable Ride: Featuring 700*40C Continental tires for excellent grip and durability, a KMC chain, and a hollow comfortable saddle, the HULK4.0 is built for long-lasting performance and comfort on all your gravel adventures
Specifications:
Model | HULK4.0 RX400 20S |
Weight | About 10.2kg(22.49lbs) Varies by size |
Frame size | 47cm,51cm,54cm,56cm |
Color | Black,White |
FRAMESET
![]() |
Frame | R11 frame ,T800 carbon fiber |
![]() |
Fork | R11 fork,T800 carbon fiber |
![]() |
Seat post | 350mm ,T800 carbon fiber |
![]() |
Headset | JY,Bearing |
DRIVETRAIN
![]() |
Rear Derailleur | SHIMANO RD-RX400 |
![]() |
Front Derailleur | SHIMANO FD-RX400 |
Crankset | SHIMANO FC-RX600,46-30T(170MM) BB:GINEYEA BB51 | |
Cassette | SHIMANO CS-HG500 (11-13-15-17-19-21-23-26-30-34T) | |
![]() |
Shifters | SHIMANO ST-RX400 |
Brakes | SHIMANO BR-RX400,Hydraulic disc brake | |
![]() |
Chain | KMC X10R |
WHEELSETS
![]() |
Wheels | Aluminum,DR-DPDI9-TT 700C*24H19*24.5*36MMF/V |
![]() |
Rotors | IIIPRO PN28 140MM six-pin lock |
![]() |
Tires | 700 x 40C Continental tires |
![]() |
Hubs |
Front: SOLON DH69TF M12*14G/24H*100mm Rear: DH970TR M12*14G/24*142mm |
COMPONENTS
![]() |
Handlebar | Aluminum Dropbar,φ22.2*31.8*480 |
![]() |
Stem | Aluminum,31.8*28.6*100 |
![]() |
Saddle | YBT,PU-leather |
![]() |
Pedal | Sanyun;,9/16" |
Recommend size:
Shipping information:
- Ship from USA,only ship to USA
- Free Shipping
- Delivery time :3-5 days
SPECIFICATIONS:
Model | HULK4.0 R11-RX400 20S |
Weight | About 10.2kg(22.49lbs) Varies by size |
Frame size | 47cm,51cm,54cm,56cm |
Color | Black,White |
FRAMESET
![]() |
Frame | R11 frame ,T800 carbon fiber |
![]() |
Fork | R11 fork,T800 carbon fiber |
![]() |
Seat post | 350mm ,T800 carbon fiber |
![]() |
Headset | JY,Bearing |
DRIVETRAIN
![]() |
Rear Derailleur | SHIMANO RD-RX400 |
![]() |
Front Derailleur | SHIMANO FD-RX400 |
Crankset | SHIMANO FC-RX600,46-30T(170MM) BB:GINEYEA BB51 | |
Cassette | SHIMANO CS-HG500 (11-13-15-17-19-21-23-26-30-34T) | |
![]() |
Shifters | SHIMANO ST-RX400 |
Brakes | SHIMANO BR-RX400,Hydraulic disc brake | |
![]() |
Chain | KMC X10R |
WHEELSETS
![]() |
Wheels | Aluminum,DR-DPDI9-TT 700C*24H19*24.5*36MMF/V |
![]() |
Rotors | IIIPRO ,PN28 140MM six-pin lock |
![]() |
Tires | 700 x 40C Continental tires |
![]() |
Hubs |
Front:SOLON,DH69TF M12*14G/24H*100mm;Rear:DH970TR M12*14G/24*142mm |
COMPONENTS
![]() |
Handlebar | Aluminum Dropbar,φ22.2*31.8*480 |
![]() |
Stem | Aluminum,31.8*28.6*100 |
![]() |
Saddle | YBT,PU-leather |
![]() |
Pedal | Sanyun;,9/16" |
The standard brake is set to control the front brake with the left hand and the rear brake with the right hand, please let us know if you want to change it.

Parameter | 470(S) | 510(M) | 540(L) | 560(XL) |
---|---|---|---|---|
A Seat Tube (mm) | 400 | 440 | 480 | 510 |
B Top Tube (mm) | 530 | 543 | 562 | 583 |
C BB Drop(mm) | 70 | 70 | 70 | 70 |
D Chainstay(mm) | 430 | 430 | 430 | 430 |
E Scat Angle (°) | 72.3° | 73° | 72.3° | 71.7° |
F Head Angle(°) | 70.0° | 70.5° | 71° | 71° |
G Front Center(mm) | 602 | 609 | 620 | 637 |
H Head Tube Length (mm) | 100 | 130 | 150 | 165 |
I Fork Offset(mm) | 45 | 45 | 45 | 45 |
J Reach (mm) | 381 | 388 | 396.6 | 408.5 |
K Stack (mm) | 519.0 | 549.2 | 570 | 584.2 |
L Frok Lenght(mm) | 393 | 393 | 393 | 393 |
M Wheelbas (mm) | 1022 | 1029.7 | 1040.6 | 1057.4 |
N Standover(mm) | 765 | 765 | 791 | 814 |
Height Range | 160 -170cm(4'9''-5'2'') | 170-178cm(5'3''-5'6'') | 178-185cm(5'7''-6'2'') | 185-199cm(Above 6'3'') |
- Ship from USA,only ship to USA
- Free shipping
- 3-7 days delivery