GRX400 carbon gravel bike-black
GRX400 carbon gravel bike-white
sava hulk4.0-grx400 shifter levers
sava hulk4.0-grx400 front derailleur
sava hulk4.0-grx400 rear derailleur
sava hulk4.0-grx400 crankset
sava hulk4.0-grx hydraulic disc brake
sava hulk4.0 freewheel

HULK4.0 Carbon Gravel Bike 20S US

Regular price$1,699.00
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  • 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

bicycle frame Frame R11 frame ,T800 carbon fiber 
bicycle fork Fork  R11 fork,T800 carbon fiber
bicycle seatpost Seat post 350mm ,T800 carbon fiber
bicycle headset Headset JY,Bearing

DRIVETRAIN

rear derailleur Rear Derailleur SHIMANO RD-RX400
front derailleur Front Derailleur SHIMANO FD-RX400
crankset Crankset SHIMANO FC-RX600,46-30T(170MM) BB:GINEYEA BB51
cassette Cassette SHIMANO CS-HG500 (11-13-15-17-19-21-23-26-30-34T)
shift lever Shifters SHIMANO ST-RX400
Brakes SHIMANO BR-RX400,Hydraulic disc brake
chain Chain KMC X10R

WHEELSETS

bicycle wheel Wheels Aluminum,DR-DPDI9-TT   700C*24H19*24.5*36MMF/V
bicycle rotors Rotors IIIPRO PN28 140MM six-pin lock
bicycle tires Tires   700 x 40C Continental tires
bicycle hubs Hubs

Front: SOLON DH69TF M12*14G/24H*100mm Rear: DH970TR  M12*14G/24*142mm

COMPONENTS
bicycle handlebar Handlebar Aluminum Dropbar,φ22.2*31.8*480 
bicycle stem Stem Aluminum,31.8*28.6*100
bicycle saddle Saddle YBT,PU-leather
bicycle pedal 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

bicycle frame Frame R11 frame ,T800 carbon fiber 
bicycle fork Fork  R11 fork,T800 carbon fiber
bicycle seatpost Seat post 350mm ,T800 carbon fiber
bicycle headset Headset JY,Bearing

DRIVETRAIN

rear derailleur Rear Derailleur SHIMANO RD-RX400
front derailleur Front Derailleur SHIMANO FD-RX400
crankset Crankset SHIMANO FC-RX600,46-30T(170MM) BB:GINEYEA BB51
cassette Cassette SHIMANO CS-HG500 (11-13-15-17-19-21-23-26-30-34T)
shift lever Shifters SHIMANO ST-RX400
Brakes SHIMANO BR-RX400,Hydraulic disc brake
chain Chain KMC X10R

WHEELSETS

bicycle wheel Wheels Aluminum,DR-DPDI9-TT  700C*24H19*24.5*36MMF/V
bicycle rotors Rotors IIIPRO ,PN28 140MM six-pin lock
bicycle tires Tires   700 x 40C Continental tires
bicycle hubs Hubs

Front:SOLON,DH69TF M12*14G/24H*100mm;Rear:DH970TR  M12*14G/24*142mm

COMPONENTS
bicycle handlebar Handlebar Aluminum Dropbar,φ22.2*31.8*480 
bicycle stem Stem Aluminum,31.8*28.6*100
bicycle saddle Saddle YBT,PU-leather
bicycle pedal 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.

R08 Frame Size Geometry

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

Internal Cable Routing

Designed to conquer the elements, our gravel bike’s fully internal cable routing keeps cables protected from dirt, debris, and weather while delivering a sleek, aerodynamic profile. Whether you’re tackling rough trails or cruising gravel roads, this design ensures smooth shifting and braking, ride after ride. Less clutter, more adventure—ride further, ride freer.

Flared Drop Bars for Ultimate Control and Comfort

Our gravel bike’s flared drop bars are designed to give you unmatched control and stability on rough terrain. The wider, outward-flared design provides better handling on technical descents, while the ergonomic shape ensures comfort during long rides. Whether you’re carving through gravel or navigating tight trails, these bars keep you in charge, mile after mile. Ride with confidence, ride with flair.

Built for the Rough: Gravel-Specific Carbon Frame with Robust Design

Engineered to tackle the toughest terrains, our gravel-specific carbon frame combines lightweight strength with a rugged, oversized construction for maximum durability and vibration damping. Whether you’re racing gravel roads or exploring uncharted trails, this frame delivers unmatched stability, comfort, and performance. Go further, ride harder—where the road ends, the adventure begins.

Adventure-Ready: Multi-Mount Gravel Bike Frame for Ultimate Load-Carrying Versatility

Designed for explorers, our gravel bike features a top tube with multiple mounting points, ready to carry everything from water bottles and top tube bags to saddlebags and gear packs. Whether you're on a weekend bikepacking trip or a long-distance gravel adventure, this bike adapts to your needs, keeping your essentials secure and within reach. Ride farther, carry smarter—your journey, your way.

Conquer Every Terrain

Ride Beyond Limits

SHIMANO GRX ST-RX400

Experience unmatched control and precision with the SHIMANO GRX ST-RX400 – engineered for gravel adventures and built to conquer any terrain with ease.

SHIMANO GRX FD-RX400

Seamless shifting and reliable performance for tackling the toughest terrains.

SHIMANO GRX RD-RX400

Smooth, precise gear changes – designed for gravel mastery and unmatched durability on any terrain.

SHIMANO GRX FC-RX600

Lightweight, durable, and optimized for gravel performance on any surface

SHIMANO GRX BR-RX400

Delivering reliable, powerful braking performance for all your gravel adventures.

SHIMANO CS-HG500

Shift smoothly and ride farther with the SHIMANO CS-HG500 – precision-engineered for durability and seamless performance on any terrain

Influencer Review

Why Choose US?

FAST Delivery|Free Shipping

Bikes are shipped from US warehouses and take only 3-7 days to arrive!

2- Year Warranty

Ride with Confidence

Affordable Price

High-end carbon fiber technology, super low price, so that every hobby cyclist can ride with it

Shop Risk-Free

14-Day Free Returns, Exchanges, and Shipping Insurance for a Hassle-Free Cycling Experience.

FAQs

The SAVA Hulk Gravel Bike features a high-quality T800 carbon fiber frame, which is lightweight, durable, and designed to absorb vibrations for a smoother ride on rough terrains.

The SAVA Hulk typically comes with700c gravel tires that offer excellent traction and stability on mixed surfaces.Compatible with up to 45C tires

Yes, the SAVA Hulk is equipped withmounting points for racks and fenders, making it a great choice for bikepacking, commuting, or touring.

The bicycle is currently using clincher tires. If you want to make it tubeless compatible, you need to replace the rims with compatible ones.

The SAVA Hulk is often equipped with aShimano GRX groupset, which is specifically designed for gravel riding. It provides smooth shifting and reliable performance in challenging conditions.

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