OSX 35


Our first major success at Chromag was the design and production of forward, relevant handlebars and in 2005, we were arguably the most progressive handlebar producer with some of the widest, strongest bars on the market.  The OSX35 is built off the foundation of the classic OSX, with a 35mm clamp.

  • More DH/Enduro focused than the OSX
  • 35mm clamp
  • 7000 series alloy provides highest strength to weight of all of our bars

Read more about our 2020 Fubars here.

Material // Custom drawn 7000 series alloy
Width // 800mm (31.5”)
Clamp Size // 35mm
Rise // 25mm (1”) and 35mm (1.4")
Bend //
Upsweep //
Weight // 312g

Click here to view the handlebar user guide.

7050 Series Aluminum

We use aerospace grade aluminum to achieve our required properties of strength and toughness, with added resistance to stress and corrosion.

Advanced Heat Treatment

Heat treatment gets thrown around a lot, but most of the time the word consistency doesn’t come along with it. Depending on the batch an individual bar might be subjected to vastly different temperatures during the process. HTX ditches the disparity and provides uniform, quality heat treatment on every single bar.

Refined Geometry

By increasing the tapered sections and using a larger radius we have inherently built more strength into the shape of the OSX.

Variable Butting

Varying the wall thickness of the bar allows us to add strength where it’s needed, and keep the weight down in less strategic areas. The OSX has 7 different butting locations.


Zedler is known within the cycling industry as the foremost test institute for bicycle frames and components.  Based in Germany, they have been making test equipment and conducting third party testing for 30 years.  In the cycling industry, the most common testing standard for bicycles and components, the EN/ISO Standard, is decades old and not really relatable to the kind of loads that modern components see.  For this reason, Zedler have created test standards that test up to the EN/ISO standard and then far beyond this, to simulate the most extreme scenarios that today’s components will see in use. 

Part of the latest evolution of our handlebars was to ensure that all of the design improvements we’ve made translated in to real-world, measurable increases in performance.  Part of this was to build our own test lab and equipment, where we can test prototype and also production batches of handlebars for safety and performance.  We also sent our new carbon bars to Zedler to test them to their high industry standard, which allows us to benchmark them against other products available on the market.

The tests in question relate to the fatigue life of the bar, and are designed to simulate the loads that the handlebar will see over its entire service life. These include a precisely designed and controlled sequence of loads on the handlebar in all directions, and also a ‘Push-Pull Test’ which as the name suggests, pushes and pulls on the bars with a high force, in the middle of the test. In the real world, this could relate to landing a large drop to flat after already riding the bar for a few years.

Both the Cutlass and BZA passed the highest test standard available from Zedler, the ‘Advanced Plus’ test. Both handlebars were intact at the end of these tests, and we stopped ‘End of Life’ testing when it became clear that it may take many more rounds of testing to see a failures from the bars.

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Bank Sock Chromag Bikes Mountain Bike Socks

Bank Sock

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Customer Reviews

Based on 12 reviews
Sinisa C.

OSX 35

Matthew B.
Dope bars

Great bars, rise is just right for me. And they look awesome

Xavier H.
excellent bars

Awesome bars, I got those on my dirt jumper and I really like. Never went back!

Craig H.
So far so good

So far so good

The allrounder

Perfect all-round bar, great balance between stiffness and flex and the angles/geo suit me perfectly. Just swapped these out from another brand's OEM carbon bar because I don't like the feel of carbon bars and these are amazing.

Mike T.
Great for bike parks!

Had the carbon Pivot bars that came with my Mach 6 ... Ride almost all park so wanted alloy ones, figured I'd ride the carbons for a few months though. Big mistake. Had a crash and they broke right at the brake. Killington Bike Park only had these OSX 35s so I didn't have a choice, but after riding hard on em for a week now, they're definitely something I'd buy again. They're the right width and have just the right combination of flex and stiffness. Plus they look sick!


Go to bars for my dirt jumper builds, haven't bend one. Solid!

Ronald M.

I'm very much Happy and Contended when I put my Chromag OSX 35 bar in BLUE color in my Giant XTC 2021! 🌟 🌟 🌟 🌟 🌟