Specialized

S-Works Shiv TT Disc Frameset

What Our Gearhead® Experts Are Saying:

"The Shiv TT Module is purpose-built for riders who want to control every detail of their TT setup. The BSA threaded BB, electric-only internal routing, and flat-mount disc interface make this frameset highly compatible with top-tier groupsets. The integrated aerobar and Retül-backed geometry mean fit and aero are optimized from the start - this is a serious race platform, not just a pretty frameset."

Who It's For

Elite and competitive TT and triathlon athletes building a custom race-spec machine

The S-Works Shiv TT Disc Module is aimed at experienced time trialists and triathletes who understand their fit needs and want to build a bike around a world-class frameset. The electric-only internal routing makes it an ideal match for Shimano Di2 or SRAM eTap AXS builds, and the flat-mount disc interface pairs cleanly with modern high-performance brake calipers. Riders who have dialed in their position through professional fitting will appreciate the precision adjustability built into the front-end system.

What It's For

UCI-legal competition across the full spectrum of modern time trial and triathlon courses

The Shiv TT is engineered for courses that demand more than straight-line speed. The disc brake platform enables confident late braking on technical courses, while the Win Tunnel-optimized frame shape maintains aero efficiency without sacrificing handling. With geometry spanning XS through L and a reach range from 378mm to 420mm, the frameset accommodates a wide range of rider positions and fits. The 12x142mm rear and 100x12mm front thru-axle standard provides a stiff, precise chassis foundation regardless of wheel choice.

Why We Like It

A UCI-legal aero platform that refuses to trade performance for compliance

The FACT 11r carbon construction sits one tier below Specialized's flagship FACT 12r, but delivers exceptional stiffness-to-weight for a frameset at this price point - the medium size comes in at a claimed 2.69kg. The Win Tunnel-engineered silhouette is optimized across real-world TT conditions, not just a velodrome straight, and the BSA threaded bottom bracket shell is a pragmatic choice that broadens compatibility and simplifies long-term maintenance compared to press-fit alternatives.

The integrated Shiv TT bar and stem aerobar reduces frontal area and system weight while the updated spacers, bridge, and armrest system allows for fine-tuned position locking backed by years of Retül rider data. Flat-mount disc brakes are integrated without aero penalty and enable late-braking capability and consistent stopping power in wet or variable race conditions. Internal electric-only routing keeps the silhouette clean and ensures full compatibility with Shimano Di2 and SRAM eTap AXS.

The geometry table reveals a thoughtfully designed fit platform - stack ranges from 485mm to 495mm across sizes, with reach spanning 378mm to 420mm, giving fitters meaningful range to work with. The 74.5° to 75.75° seat tube angle suits the aggressive hip position demanded by modern TT and triathlon racing. For athletes who have invested in professional bike fitting and want a frameset that can actually execute that fit with precision, the S-Works Shiv TT Disc Module is the benchmark.

Heads up - We do our best to keep bike specs and images current, but occasional component changes can happen without warning-and sometimes the photos might not show the exact build you'll receive. If you want to double-check the details, our Gearheads are always here to help.