3T Strada 105 Di2 2x12 Carbon

3T

Strada105 Di2 2x12 Carbon

FrameUnidirectional pre-preg c…3T Fundi Integrale II
GroupsetShimano 105 Di2 ST-R717…Shimano CS-R7101-12 11-34
Wheels3T Discus 40I30 or Zipp…Pirelli or Vittoria (model…
Tire clearance30 mm

The 3T Strada Italia is an aero road bike that prioritizes real-world speed and long-distance comfort over featherweight climbing metrics. Manufactured in 3T’s Bergamo facility using a proprietary filament winding and resin-transfer molding process, this generation refines the original Strada concept by expanding tire clearance to accommodate 30 to 35mm rubber. Visually defined by its deep head tube, curved seat tube, and a flared down tube designed to shield water bottles from the wind, the frame is built to maintain momentum on rolling terrain and broken pavement. It suits riders who want the aerodynamic benefits of a dedicated race machine but prefer a slightly more forgiving posture and the vibration damping of high-volume tires. By adopting a SRAM UDH rear dropout and moving production to Italy, 3T positions the Strada Italia as a premium, future-proofed platform for fast endurance riding and mixed-surface gran fondos.

3T Strada
Build
Size
01 / Buy

Where to get it.

1 retailer · size 54.

Size
1 retailer · Size 54
02 / Specifications

Spec sheet.

Every component shipped with this build.

01Frameset
2 components
FrameUnidirectional pre-preg carbon, High-modulus/high-strength performance blend layup
02Drivetrain & brakes
11 components
CassetteShimano CS-R7101-12 11-34
Chainnull
Bottom bracketnull
Front rotor160mm Shimano RT70
Rear rotor160mm or 140mm Shimano SM-RT70 (depending on availability)
03Wheels & tires
4 components
Front tirePirelli or Vittoria (model may vary depending on availability)
Rear tirePirelli or Vittoria (model may vary depending on availability)
04Cockpit & contact
4 components
SaddleSelle Italia Novus Boost Evo Superflow or Selle Italia Model X Superflow (depending on availability)
Seatpost3T Strada seatpost for Ritchey clamp
03 / Geometry

Geometry & fit.

7 sizes published.

The Strada Italia’s geometry leans away from the aggressive, stretched-out postures typical of pure aero bikes, favoring a fit designed to keep riders comfortable over long distances. Compared to previous iterations, this generation features a higher stack and a slightly shorter reach. This taller front end allows for a more sustainable aerodynamic tuck, reducing strain on the lower back and neck during extended efforts.

The most distinct fit characteristic is the uniform 72.5-degree seat tube angle used across all frame sizes. This slack angle pushes the rider’s weight further back. While 3T pairs the frame with a zero-offset seatpost to help compensate, riders who prefer a modern, forward-biased saddle position over the bottom bracket may find themselves pushing their saddles to the absolute front of the rails to achieve their desired fit.

Handling is shaped by a relatively standard head tube angle and short chainstays, paired with a slightly lengthened wheelbase. This combination yields steering that is communicative and precise without feeling nervous, prioritizing high-speed stability and predictable descending over twitchy, rapid direction changes.

Reach × Stack · size 54mm

Where the handlebar sits relative to the bottom bracket — the single most important fit pair.

615579543506470STACK ↑335356378399420REACH →ENDURANCERACE / AEROSize 54381 · 536
01Fit geometry5 values
Stack536 mm
Reach381 mm
Top tube550 mm
Headtube length143 mm
Seat tube length506 mm
02Component geometry3 values
Crank length172.5 mm
Handlebar width420 mm
Stem length90 mm
03Handling geometry6 values
Headtube angle72.7°
Seat tube angle72.5°
BB drop69 mm
Front center580 mm
Wheelbase985 mm
Chainstay length405 mm

Which size should I buy?

Slide your height to see the recommended size. GearWise's fit algorithm works from the published stack, reach, and ETT — the brand's own recommendation may differ.

Your height
5'8"173 cm
5'0"5'5"5'10"6'3"6'7"
Recommended size54Based on stack, reach & ETT for your height · score 85/100.

Calculated from GearWise's own stack / reach / ETT algorithm — the brand's size chart may recommend a different size, and a proper bike fit beats any calculator.

04 / Other builds

The lineup.

2 builds, ranging $6,999 – $8,299.

The Strada Italia is offered in a focused range of electronic-only builds, anchored by Shimano’s 12-speed Di2 groupsets. The entry point is the 105 Di2 Carbon build, which pairs Shimano’s reliable mid-tier electronic shifting with a 50/34 chainset and an 11-34 cassette. This model utilizes 3T’s Superergo Integrale LTD handlebars and an Apto Integrale Stealth stem, rolling on either 3T Discus 40|30 or Zipp 303 S wheels depending on availability.

Stepping up to the Ultegra Di2 Discus 40|30 build brings a shift toward slightly more aggressive gearing, featuring a 52/36 chainset paired with a 10-34 cassette. This tier also upgrades the cockpit to the Aeroflux Integrale LTD handlebar and the 3T More stem, which includes an integrated GPS mount. Both builds utilize the 3T Fundi Integrale II fork and feature fully internal routing.

Value in the lineup is heavily tied to the Italian-made frame and its advanced carbon construction. While the 105 build offers a more accessible price point, the Ultegra model provides refined shifting and an aerodynamically optimized cockpit. Both options leverage the frame's SRAM UDH compatibility, ensuring the rear dropout standard remains easy to service or replace.

01
WPNT Ultegra Di2 2x12 Discus 40|30 build
WPNT Ultegra Di2 2x12 Discus 40|30
$8,299
02
105 Di2 2x12 Carbon build
· Currently viewing105 Di2 2x12 Carbon
$6,999On this page
05 / Reviews

From the press.

10 reviews from the cycling press.

Reviewers consistently praise the Strada Italia for its remarkable ability to blend aerodynamic efficiency with a highly damped ride quality. On flat and rolling terrain, the bike excels at holding momentum. Testers found that it "slices through the air in a similar fashion to that of a time trial bike" (Road.cc), creating a sensation of effortless speed that makes long days in the saddle feel less taxing. The frame’s compliance, aided by the high-volume tires, effectively mutes road chatter, with one rider noting it rode "as smoothly as freshly churned gelato" (Cycling Weekly) even on rougher tarmac and light gravel.

Handling is generally described as stable and predictable rather than hyper-reactive. The bike tracks securely through fast corners and remains composed in crosswinds, feeling "very planted to the ground" (YouTube) when conditions get blustery. However, this stability and the overall system weight come with a tradeoff in low-speed responsiveness. Multiple reviewers observed that the bike lacks the explosive acceleration of a dedicated climbing frame, feeling slightly sluggish when kicking up steep gradients or accelerating from a standstill. Despite this hesitant initial pickup, the consensus points to a highly capable machine that rewards seated power and excels at maintaining high average speeds over challenging, imperfect roads.

06 / Compared to

Compared to.

Most-viewed comparisons.