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Dimond Radiant SL vs Ridley Noah 3.0
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
- Tire clearance: up to 32 mm on the Dimond Radiant SL vs 34 mm on the Ridley Noah 3.0.
Dimond Radiant SL
Ridley Noah 3.0
| DimondRadiant SL | RidleyNoah 3.0 | |
|---|---|---|
| Overview | ||
| Brand | Dimond | Ridley |
| Build | Radiant SL frameset | Noah 105 Di2 |
| Build notes | Frame, fork, Raven one-piece bar and stem and seatpost. Dimond also offers custom complete builds starting at $8,499 with SRAM AXS or Shimano Di2, but lists no fixed build specs for the SL. | The entry build in Ridley's NH301Bs (Pearl White/Black), NH326D2s (Petrol Blue Metallic/White) and NH327D3s (Red/Candy Red Metallic) designs, with Forza Skiron 65 carbon wheels and a separate Forza Stratos Pro bar and stem. No power meter. Crank length by size (e.g. 165 mm on XS). Paint and parts can be changed in Ridley's configurator. |
| Price (MSRP) | $5,400$5,400$5,400 | €4,699€4,699£4,299 |
| Model year | 2025 | 2026 |
| Generation | — | Noah 3.0 (third generation) |
| Discipline | Aero road | Aero road |
| UCI legal | Not stated | Yes |
| Verdict (out of 100) | ||
| Overall score | — | 78 |
| Aero | 78 | 85 |
| Frame | 86 | 76 |
| Components | — | 74 |
| Fit | 80 | 76 |
| Practicality | 74 | 70 |
| Price | — | 89 |
| Frame & fork | ||
| Frame material | Carbon | Carbon (Toray 24T and 30T, Ridley Essential Series) |
| Fork material | — | Carbon (Noah 7E8 fork; 50 mm offset on XS, 45 mm on M as listed) |
| Frame weight | 950 g33.5 oz | — |
| Fork weight | 200 g7.1 oz | — |
| Weight measured on | Frame size 54, painted (Dimond); fork weight as listed | — |
| Frame sizes | 46, 49, 52, 54, 56, 58 | XS, S, M, L |
| Colours | Standard and custom finishes | Pearl White/Black (NH301Bs), Petrol Blue Metallic/White (NH326D2s), Red/Candy Red Metallic (NH327D3s), D1179As design on the E 1800 build |
| UCI frame approval | — | Approved 26 Sep 2024 as 'NOAH 3' (frame and fork), sizes XS - L (4), code RIDLEY-034 (UCI list version 2026.10.02) |
| Compatibility & standards | ||
| Brake type | Disc | Hydraulic disc, flat mount |
| Wheel size | — | 700c |
| Max tire width | 32 mm | 34 mm |
| Bottom bracket standard | T47 threaded | — |
| Front axle | — | 12 mm thru-axle |
| Rear axle | — | 12 mm thru-axle (1.0 mm thread; Ridley code QRET124ZA046) |
| Drivetrain compatibility | — | Electronic or mechanical groupsets |
| Mechanical shifting possible | — | Yes |
| Front derailleur mount | — | Removable clamp; a cover replaces it on 1x builds, and Ridley and Wolf Tooth made a matching chain guide and chain catcher |
| Cable routing | Fully internal through the Raven bar and stem and integrated headset | — |
| Fit & adjustability | ||
| Cockpit | One-piece carbon bar and stem (Red Crown Cycling Raven), can be painted to match the frame | Either a one-piece integrated cockpit (Forza Cirrus Pro Integrated or 4ZA CIP Integrated 2.0 on stock builds) or a separate bar and stem |
| Seatpost type | — | Deda aero seatpost for Ridley (6 mm offset, 350 mm) |
| Fit notes | The Raven bar and stem is chosen at order in 380, 400, 420 or 440 mm widths with 80, 90, 100, 110 or 120 mm stems (the product page text lists 90 to 120 mm). 35 mm of spacers in 5 mm steps raise the bar above the head tube. | A conventional stem and bar can be fitted with a transition spacer (Ridley code SPAAER4ZA012) to round spacers, or with a Deda Superbox stem. Ridley uses a steeper seat angle and lower bottom bracket than before, and a lower head tube with the integrated cockpit for a lower front end. |
| Aerodynamics | ||
| Manufacturer aero claims | Dimond says the tube shapes are wind-tunnel validated and developed with CFD; it publishes no drag figures | — |
| Tube profile | — | Long, narrow profiles (UCI 8:1 ratio) in the fork and seat stays, shared with the Noah Fast |
| Travel, maintenance & warranty | ||
| Derailleur hanger | UDH (SRAM Universal Derailleur Hanger), SRAM Transmission compatible | UDH (SRAM Universal Derailleur Hanger) |
| Proprietary parts | — | Deda aero seatpost, removable front-derailleur clamp and cover |
| Frame warranty | Frameset covered against manufacturing defects for 6 years from purchase, original owner only (not transferable); hardware, paint, graphics and Dimond forks for 1 year | Lifetime warranty after registration (Ridley) |
| Sold via | Direct from Dimond | Ridley dealers, and online orders picked up at a dealer; custom builds and paint in Ridley's configurator |
| Drivetrain | ||
| Groupset | — | Shimano 105 Di2 R7100 |
| Launched | — | 2022 · current generation |
| Speeds | — | 12-speed |
| Electronic | — | Yes |
| Drivetrain | — | 2x |
| Crankset | — | Shimano 105 |
| Chainrings | — | 50/34 |
| Crank length | — | 165 mm (XS) |
| Front derailleur | — | Shimano 105 Di2 |
| Notes | — | Braze-on |
| Rear derailleur | — | Shimano 105 Di2 |
| Cassette | — | Shimano 105 |
| Range | — | 11-34 |
| Speeds | — | 12-speed |
| Wheels & tires | ||
| Wheelset | — | Forza Skiron 65 |
| Front rim depth | — | 65 mm |
| Rear rim depth | — | 65 mm |
| Internal rim width | — | 21 mm |
| Material | — | Carbon |
| Tubeless ready | — | Yes |
| Hubs | — | DT Swiss 370 |
| Freehub options | — | Shimano HG |
| Tires | — | Vittoria Zaffiro EVO V |
| Tire width | — | 30 mm |
| Type | — | Folding |
| Cockpit | ||
| Handlebar | Red Crown Cycling Raven | Forza Stratos Pro |
| Type | One-piece bar and stem | — |
| Integrated stem | Yes | — |
| Bar width | — | 380 mm |
| Widths available | 380, 400, 420 or 440 mm, with 80 to 120 mm stem (buyer's choice when ordering) | — |
| Bar reach | — | 70 mm |
| Bar drop | — | 122 mm |
| Cable routing | Fully internal, with integrated headset and spacer system | — |
| Material | Carbon | — |
| Weight | 375 g13.2 oz | — |
| Notes | — | 380 mm centre to centre at the shifters |
| Stem | — | Forza Stratos Pro |
| Stem length | — | 90 mm (XS) |
| Notes | — | Semi-integrated cable routing |
| Saddle & seatpost | ||
| Saddle | — | Selle San Marco Shortfit 2.0 |
| Seatpost | — | Deda Aero seatpost for Ridley |
| Offset / setback | — | 6 mm |
| Notes | — | 350 mm long |
| Geometry (smallest – largest size) | ||
| Sizes | — | XS, S, M, L |
| Stack | — | 532–594 mm20.9–23.4″ |
| Reach | — | 392–420 mm15.4–16.5″ |
| Seat tube angle | — | 74.5–76° |
| Head tube angle | — | 72–73.5° |
| Head tube length | — | 130–190 mm5.1–7.5″ |
| Effective top tube | — | 525–585 mm20.7–23″ |
| Seat tube length | — | 485–560 mm19.1–22″ |
| Chainstay | — | 407 mm16″ |
| Wheelbase | — | 995–1,023 mm39.2–40.3″ |
| BB drop | — | 70–72 mm2.8–2.8″ |
| Standover | — | 775–900 mm30.5–35.4″ |
| Wheel size | — | 700c |
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).