All-City is no stranger to steel, style, and smooth-riding bikes. The Cosmic Stallion remains the raciest option in their Endurance / All-Road category, featuring a new-school carbon fork and disc brakes, combined with tried-and-true geometry, threaded bottom bracket, and double chainring crankset. 2019 brings an all-new paint job, new Shimano drivetrain, and other detail updates, sure to win even more fans for this modern classic.


2019 All City Cosmic Stallion

Let’s start with what hasn’t changed since the last time we saw this bike. First, the A.C.E. or Air Hardened, Custom Extruded tubeset, with variable thickness for smooth ride quality and reduced weight. Second, it wouldn’t be an All-City without the custom dropouts – with thru-axle compatibility and a replaceable derailleur hanger. Third, the Whisky No.9 carbon fork, matching the rear triangle with generous tire clearance. Finally, you get all of the practical touches that will make your mechanic a happy camper – threaded bottom bracket, E.D. coating to prevent rust, external cable routing, and post-mount brakes.


The first big update is to the component spec, which shifted from SRAM Rival 22 to a Shimano 105 R7000 kit (yes, including cranks). Brakes carry over as Avid BB7 Road, post-mount. [Correction: Last year’s spec was actually Rival 22 Hydraulic. -Ed]


You’ll also find a new cockpit, which has been updated to Whisky No.7 spec all-around.


Tire clearance remains generous, at 700 x 41mm without fenders, or 700 x 35mm with fenders. It also supports 650b wheels and tires, fitting up-to-47mm rubber.



All-City still offers the Cosmic Stallion in six frame sizes, with the complete bike price holding steady at $2,599. The frameset price went up $50, to $1,299. While there are more and more gravel-esque bikes showing up by the day, the Cosmic Stallion fills a nice gap of price, practicality, and hitting the high points of modern tech to make it a legitimate contender for the race-minded among you.


  1. This spec should not exist. 2004 wants its brakes back. Has anyone here ever used a full length housing mechanical rear brake with standard cheap housing? Which I promise this bike comes with.

    $2600 is sad.

  2. All-City bikes are meant to be bought as framesets and they know the people who truly cherish their craftsmanship & ride quality will build them how they want. I’m on my third Nature Boy, and while I bought the first as a complete (at half price), it was stripped to the frame in no time.

    • Agree w this. If youre considering buying a low to mid-tier factory completes (for whatever reason) do yourself a favor, build it up from a frameset instead

      • Wouldn’t the cost of building this from the frame up get much, much higher? Especially if you wanted to go hydros? Legit question because I’m considering this bike.

        • I agree. I considered building a 2018 Cosmic Stallion from a frame, but I liked the Rival 22 Hydro setup, so I bought the complete. I replaced the wheels, stem, saddle and seat post with parts that suited me better, selling or repurposing the originals. After a year, I sold the frame and bought a Black Mtn MCD because the geometry fits me better. I moved the drivetrain etc. over to the new frame and I’m enjoying it now.

  3. Agreed, this is a huge disappointment. Instead of upgrading to flat mount hydraulic, they leave it as post mount and downgrade to mechanical?? And leave the price the same?? Bizarre decision from All-City, IMO.

    • Hydraulic is a definite upgrade, but flat mount is a miss here. It’s really best left to mass-produced carbon frames instead of steel, mostly due to difficulties in making precise dropouts suitable for the caliper. Plus, some people talk of different “feels” between flat and post (I can’t speak to that), and if somebody wants a flat bar cross bike, they’re going to have an easier time finding brakes with post mount.

    • Glad All City stuck with post. At best flat mount is as easy to adjust as post; at worst — which is most of the time — it is much more difficult to set up. Common problems: misalignment of the mount and paint or metal burs on the mating surface. Usually it is both. Flat mount is the new press fit.

  4. They should really market this bike to fit 45c tires because it can (running 43mm GravelKings on Velocity Blunt 35’s & they measure out to 46mm with plenty of wiggle room). It’s also internal Di2 compatible which not many other bikes can do in this price range. Mech/Hydro shifters are also so big and ugly. Plus they don’t perform that and feel like trash, Install some elite link housing for the rear brake and you’re solid. It’s hard to find a more capable complete for less without the frame feeling like total garbage.

  5. BB7’s are less service heavy. The trade off for a Shimano spec is to use less expensive parts elsewhere. Something had to give.

    Might as well be the hydro road levers/brakes. It gives people an upgrade route down the road.

  6. Where’s the longer offset fork on the smaller sizes to go with those slack HT angles? 80 & 73mm trail on those x2 small sizes and 65mm on the x3 largest. Why go to the trouble of offering small sizes if you’re not prepared to do them correctly?

    • If I need one of those small sizes, I’d look for a bike designed around 650b wheels. No amount of geometry tinkering makes 700x40mm tires appealing in small frames.

  7. I still use mechanical disc on my gravel race & commuter bikes… hard to beat their reliability and ease of maintenance and power/modulation is fine if you use good housing. Besides, on gravel it’s not like you’re on the brakes much. Just point it in a direction and go.

      • Of course, we transition through the rounds of subjective musical chairs once again. Not all gravel is Midwestern farm grid with maximum 2mi climbs and the same on the backside. Brakes, what for? Some of us actually climb mountains and have to negotiate descents that make flatlanders pucker. Hydro desired. Kevin C, making broad sweeping generalizations, precious.

        • I agree that the brakes are a downgrade for the bike but I’ll also defend my TRP Spyre SLC brakes to the death. They’ve seen me up and down several Crusher in the Tushars and all over the gnarliest fire roads in Northern Utah. But yeah, hydraulic just makes sense when you’re dropping this much on a gravel bike.

      • I think the point was that mechanicals are good brakes, too, not that you don’t need good brakes or that all gravel is flat farm grid. I ride bikes with mechanicals and hydros on steep mountain terrain and both work very well when set up properly. There are trade-offs with either, but either does the job, including BB7s.

  8. I will keep beating the sliding dropout drum though… seems like a good idea as a bail-out option if you run gears and for those of us looking for nice ss options.

  9. The Cosmic Stallion is not a CX bike, the Milwaukee Mettle you posted is. Completely different geometries and intentions.

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