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Giant Trinity Advanced SL Time Trial vs Trek Speed Concept TT
Pick up to 4 bikes. Rows line up component by component. Highlighted rows differ, and green marks the best value where lower or higher is clearly better.
Key differences
- The Giant Trinity Advanced SL Time Trial starts €2,500 cheaper (€4,299 vs €6,799 for the Trek Speed Concept TT).
- Tire clearance: up to 30 mm on the Giant Trinity Advanced SL Time Trial vs 25 mm on the Trek Speed Concept TT.
- The Giant Trinity Advanced SL Time Trial comes in 4 sizes, the Trek Speed Concept TT in 3.
Giant Trinity Advanced SL Time Trial
Trek Speed Concept TT
| GiantTrinity Advanced SL Time Trial | TrekSpeed Concept TT | |
|---|---|---|
| Overview | ||
| Brand | Giant | Trek |
| Build | Trinity Advanced SL Time Trial Frameset | Speed Concept TT Frameset |
| Build notes | Includes frame, fork, AeroDrive base bar with integrated stem, Sync armrest set with 10 and 15-degree extension wedges, Trinity Composite seatpost, computer mount and a down-tube bottle and cage. GBP is the original price on Giant's UK site, which shows it reduced to £2,799; EUR from Giant's Netherlands site. | GBP price from trekbikes.com/gb and EUR price from trekbikes.com/de. Trek says the size-specific seatpost and cockpit parts are sold separately with Speed Concept framesets. |
| Price (MSRP) | €4,299$6,000£3,750 | €6,799$5,500£6,200 |
| Model year | 2025 | 2026 |
| Generation | Trinity Advanced SL (successor to the rim-brake Trinity Advanced Pro) | 3rd generation (Speed Concept 3.0) |
| Launched | 2025-01 | — |
| Discipline | Time trial | Time trial |
| UCI legal | Yes | Yes |
| Verdict (out of 100) | ||
| Aero | 84 | 82 |
| Frame | 82 | 86 |
| Hydration & storage | 45 | 42 |
| Fit | 84 | 66 |
| Practicality | 62 | 60 |
| Frame & fork | ||
| Frame material | Carbon (Advanced SL-grade composite) | 800 Series OCLV Carbon |
| Fork material | Carbon (Advanced SL-grade composite, full-composite steerer) | Carbon (Speed Concept full foil, integrated brake and stem) |
| Max system weight | — | 125 kg275.6 lb |
| Frame sizes | XS, S, M, L | S, M, L |
| Colours | Carbon/Chrome | Deep Smoke/Gloss Trek Black |
| Also available as | Trinity Advanced SL triathlon frameset and complete bikes (hydration reservoir and bento box, higher armrest stack) | Speed Concept SLR triathlon frame (storage, IsoSpeed, 78-degree seat angle, sizes S to XL) |
| UCI frame approval | The UCI list of approved framesets (version 2026.10.02) has one 2025 Trinity entry, MY25 TRINITY ADV PRO (frame and fork), category ALL, sizes XXS-L (5), approved 21 April 2024, code GIANT-039; the list does not use the Advanced SL name | UCI-approved as 'MY22 Speed Concept TT' (frame and fork code TREK-061), approved 28.01.2021, sizes S to L (3). The list also has a separate 'Speed Concept TT' entry (TREK-070) approved 12.05.2023 for size 58 only (UCI list version 2026.10.02) |
| UCI configuration | Giant says the Trinity Advanced SL frameset is compliant for TT events; this kit is the TT configuration with a down-tube bottle and cage. | — |
| Compatibility & standards | ||
| Brake type | Flat-mount disc | Hydraulic disc |
| Max rotor size | 160 mm | 160 mm |
| Wheel size | 700c | 700c |
| Max tire width | 30 mm | 25 mm |
| Bottom bracket standard | Press-fit (PowerCore, 86mm wide) | — |
| Front axle | 12x100 thru-axle | — |
| Rear axle | 12x142 thru-axle | — |
| Max chainring | — | 58T |
| Cable routing | Internal derailleur and brake housing | Internal |
| Hydration & storage | ||
| Integrated hydration | No | — |
| Hydration details | Ships with a down-tube bottle and cage instead of the triathlon version's hydration reservoir and bento box. | — |
| Integrated storage | No | — |
| Bottle mount locations | Down tube | — |
| Fit & adjustability | ||
| Aerobar system | Giant AeroDrive base bar with integrated stem, Sync armrest set and 10 and 15-degree extension wedges | Integrated Speed Concept cockpit; size-specific cockpit parts are sold separately with the frameset |
| Pad stack adjustment range | Arm pad stack 582-662 mm (XS) to 643-723 mm (L) | — |
| Pad reach adjustment range | Arm pad reach 339-414 mm (XS) to 395-470 mm (L) | — |
| Pad width range | Eight armrest width settings | — |
| Extension options | 10 and 15-degree extension wedges; armrest angle 0, 10 or 15 degrees; four extension width settings | — |
| Seatpost type | Trinity Composite aero seatpost, four offset positions (51 mm range) | — |
| Saddle position range | Four seatpost offset positions spanning 51 mm | — |
| Effective seat angle range | — | 76° (nominal) |
| Aerodynamics | ||
| Testing method | CFD plus wind-tunnel testing with a dynamic mannequin with articulating legs | — |
| Tube profile | Truncated ellipse tubing (AeroSystem Shaping) | KVF (Kammtail Virtual Foil) |
| Travel, maintenance & warranty | ||
| Proprietary parts | — | Integrated fork/stem, cockpit parts and seatpost (size-specific, sold separately) |
| Frame warranty | Lifetime limited warranty on the frame and ten years on the rigid fork, original owner only (US) | — |
| Sold via | Giant online store with assembly and pickup through authorized Giant retailers, and in-store | Trek retailers and trekbikes.com |
| Cockpit | ||
| Basebar | Giant AeroDrive base bar | — |
| Arm pads / cups | Giant Sync armrest set | — |
| Stem | Giant AeroDrive integrated stem | — |
| Saddle & seatpost | ||
| Seatpost | Giant Trinity Composite | — |
| Geometry (smallest – largest size) | ||
| Sizes | XS, S, M, L | S, M, L |
| Rider height min | 159–181 cm5′3″–5′11″ | 154–175 cm5′1″–5′9″ |
| Rider height max | 169–191 cm5′7″–6′3″ | 167–186 cm5′6″–6′1″ |
| Stack | 490–551 mm19.3–21.7″ | 484–533 mm19.1–21″ |
| Reach | 397–452 mm15.6–17.8″ | 398–434 mm15.7–17.1″ |
| Pad stack min | 582–643 mm22.9–25.3″ | — |
| Pad stack max | 662–723 mm26.1–28.5″ | — |
| Pad reach min | 339–395 mm13.3–15.6″ | — |
| Pad reach max | 414–470 mm16.3–18.5″ | — |
| Seat angle min | 77° | 76° |
| Seat angle max | 77° | 76° |
| Head tube angle | 72–73° | 72° |
| Head tube length | 85–145 mm3.3–5.7″ | 65–115 mm2.6–4.5″ |
| Effective top tube | 510–579 mm20.1–22.8″ | 518–566 mm20.4–22.3″ |
| Seat tube length | 477–565 mm18.8–22.2″ | 499–549 mm19.6–21.6″ |
| Chainstay | 405 mm15.9″ | 410 mm16.1″ |
| Wheelbase | 974–1,039 mm38.3–40.9″ | 982–1,034 mm38.7–40.7″ |
| BB drop | 70 mm2.8″ | 72 mm2.8″ |
| Fork offset | 40 mm1.6″ | 45 mm1.8″ |
| Trail | 63–69 mm2.5–2.7″ | 63 mm2.5″ |
| Standover | 758–838 mm29.8–33″ | 751–800 mm29.6–31.5″ |
| Saddle height min | — | 559–604 mm22–23.8″ |
| Saddle height max | — | 756–805 mm29.8–31.7″ |
| Wheel size | 700c | 700c |
| Crank length | 160–172.5 mm6.3–6.8″ | — |
| Basebar width | 400 mm15.7″ | — |
Geometry overlay
Pick a size for each bike to see frames and arm-pad ranges on top of each other.
Drawn to scale (how to read it).