The Helios carbon road frame is the flagship of the Alchemy road line. Purpose-built for the performance-hungry rider by blending DNA from our Arion aero road bike with the more traditional round tubes of the Xanthus.  It is the do-it-all double helix of all-around performance. No road is too twisty, too rough or too steep. Helios is always ready for the hunt. 

“… a lively ride character that is very responsive to any sort of steering input. That makes it a thrilling bike to ride, fast-paced and energetic.”

Dave Arthur,

“The Helios is my go-to bike because it combines stiffness, comfort and traction for any style of ride: climbing, grand fondo, commuter and descending. It is the rouleur in the collection.”

Ryan Cannizzaro, Founder Alchemy Bicycles



Frameset Price: $5,499.00



Frameset Price: $4,999.00



Helios | Carbon Fiber Road

Blending DNA from our Arion aero road bike with the more traditional round tubes of the Xanthus creates the ultimate do-it-all double helix of all-around performance. A dash of aggression mixes the salty with the sweet via radically (and painstakingly) shaped top and down tubes.

For a lighter option with no sacrifice of integrity we offer the Helios SL. The SL version offers strength and structure as the Helios, but in a featherweight package.


  • Alchemy’s award winning carbon fiber layup
  • Alchemy shaped top tube
  • Alchemy shaped down tube flares at the bottom bracket and head tube for added rigidity
  • Alchemy QR or Speed Release (thru axle) flat mount brake carbon dropouts
  • 44mm head tube
  • ENVE 1 1/4″ fork
  • Cane Creek headset
  • Mechanical and electronic compatible
  • PressFit 86 bottom bracket
  • Made in Denver, CO


52 cm 54 cm 56 cm 58 cm 61 cm
Seat Tube Length 470 520 540 560 575
Effective Top Tube 522 543 560 575 601
Head Tube Length 120 140 160 180 200
Head Tube Angle 72.7 73.0 73.2 73.5 73.8
Frame Stack 532 552 572 592 612
Frame Reach 368 382 390 396 411
Seat Tube Angle 74 73.8 73.5 73.2 72.8
Chain Stay Length 407 407 410 410 412
Bottom Bracket Drop 70 70 70 70 70
Trail 60.8 58.6 57.4 55.5 53.7