GRAVEL - Ventum

THE NEW VENTUM GS1

IN STOCK
Ready to Build to Your Spec*

YOUR NEW RACE DAY

FREE RACE ENTRY WITH GS1 PURCHASE!

LEARN MORE

THE NEW VENTUM GS1

IN STOCK
Ready to Build to Your Spec*

MEET THE GS1

Performance Gravel Has Arrived

Born and tested in Utah’s Uinta Mountains, the GS1 offers off-road comfort and versatility without sacrificing speed. It’s the ultimate gravel machine: revolutionary design and cutting-edge engineering, all wrapped up in a sleek, speedy package.

MEET THE NEW GS1

READY FOR ANYTHING

On-Road Responsiveness, Off-Road Speed

To go from predictable road to unstable dirt, you need a bike prepared to handle new terrain with confidence. Developed with a geometry-first approach, the GS1 meets the unique demands of gravel riding.

READY FOR ANYTHING

SLEEK SPEED

Just like its all-road counterpart, the NS1, the GS1 is a refined aero bike that handles well, accelerates like a rocket ship, and looks great while doing it.

SLEEK SPEED

Just like its all-road counterpart, the NS1, the GS1 is a refined aero bike that handles well, accelerates like a rocket ship, and looks great while doing it. When paired with the proprietary Ventum stem, the fully integrated cables are completely invisible on the front end.

STABLE HANDLING

Our POP (Predictable Optimized Performance) Gravel Geometry puts the rider into the best position to handle whatever the trail may demand. With a longer top tube, slacker steering, and a compact cockpit, the GS1 is built to be secure and predictable—whether you’re climbing a rocky trail or ripping down a loose descent.

STABLE HANDLING

DIAL IN YOUR RIDE

Ventum Dual-Offset Fork

We know different riders have different priorities. We took handling preferences one step further with the Ventum Dual-Offset fork. The fork offers the same comfort and ride feel regardless of wheel size, and with two distinct positions (45mm or 50mm), you can prioritize a more stable ride or a quicker steering response.

DIAL IN YOUR RIDE

Tire Options

The GS1 is designed to handle up to 700c x 42c and 650b x 48c tires. With the option to choose between 650b or 700c wheels and a range of tire sizes, you can adjust your setup to attack a variety of surfaces. Note that rim and tire variables can affect optimal clearance; we’re happy to help you choose the right combo.

DIAL IN YOUR RIDE

1x or 2x Drivetrain

The GS1 offers an industry-unique compatibility with 1x or 2x options from SRAM and Shimano.

DIAL IN YOUR RIDE

Versatile Mounts

The frame features three bottle cage mounts and one top-tube “bento”-style mount to stash your necessities.

FAST STARTS WITH A GREAT FIT

FRAME SIZE	S	M	M/L	L	XL
(A) STACK	522	545	570	589	604
(B) REACH	365	374	383	392	401
(C) HEADTUBE LENGTH	105	128	150	166	180
(D) REAR CENTER	420	420	420	420	420
(E) FRONT CENTER	592	604	612	617	626
(F) WHEELBASE	1002	1014	1022	1027	1036
(G) BOTTOM BRACKET DROP	70	70	70	70	70
(H) SEATTUBE ANGLE	72.5	72.5	72.5	72.5	72.5
(I) HEADTUBE ANGLE	69.5	70	71	72	72.5
(J) TOP TUBE LENGTH	530	546	563	578	591
(K) SEAT TUBE LENGTH	547	571	598	618	633
(L) SEAT TUBE (Physical)	502	525	550	569	584
(M) TRAIL (700c Wheel)	79/85	76/81	69/75	63/68	60/65
(N) FORK LENGTH	394	394	394	394	394
(0) FORK OFFSET	45/50	45/50	45/50	45/50	45/50

GS1 BUILD SPECIFICATIONS

GS1 SPECS	SRAM FORCE 1X MECHANICAL	SHIMANO GRX Di2 2X	SRAM RED 1x ETAP AXS MULLET
	FRAMESET
FRAME	Ventum GS1 Disc, Material: Carbon, 12x142mm, Flat Mount Brake
FORK	Ventum GS1 Fork, Material: Carbon, 12x100mm, Flat Mount Brake, Flip Chip
	COCKPIT
HANDLE BARS	FSA A Wing AGX	ENVE Gravel Bar or ENVE AR Bar	ENVE Gravel Bar or ENVE AR Bar
STEM	FSA Alloy	Enve Carbon Road Stem
TAPE	Fizik Terra Bondcush Tacky
SADDLE	Fizik Tempo R5 Argo	Fizik Tempo R3 Argo
SEAT POST	Ventum Seatpost, Material: Carbon, 400mm Length, 0mm offset
	BRAKES
FRONT BRAKE	Sram Force	Shimano GRX RX815	Sram Red eTap Axs
REAR BRAKE	Sram Force	Shimano GRX RX815	Sram Red eTap Axs
	DRIVE TRAIN
SHIFT LEVERS	Sram Force	Shimano GRX RX815	Sram Red eTap Axs
FRONT DERAILLEUR	N/A	Shimano FD-RX815	N/A
REAR DERAILLEUR	Sram Force 1, Long Cage, 11spd	Shimano RD-RX815	Sram XX1 Eagle AXS
CASSETTE	Sram Force 1, 40T	Shimano HG800 11/34T	Sram XG-1299 Eagle, 12spd, 10/50T
CRANKSET	Sram Force 1, 40T	Shimano FC-RX810-2 48/31T	Sram Red AXS 42T
BOTTOM BRACKET	T47/30mm	T47/24mm	T47/DUB
CHAIN	Sram Force 11spd	Shimano Ultegra 11spd	Sram XX1 Eagle 12spd
	TIRES & WHEELS
TIRES	WTB Riddler 700x37mm
WHEEL SET	FSA NS Alloy, Enve 3.4AR, or Enve G23
	SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE

“This is the most stable gravel bike I've ridden. I immediately felt comfortable without having to get used to any nuances. Providing handling options is fantastic and it's a smart approach to allow the customer to tune their ride characteristics.”

“This bike is a missile. Responsive, smooth, stiff, nimble, and it just wanted to roll fast. It's the kind of bike that lets you relax no matter the terrain. I would recommend it to anyone looking for the perfect gravel race adventure bike.”

“It is super solid. Very fast and responsive, and it looks good and fast. I think that you all knocked it out of the park on this one.”

“The GS1 is the first (and only) gravel bike I've ever ridden, and I loved the way it opens up new routes that I used to do on my NS1, while adding a ton of comfort on the gravel roads.”

“The bike is perfect for what it is intended. Light, fast, and beautiful.”

DIRECT TO YOU

Ventum offers direct to you convenience combined with our personal concierge experience. Our team is available to answer any questions you may have and walk you through your personal fit, build and shipping options. Mechanics build and test every bike before it ships giving you the peace-of-mind knowing that your Ventum is ready for any adventure. Your GS1 will be shipped mostly assembled in our custom packaging so you can unbox your new bike and start riding in as little as 15 minutes!