Seven different sizes with the same tuned ride. The only way to do this is to obsess over every carbon ply and arrangement. It isn't the kind of glamorous work that lands you on the cover of magazines. Nope. It's scientists scrutinizing every thickness and shape, having heated arguments over stiffness targets and handling prowess like we have our own model UN, but you'd never notice that when you're riding a Tarmac. You'll just feel like you're riding the perfect bike.
Not Everyone's Kind of Puzzle
A Bike in 500 Pieces
We added 200 more pieces to this carbon layup. Why? We asked ourselves that same question after our fifth cup of coffee one night, but the answer is easy. You. The last Tarmac's layup was the most complex we'd ever created, but the added complexity found here has given us more opportunities to shave grams and tune the ride. You deserve the best ride in the world, after all, and it's our job to go to ridiculous lengths to give it to you.
No One Else Would Go to This Length
We literally examine every ply of carbon on every single frame size we make to ensure that all of our performance targets come through on the finished product. The process is absurdly detailed, because what works on a 49cm doesn't work on a 61cm. So, to make sure you get the perfect ride, every frame gets a unique layup schedule with different ply arrangements, orientations, quantities of material in specific areas, and sometimes, even exclusive thicknesses and types of carbon itself.
Below, you'll find just a few of these places where this dark magic is applied:
Seat Tube Materials
When you think of the seat tubes of a 49 and 61cm Tarmac, there's a size difference, sure, but you probably don't know that different materials were used to make them. And actually, this is true throughout the size range. For example, the ply that reaches from the bottom bracket to the top tube on a 61cm uses a thicker, stiffer carbon fiber than what’s used on, say, a 49 or 56cm frame. This ensures that both big and small riders will feel just the right amount of seat tube deflection, which'll save your back and posterior on long, hard days in the saddle.
Bottom Bracket Stiffness
You know that instantaneous acceleration you get from a Tarmac? One of the main contributors is bottom bracket stiffness. Everyone talks about it, but most don’t realize that bottom bracket stiffness values aren’t linear throughout sizes. Say what? Well, a 61cm needs more material to meet the same stiffness standards as, say, a 49cm. And for this reason, we added three-times the amount of extra-long pitch fibers to specific areas of the bottom bracket in order to reinforce the larger sizes. This is where that race-winning Tarmac "snap" comes from—no matter the size.
Head Tubes & Handling
While bottom bracket stiffness may be the key to power transfer, head tube stiffness is paramount to the Tarmac’s perfectly precise handling. Railing corners, navigating through the peloton, dodging last-minute potholes—yeah, that’s all head tube stiffness, which is why we put such an emphasis on nailing it. Due to the nature of physics, larger bikes and their longer tubes need more stiffness to meet the same standards as their smaller counterparts. So, with the Tarmac, we determined that by adding plies in different orientations, and in precise locations, we could get the same “corners on rails” feeling throughout the entire size range.