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2022 De Rosa TT03 Disk slips out faster, lighter, ultra-premium carbon time trial bike

2022 De Rosa TT03 Disk disc brake only carbon time trial bike, Team Cofidis TT racing
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De Rosa’s long-running, rim brake TT03 time trial bike gets a lighter, stiffer, and all-around faster disc brake update in the new TT03 Disk. The new disc brake version has been a bit of an open secret since its limited racing debut early this season with Cofidis starting at the Tour of Romandie. But now De Rosa has unveiled the full TT03 Disk details, and that it will completely replace the outgoing rim brake version.

De Rosa TT03 Disk disc brake only TT bike

In designing a new disc brake version to replace their rim brake TT bike, De Rosa improved on three performance characteristics of the previous carbon time trial bike: maximum aerodynamics, reduced weight, and greater stiffness. Approved by the UCI for racing back in February, the sleek new TT03 Disk bike’s overall profile looks quite similar to the outgoing TT03, so it really came down to refined details to make all of those gains…

Improved aerodynamics

2022 De Rosa TT03 Disk disc brake only carbon time trial bike, Team Cofidis TT racing, wide aero fork
all photos c. De Rosa & Team Cofidis

The front end of the new TT bike is much cleaner with the removal of a rim brake from the fork, allowing De Rosa to open the crown much wider to allow free flow of air around the spinning front wheel. This new De Rosa JW fork design also lead to the removal of the old transition shaping into the downtube, now replaced by much flatter smooth sides that stretch from the narrow headtube back along the top & down tubes.

2022 De Rosa TT03 Disk disc brake only carbon time trial bike, Team Cofidis TT racing, warm-up

The upper headset cup is recessed down a bit into a short headtube as you see in many modern TT bikes. But the resulting stem position isn’t as low as others, so the TT03 Disk includes a small hump to smooth airflow off the integrated cockpit onto the flat horizontal toptube.

2022 De Rosa TT03 Disk disc brake only carbon time trial bike, Team Cofidis TT racing

Out back the aero shaping is much the same as before, with the seattube arcing deeply over the rear wheel before shifting vertically as it moves up to the deep aero seatpost. Seatstays again drop down to join the seattube just above the rear wheel cutout, and are set widely like the front end for smooth airflow.

Lower weight

2022 De Rosa TT03 Disk disc brake only carbon time trial bike, Team Cofidis TT racing, team bus

De Rosa shifted to more extensive hi-mod fiber use in the new carbon frame to simply require less material overall, saying it allowed for “natural weight reduction”. But it actually appears that the new frame is a bit heavier at 1230-1250g (vs. 1200g for the rim brake frame) but that is offset by a much lighter new disc brake fork at just 420g (down from 500g for the rim brake fork).

Increased stiffness

2022 De Rosa TT03 Disk disc brake only carbon time trial bike, Team Cofidis TT racing, sprint

But weight loss is never really a significant priority is designing a time trial bike. Instead, De Rosa says that higher carbon spec translates into a “substantial increase in stiffness”. That provides more important power transfer efficiency, ensuring that no rider watts are lost in their race against the clock.

Tech details

2022 De Rosa TT03 Disk disc brake only carbon time trial bike, zoom

Of course, the new carbon bike gets fully internal routing, which De Rosa developed together with the standard Vision TFA aero cockpit, and is compatible with electronic of mechanical drivetrains – and even mechanical disc brakes like the Cofidis Team raced.

2022 De Rosa TT03 Disk disc brake only carbon time trial bike, rear view

The new TT03 Disk features 12mm thru-axles, flat mount disc brakes, a 1.25-1.125″ tapered steerer, a BB86 PressFit bottom bracket, an integrated wedge-style seatpost clamp, and a proprietary aero seatpost with a large range of adjustment to accommodate TT & triathlon positions.

2022 De Rosa TT03 Disk disc brake only carbon time trial bike, geometry

The new bike is offered in just four stock frame sizes, and comes in either the red/black that Cofidis raced or Silver Flash.

De Rosa TT03 Disk – Pricing, options & availability

2022 De Rosa TT03 Disk disc brake only carbon time trial bike, frame kit
2022 De Rosa TT03 Disk frame kit

The new De Rosa TT03 Disk doesn’t come cheap. Seeing the $10,000 / 8000€ price tag, I assumed that was a complete bike, but it’s in fact the frame kit including: frame, fork, headset & seatpost. A complete built kit with Campagnolo Super Record EPS and carbon Vision TT wheels like you see here will sell for 14,500€.

2022 De Rosa TT03 Disk disc brake only carbon time trial bike, Team Cofidis TT racing Dauphine

Get your pocketbook in shape, the new time trial bikes are expected to be available to consumers in the last week of December 2021.

DeRosa.it

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Looks good but ridiculous price
Looks good but ridiculous price
2 years ago

I’m struggling to see the $10,000 value here. There doesn’t appear to be anything overly complex with the construction or groundbreaking with the design. Given that a TT bike doesnt need to withstand the pressure of a 1600+ watt sprint I dont even buy in to the requirement for the frame to be super stiff. As for the phrase “ultra-premium” in the title, I can guess this can be translated as “excessively overpriced”. Come on De Rosa, if you want to regain the brand position you held in the 90s you need to come up with a bit more substance to justify such a price tag. This is a tidy looking frame but it’s real market value is more like $5000-$6000 tops.

David Pfannenstiel
David Pfannenstiel
2 years ago

Speak for yourself I still drop 1300-1500w sprints ony TT bike going for certain KOMs

None Given
None Given
2 years ago

Cervelo called, I guess the P3C is missing….

sk
sk
2 years ago

Strange, I can see a Campagnolo hudraulic caliper on the front fork. Is the picture photoshopped or has Campagnolo secretly started producing hudraulic TT stuff?

Bryin
Bryin
2 years ago

Who buys bikes like this? If you are fast enough to make use of this bike, you have to ride what your sponsor provides….

Evan Bybee
Evan Bybee
2 years ago

It looks like a TRP mechanical-hydro caliper.

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