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Giant Trinity Advanced SL Time Trial vs Ridley Dean Fast Disc
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 €700 cheaper (€4,299 vs €4,999 for the Ridley Dean Fast Disc).
- Tire clearance: up to 30 mm on the Giant Trinity Advanced SL Time Trial vs 32 mm on the Ridley Dean Fast Disc.
- The Giant Trinity Advanced SL Time Trial comes in 4 sizes, the Ridley Dean Fast Disc in 3.
Giant Trinity Advanced SL Time Trial
Ridley Dean Fast Disc
| GiantTrinity Advanced SL Time Trial | RidleyDean Fast Disc | |
|---|---|---|
| Overview | ||
| Brand | Giant | Ridley |
| Build | Trinity Advanced SL Time Trial Frameset | Dean Fast Disc 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. | Ridley sells the Dean Fast as a frameset only (frame, fork, Forza TTT basebar and Forza Aero seatpost); colours are chosen in Ridley's configurator. |
| Price (MSRP) | €4,299$6,000£3,750 | €4,999€4,999£4,499 |
| Model year | 2025 | 2024 |
| Generation | Trinity Advanced SL (successor to the rim-brake Trinity Advanced Pro) | Dean Fast (disc, 2023) |
| Launched | 2025-01 | 2023-08 |
| Discipline | Time trial | Time trial |
| UCI legal | Yes | Yes |
| Verdict (out of 100) | ||
| Aero | 84 | 86 |
| Frame | 82 | 84 |
| Hydration & storage | 45 | 45 |
| Fit | 84 | 48 |
| Practicality | 62 | 62 |
| Frame & fork | ||
| Frame material | Carbon (Advanced SL-grade composite) | Carbon (Ridley Elite Series, Toray 60T/50T/30T/24T mix) |
| Fork material | Carbon (Advanced SL-grade composite, full-composite steerer) | Carbon (Noah Fast Disc fork, 60T-40T-30T HM UD, in-mould F-Surface) |
| Frame weight | — | 1,250 g2.76 lb |
| Fork weight | — | 460 g16.2 oz |
| Weight measured on | — | Size M, Ridley claim reported by BikeRadar; basebar 341 g |
| Frame sizes | XS, S, M, L | S, M, L |
| Colours | Carbon/Chrome | — |
| Also available as | Trinity Advanced SL triathlon frameset and complete bikes (hydration reservoir and bento box, higher armrest stack) | — |
| 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 'Dean Fast Disc' (frame and fork code RIDLEY-DEAN), approved 01.05.2023; the list (version 2026.10.02) names only size M (1) |
| 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 (flat mount) |
| Max rotor size | 160 mm | — |
| Wheel size | 700c | 700c |
| Max tire width | 30 mm | 32 mm |
| Bottom bracket standard | Press-fit (PowerCore, 86mm wide) | PF30 (press-fit) |
| Front axle | 12x100 thru-axle | 12x100 thru-axle |
| Rear axle | 12x142 thru-axle | 12x142 thru-axle |
| Drivetrain compatibility | — | Electronic groupsets only; Universal Derailleur Hanger (UDH) |
| Mechanical shifting possible | — | No |
| 1x compatible | — | Yes |
| Max chainring | — | 60T |
| Front derailleur mount | — | Removable bolt-on hanger with two clamp options (for 53-40T or 60-47T rings); a cover cap replaces it on 1x builds |
| Cable routing | Internal derailleur and brake housing | Fully internal |
| Hydration & storage | ||
| Integrated hydration | No | 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 | No |
| Bottle mount locations | Down tube | Down tube, with two cage positions: a higher one for training access and a lower one for racing |
| Fit & adjustability | ||
| Aerobar system | Giant AeroDrive base bar with integrated stem, Sync armrest set and 10 and 15-degree extension wedges | Forza TTT integrated basebar (110 mm stem, 400 mm c-c) supplied with the frameset; the stem drops into the head tube |
| 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) | Forza Aero seatpost (350 mm) |
| Saddle position range | Four seatpost offset positions spanning 51 mm | — |
| Aerodynamics | ||
| Testing method | CFD plus wind-tunnel testing with a dynamic mannequin with articulating legs | CFD simulations optimised for about 55 km/h, then validated in the Bike Valley wind tunnel |
| Tube profile | Truncated ellipse tubing (AeroSystem Shaping) | F-Tubing (truncated NACA profiles) with F-Surface Plus grooves on frame and fork; uses the UCI 8:1 tube ratio and compensation triangles |
| Travel, maintenance & warranty | ||
| Derailleur hanger | — | UDH (SRAM Universal Derailleur Hanger); the front derailleur hanger is removable and can be swapped for a cover on 1x builds |
| Proprietary parts | — | Forza TTT integrated basebar/stem, Forza Aero seatpost, removable front-derailleur hanger and cover |
| Frame warranty | Lifetime limited warranty on the frame and ten years on the rigid fork, original owner only (US) | Lifetime warranty after registration (Ridley) |
| Sold via | Giant online store with assembly and pickup through authorized Giant retailers, and in-store | Ridley dealers and online ordering with pick-up at a dealer |
| Cockpit | ||
| Basebar | Giant AeroDrive base bar | Ridley Forza TTT integrated basebar |
| Basebar width | — | 400 mm |
| Weight | — | 341 g12 oz |
| Notes | — | Integrated 110 mm stem |
| Arm pads / cups | Giant Sync armrest set | — |
| Stem | Giant AeroDrive integrated stem | — |
| Saddle & seatpost | ||
| Seatpost | Giant Trinity Composite | Ridley Forza Aero |
| Notes | — | 350 mm length |
| Geometry (smallest – largest size) | ||
| Sizes | XS, S, M, L | S, M, L |
| Rider height min | 159–181 cm5′3″–5′11″ | — |
| Rider height max | 169–191 cm5′7″–6′3″ | — |
| Stack | 490–551 mm19.3–21.7″ | 495–518 mm19.5–20.4″ |
| Reach | 397–452 mm15.6–17.8″ | 373–411 mm14.7–16.2″ |
| 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° | 74.5° |
| Seat angle max | 77° | 74.5° |
| Head tube angle | 72–73° | 71.5–72° |
| Head tube length | 85–145 mm3.3–5.7″ | 90–110 mm3.5–4.3″ |
| Effective top tube | 510–579 mm20.1–22.8″ | 510–555 mm20.1–21.9″ |
| Seat tube length | 477–565 mm18.8–22.2″ | 500–540 mm19.7–21.3″ |
| Chainstay | 405 mm15.9″ | 405 mm15.9″ |
| Wheelbase | 974–1,039 mm38.3–40.9″ | 964–1,001 mm38–39.4″ |
| BB drop | 70 mm2.8″ | 75 mm3″ |
| Fork offset | 40 mm1.6″ | — |
| Trail | 63–69 mm2.5–2.7″ | — |
| Standover | 758–838 mm29.8–33″ | 763–786 mm30–30.9″ |
| Wheel size | 700c | 700c |
| Crank length | 160–172.5 mm6.3–6.8″ | — |
| Stem length | — | 110 mm4.3″ |
| Basebar width | 400 mm15.7″ | 400 mm15.7″ |
Geometry overlay
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Drawn to scale (how to read it).