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Chiron Frameset


Bike Builder

Ride Now, Pay Later

Handcrafted in Denver Colorado

Whether you’re lining up in the grid for a weekend cross race or smashing a week day gravel ride, the Chiron propels you forward with the classic ride quality our Eros is renowned for. The Chiron boasts state-of-the-art titanium craftsmanship for the cyclocross and gravel connoisseur. Easily the highest performance and most stunning titanium bike in any starting grid. S-bend seat and chain stays dampen the ride and keep the rear tire tracking while also offering more tire clearance than a traditional CX or Gravel frame. Chiron’s tapered down tube and top tube translate into increased stiffness and torque at the bottom bracket. American-made seamless 3a/2.5v titanium tubing creates a frame that holds up to any abuse and delivers world-beating performance.

Frameset Features

// Proprietary Alchemy USA-Made Titanium

The first frame Alchemy produced was titanium, and it immediately received accolades and awards. That didn’t mean we rested on our laurels though. Over the years, we have continued to develop and refine our titanium bikes. Five years ago, we took a giant step and did what few in our industry dared to do: we created our own proprietary USA-made titanium tubing. It’s the reason we have been able to stay one step ahead of the competition, and the reason why Alchemy continues to produce titanium bikes that are heads-and-tails superior to other bikes on the market.

// Oversize and Shaped Top and Down Tubes

Take a close look at an Chiron frame…do you see the unique profile and oversize shape of the top and down tubes? Do you see the way the down tube flares, seamlessly flowing into the bottom bracket? This of course helps create a visually-stunning Alchemy bike, but there is also science behind the art. The oversize tubes and proprietary shapes create a bike which is stiff but comfortable, compliant yet responsive, fast and capable, yet easy to handle in the most demanding conditions. It’s the reason why Alchemy continues to earn accolades for making the best titanium bikes in the business.

// Natural or Painted Ti Options

Alchemy continues to be one of the few companies in the world that is able to paint titanium. At our Ethic paint studio, housed inside Alchemy headquarters, we have obsessively perfected the process of painting titanium to both create a unique and durable frame. And we can do custom paint as well…perfectly designed to meet your creative imagination.


  52 54 56 58 61
Seat Tube Length C-T 490 538 562 580 595
Effective Top Tube 530 549 563 575 601
Head Tube Length 135 155 175 195 215
Head Tube Angle 71.8 72.0 72.5 72.5 73.2
Frame Stack 552 570 592 610 634
Frame Reach 372 383 388 391 406
Seat Tube Angle 74.0 73.8 73.5 73.2 72.8
Chain Stay Length 421 421 421 421 421
Bottom Bracket Drop 74 74 74 74 74
Trail 64 63 59 59 55

Pricing and specifications subject to change at any time without notice.

Frame Geometry

Alchemy 100% Guarantee

Free Shipping on All Bikes

Not everyone can drive to Alchemy’s headquarters to pick up a bike, so we made things easy. When you buy a bike from our website, you get free shipping straight to your door.

Two Weeks, Risk-Free

Purchasing your dream ride is a substantial investment, so here’s our promise: If you are not 100% satisfied with your new Alchemy Bicycle, you have two weeks from date of purchase to return it.

No Questions Returns

If at the end of two weeks you are not 100% satisfied with your new bike, call us to arrange a full refund or credit toward another Alchemy.