Poseidon

X Origin

Where It All Bigins.

The X Origin is our way of making serious gravel riding more accessible. Our proven X family frame, an all-new full-carbon fork, and thoughtfully selected components create a capable foundation for your first gravel event, everyday escapes, and ambitions that grow with every ride.

Head out early. Take the unfamiliar turn. See where it leads.

Pre-order nowShipping early December '26
Shipping early December
Color: Night Shade GreyFull specs
Size: S (49)What is my size?
X Origin

Pre-order now. Shipping early December. 

Choose your package

Free bike shipping in the contiguous USA

Lifetime warranty on Poseidon frames · 1-year limited warranty on components

Military, First Responder, Medical Worker or Teacher? Ask about bicycle discounts

Enlarged product image
X Origin · Coming Thanksgiving 2026
$ 749.99 Pre-Order Now
Double-butted 6061 Alloy

Proven Poseidon X family frame

Full Carbon Fork

All-new endurence fork with accessory mounts

Modern Standards

Front and rear Thru-Axles, DiscBrakes, External cup BB, and Thru-spindle Crankset

Ready to Climb Gear Ratio

9-speed drivetrain, ready to climb

up to 700×45C

Frame tire claearance, even more on the fork.

01 / ROAD TO TRAIL

The X Origin

The road that turns to dirt. The climb you’ve been meaning to try. The feeling that there’s more out there—and you’re ready for it.The X Origin is our way of making serious gravel riding more accessible. Our proven X family frame, an all-new full-carbon fork, and thoughtfully selected components create a capable foundation for your first gravel event, everyday escapes, and ambitions that grow with every ride.Head out early. Take the unfamiliar turn. See where it leads.

Poseidon X Origin in woodland on a gravel ride
02 / FRAME

A proven
foundation.

The tried-and-tested Poseidon X family frame combines double-butted, heat-treated 6061 aluminum with our signature Poseidon Ambition Geometry. An approachable riding position and mixed-surface versatility make it a natural companion for weekday miles and the longer way home.

Designed for the everyday escape
Close-up of X Origin full carbon fork
03 / FORK

Comfort for the Long Hual

An all-new full-carbon fork with a comfort-focused layup for rougher pavement and winding gravel. Plus the fork mounting points riders loved on the older X — now ready for accessories and longer days out.

You asked. We listened. the Mounts are back.
04 / THOUGHTFULLY EQUIPPED

A Love for the Details. A Longing for the Ride.

Thoughtfully chosen details, for the miles you wish would last a little longer.

Take the Longer Route with ROAM
01 / DEBUTS HERE

Take the Longer Route with ROAM

Meet the All-New Roam saddle. A shorter, wider saddle shape created by rider feedback, with supportive foam and a durable synthetic leather cover.

Ready for Anything Ratio
02 / DRIVETRAIN

Ready for Anything Ratio

MicroSHIFT Sword Black 1x9 shifters, with an ADVENT derailleur and a 38T chainring paired with an 11–46T cassette.

Enhenced Stopping Power
03 / BRAKING

Enhenced Stopping Power

Poseidon Pro5 mechanical-hydraulic performance brake calipers pair with compressionless brake housing for a firm, responsive lever feel and controlled braking.

X Origin gravel bike outdoors
05 / The Details.

Serious Gravel. Zero Gatekeeping.

  • Frame: Double-butted, heat-treated 6061 aluminum alloy.
  • Geometry: Poseidon Ambition Geometry.
  • Fork: All-new full carbon with accessory mounting points.
  • Saddle: All-new Poseidon ROAM.
  • Drivetrain: MicroSHIFT Sword Black 9-speed shifters with an ADVENT rear derailleur.
  • Gearing: 38T steel chainring; 11–46T cassette.
  • Crankset: Thru-spindle design with an external-cup bottom bracket.
  • Brakes: Poseidon Pro5 mechanical-hydraulic performance brake calipers with compressionless housing.
  • Axles: Front and rear thru-axles.
  • Tires: Kenda Happy Medium 700×40C.
  • Wheels: 700c clincher wheels, a proven, durable, easy-to-maintain setup.


The early starts. The earned views. The road you’ve passed a hundred times becoming a place you finally know.

The X Origin opens the door to serious gravel riding. Bring your curiosity—and see how far it takes you.

FIND YOUR NOW.

Specs.

FrameDouble-butted, heat-treated 6061 aluminum · lifetime frame warranty
GeometryPoseidon Ambition Geometry
ForkAll-new full carbon with accessory mounting points
SaddleAll-new Poseidon ROAM
ShiftersMicroSHIFT Sword Black, 9-speed
Rear DerailleurMicroSHIFT ADVENT, 9-speed
Gearing38T steel chainring · 11–46T cassette
CranksetThrough-spindle design with external-cup bottom bracket
BrakesPoseidon Pro5 mechanical-hydraulic calipers · compressionless housing
AxlesFront and rear thru-axles
TiresKenda Happy Medium 700×40C clincher
Wheels700c Traditional hooked clincher (tube-type, not tubeless-compatible)
WarrantyLifetime on frame; 1-year limited on components

Sizing.

Size Frame Height
S495'3 - 5'7
M515'6 - 5'10
L535'9 - 6'1
XL556'0 - 6'3
2XL586'2 - 6'6
FIND YOUR FIT

Not sure about sizing?

Use our official sizing assistance before choosing your frame, or contact us with your height and inseam.

VIEW OFFICIAL SIZING HELP
06 / PRE-order

Pre-Order Perks
Discount & Complimentary Gifts

01

Pre-Order Now and get $50 off

All Colors available in all sizes.

02

Bonus Gifts on Pre-orders

Receive a complimentary USB-rechargeable LED taillight with three flash modes, plus an extra set of synthetic leather bar tape. WHILE SUPPLIES LAST!

03

Shipping early December '26

Bikes ship from our U.S. warehouse in the order pre-orders were received. Free bike shipping in the contiguous USA.

DIRECT-TO-RIDER

Adventure-focused design and accessible pricing. Straight to you.

PAY OVER TIME

See payment plan options available at checkout.

FSA / HSA

Ask us about eligibility options for your purchase.

TEST RIDE / SUPPORT

Visit us in Brea, California or reach out for assistance.

07 / Questions?

Pre-Order FAQ

When will my pre-order ship?

Shipping starts early December '26 from our U.S. warehouse, in the order pre-orders were received. Bike shipping is free within the contiguous USA.

When will I be charged?

Full payment is collected at checkout to secure your pre-order.

Can I cancel my pre-order?

Yes. You can cancel before your bike ships for a full refund.

What size should I order?

Please refer to our sizing chart for help choosing the right fit.

Is the X Origin tubeless-compatible?

No. The Origin's traditional hooked clincher wheels use inner tubes and are not tubeless-compatible. Front and rear thru-axles give you the flexibility to upgrade to compatible wheels. Upgrade performance wheels sold separately.

What drivetrain does it use?

MicroSHIFT Sword Black 1x9 shifters with an ADVENT rear derailleur, a 38T steel chainring and an 11–46T cassette, including a below-one-to-one climbing gear.

What brakes does it use?

Poseidon Pro5 mechanical-hydraulic performance brake calipers with compressionless housing. Cable actuation at the lever, hydraulic operation at the caliper.

How is the X Origin different from the X Gen 3?

The X Origin shares the proven Poseidon X frame but makes serious gravel riding more accessible with a full-carbon fork with accessory mounts, an ADVENT 9-speed drivetrain, the new ROAM saddle, and Kenda Happy Medium tires. The X Gen 3 features a Sword/Advent X 10-speed drivetrain and tubeless-compatible wheelsand tires, and is about 2 lb lighter in a comparable size.

What warranty is included?

Every Poseidon frame carries a lifetime warranty, and all components carry a one-year limited warranty.

Where do you ship?

Pre-orders include free bike shipping within the contiguous USA.(lower 48)

Where it All Begins.

X Oringin

Pre-Order Now