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Flatbar X Ambition
Flatbar X Ambition

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Bike Description & Terrain

Ambition helps motivate us. It helps us strive for more and reach new goals.

The X Ambition is built for more. More miles, more adventures, more smiles! You may know the Poseidon X and the X Ambition is the more improved version. We focused on improved comfort with a more upright riding position and a new saddle design. We increased braking power by adding the same brakes as the Redwood and completed the build with 700 x 40 Kenda Happy Medium tires for good speed on the road and grip on gravel.

X Ambition vs Redwood Comparison

Difference between the standard X and the X Ambition: We get this question every so often so we figured we'd explain a little further. The X Ambition offers a more upright seated position which is more comfortable and upright (see image below). The X Ambition offers stronger brakes like our Redwood model. We offer a newer comfort forward saddle which may work better for more riders across the board. The X Ambition also comes with 700 x 40 tires which gives the ride a little more of a plush ride feel but the tread pattern allows this bike to accel on dirt and pavement.

Watch a video comparison from the Bike Sauce here.

Road to Trail

Road to Trail

Sizing Specifications

Full Specifications

Frame

Aluminum. (Lifetime Warranty)

Seat Post

27.2 Alloy

Fork

Full Carbon

Weight

25lbs

Shifters

Microshift Advent X.

Pedals

Microshift Advent X.

Handlebars and Stem

Poseidon Flatbar 720mm wide.
STEM: 31.8 Diameter with +\- 7 Degrees. Small- 90mm, Medium- 100mm, Large, XL and XXL- 110mm

Tires

700 x 40 Kenda Happy Medium

Brake Levers

Flatbar Tektro Mechanical Short-pull.

Wheels

700c Quick-Release Clincher Wheels. 32h rims with hub spacing of 100mm (front) and 135mm (back). 19mm inner rim width, we recommend a tire range of 700x25-42 on the X frames.

Rear Derailleur

Microshift 10-Speed Advent X with Clutch.

Bottle Cage Boss

3 on the size Small, 4 on sizes M, L, and XL. 2 on each side of the fork with a load capacity of 3.5lbs.

Brakes

MD-C550 Mechanical Flat Mount Brake Calipers.

Crank

Prowheel Charm 170mm Crankset with 38t 104 BCD Narrow-Wide Chainring.

Disc Rotor

160mm Tektro

Chain

KMC X10

Bottom Bracket

68 x 110.5 English Threaded Square Taper.

Cassette

11-48 10-speed Microshift Advent X.

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Customer Reviews

Based on 137 reviews
88%
(121)
9%
(13)
1%
(1)
1%
(1)
1%
(1)
J
Jaewon Drake
Incredible bike for the price

I'm amazed at how this bike performs for the price. It shipped in a very carefully packaged box and everything was easy to assemble using the provided video.
I upgraded from an old Canondale mountain bike and couldn't be happier!

S
Susan Bridgman
Overall Super

I ordered the AmbitionX, with flat bar. This is my first gravel bike and first flat bar bike. Customer service was outstanding, I called before ordering to help with size and to feel comfortable ordering a bike online that would ship from CA to NC. It felt like I was talking to a knowledgeable friend, helped me feel confident in ordering.
The bike is awesome, the style is attractive, smooth ride and handles well, the flat bar feels great. The overall value of the bike based on quality is unbelievable. I have 3 other types of bikes and this may be my new favorite!!
Highly rated company any, highly rated product.
Thank you Poseidon.

Shop Bike Essentials
About Poseidon Bikes
Dedicated to Quality & Affordable Adventures
Building The Highest-Value Bikes In-House

Discovery doesn't need to be unattainable and Exploration should be something right out your door. We produce our bicycles in a factory we own and operate to ensure you have an affordable price. We're Breaking the Barrier to Discovery and Adventure so you can experience what so many others have done before us.