Carbon Handlebar
Carbon Handlebar

Carbon Handlebar

SKU: 1C0459

Regular price$159.50
  • Low stock - 2 items left
  • Inventory on the way
  • Free shipping on all orders $49+

The OneUp Carbon Handlebars are designed to provide the best riding experience. The patent pending oval shape of the bar combines the best of 31.8mm and 35mm standards, making it strong, lightweight, and minimizing arm pump and vibration while maximizing steering response.

Unlike other carbon bars that follow the simple tapered profile of aluminum bars, OneUp leverages the benefits of carbon by creating a more complex shape for better performance. If you prioritize bar compliance, the regular 35mm diameter bar is not the solution. Attempting to optimize flex through layup only goes so far.

The OneUp bar minimizes the 35mm diameter clamping area, which is the stiffest portion of any 35mm bar. It then transitions to a flattened, oval shape and finally to a standard 22.2mm clamp diameter for the control zone.

Compared to popular carbon bars and foam-filled aluminum bars, OneUp showed an average 21% increase in vertical compliance and 28% increase in steering stiffness. These are not just small improvements.

The 35mm diameter standard has not had a good reputation, until now. The new OneUp Carbon Handlebar sets a new standard for 35 Dia.


Geometry: 800mm Wide / 35mm Dia. / Sweep 8° Back 5° Up
Weight:  20mm Rise (220g) 35mm Rise (225g)
Max Stem Clamp Width: 65mm
Max Stem Clamp Torque: 6Nm
Max Lever Clamp Torque: 5Nm
Minimum Trim Width: 740mm
Color: Black


Please reach out to us with any questions you may have on anything we sell. We want to make sure you get the right part the first time. Our lifelong riders at Thunder Mountain Bikes are knowledgeable and would love to talk to you!


We currently offer both economy and expedited shipping options though FedEX and USPS. 

Orders totaling over $49 are eligible to ship for free via an economy ground option of our choice. 

If you're in need of something super-quick, please contact us directly. We may be able to overnight your order with an additional fee and depending on your location. 


Should there be an issue with the item you bought, or you no longer need your purchase, we will be happy to set up a return.

All returns must be requested within sixty (60) days of the fulfillment date (i.e. the date we printed the shipping label and boxed up your order.) All returned items must be received in new and unused condition, with the original tags and labels attached, and in the original packaging.  We cannot accept returns on any items that have been installed or show wear of any kind. 

Return Process

To request a return, please visit: and follow the steps to return eligible items from your order. 


After receiving your return and inspecting the condition of your item, we will process your return. Please allow at least seven (7) days from the receipt of your item to process your return or exchange. We will notify you by email when your return has been processed.

For all Special Order items, there is a 25% restocking fee. Special Order items are those that we do not currently stock.


For defective, damaged, or if we sent you the wrong products, please contact us using the phone number or email below.

Other questions?

If you have any questions concerning our return policy, please contact us at:

(928) 282-1106   |

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Customer Reviews

Based on 1 review
Jon Holter
Works great

I can feel the difference