Helix OS

The Helix OS takes our signature Helix tube set and adds current component design elements to create one of the most exciting road race frames for 2012. By adding a SRAM Pressfit 30 bottom bracket to this frame (which requires BB30 cranks), we have increased stiffness for maximum power transfer. We have also increased the headtube diameter for more responsive handling and to accept a Cane Creek 110 ZS 44mm headset. Our proven Pro Competition geometry can be found on this top level race frame allowing for an aggressive riding position. The combination of these features make the Helix OS the pinnacle of our road racing lineup.

At first glance you will notice the spiral shaped tube design that adds significant stiffness to the structural integrity of the tube without adding additional weight. The HELIX shaped tubeset provides the rider with the highest overall balance of performance characteristics with the least amount of compromise that you are forced to expect in many other frame designs.

Different forces occur when braking, accelerating, climbing and descending. It was our challenge to create a tubeset that best handles all of these various force vectors and create a harmonious balance between them with minimal compromise. More force can be applied to the frame without any loss in pedal efficiency or sacrifice in performance. Not to mention the unmatched durability that only titanium can offer. No longer do you have to sacrifice handling or performance strictly for weight savings.

I just absolutely love my new Helix OS. I liked the R340, but the difference between the two frames is night and day. Since March 15 I have put about 600 miles on it.

I am constantly amazed at the efficiency of the power transfer on each pedal stroke. It seems sometimes I just barely have to press the pedal a little harder to get significantly more speed. It has been pretty amazing to me to see the performance increases on my rides since moving over to this frame. I am doing many rides at paces comparable to my peak fitness of last fall, and by no means feel I am at peak right now. I honestly feel I can push at least one more gear on this bike than I could on the R340.

As a big rider (6 Feet, 200lbs) I find it really responsive with a wonderful ride. I do think the ML size frame is a better fit for me than the M was on the 340. I'm using the Wheelsmith BB30 adapter with Dura Ace cranks and it's performed really well. No BB creaking or noises and I can't imagine it being any stiffer or more responsive.

Greg Gibson
Photographer
Washington, D.C.

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Features

• Race-tuned Helix Technology tubeset for maximum stiffness and power transfer
• Asymmetric chainstays and Helix shaped seatstays resist vertical forces to enhance sprinting and climbing
• Pro Competition geometry allows for aggressive position, excellent stability and precise handling
• Helix shaped tubeset best resists the torsion and bending that occurs during riding and competition
• Helix Technology tubeset provides the highest overall balance of performance with the least amount of compromise
• Custom machined clover-leaf drop-outs add style and strength
• Downtube shifter cable routing with Adjusters on headtube for easy access
• 34.9mm clamp-on front derailleur
• 27.2mm seatpost size (seatpost clamp included)
• SRAM Pressfit 30 bottom bracket increases stiffness for maximum power transfer (requires BB30 cranks)
• Oversized headtube that is Cane Creek 110 ZS 44mm compatible for more responsive handling