RadonVaillant
Radon's fastest road bike, which the brand itself calls an all-rounder: a light carbon frame with aero-shaped tubes, a one-piece carbon bar and stem with internal routing, a frame-matched carbon seatpost and NEWMEN wheels. The current frame arrived in spring 2024 with reshaped down tube and seat tube and the integrated cockpit. Sold online through Bike-Discount with electronic Shimano and SRAM builds.
- From
- €4,499€4,499€4,499
- Builds
- 3
- Sizes
- 5
- Frame weight
- —
Design sketch, generated from the manufacturer's photo
Our verdict
Overall
out of 100, average of 7 categories
A lot of race bike for the money, sold direct: aero-shaped carbon frame, one-piece cockpit, electronic shifting on every build and carbon wheels. Radon publishes no aero figures, frame weight or tyre clearance, cockpit sizes aren't listed, and TOUR measured it slower and heavier than premium rivals.
Scored Oct 2026
- + Affordable way in
- + Light
AI-drafted from the specs on this page and reviewed before publishing. Scores are relative to every bike in the catalog when they were given, so they drop as newer bikes and parts raise the bar.
- Aero
- 72/100
- Frame
- 70/100
- Components
- 74/100
- Fit
- 68/100
- Practicality
- 66/100
- Price
- 99/100
- Weight
- 91/100
Aero claims and front-end integration
Carbon grade, weight and warranty
Groupset, wheels and power meter
Sizes and adjustment range
Travel, standard parts, servicing
From the cheapest complete-bike MSRP
From the lightest claimed weight (7.25 kg, size XS)
Bike duel
Reviews
3 independent reviews of the Radon Vaillant.
- WrittenJulian SchultzTested: 10.0 (2024)2.6
- WrittenChristian BrunkerTested: 9.0 (2024)In German
- WrittenJulian SchultzTested: 8.0 (2024)
Frame & platform
Frame & fork
- Frame material
- Carbon (UD carbon visible under the paint on the 9.0 and 10.0)
- Fork material
- Full carbon
- Max system weight
- 115 kg253.5 lb
- Frame sizes
- XS, S, M, L, XL
- Colours
- Liquid Red / deep black (10.0), UD carbon / deep black (9.0), Quick / deep black (8.0)
Compatibility & standards
- Brake type
- Hydraulic disc, flat mount
- Wheel size
- 700c
- Bottom bracket standard
- Press-fit (Shimano SM-BB71-41B or SRAM DUB Road Pressfit as fitted)
- Front axle
- 100 mm hub spacing
- Rear axle
- 142 mm hub spacing
- Front derailleur mount
- Braze-on
- Cable routing
- Internal, through the one-piece cockpit
Fit & adjustability
- Cockpit
- One-piece carbon bar and stem with internal cable routing (Radon 'Vaillant Aero Carbon')
- Seatpost type
- Radon Vaillant carbon seatpost shaped to the frame, 350 mm
Travel, maintenance & warranty
- Headset bearings
- IS52/IS52
- Frame warranty
- 5-year crash replacement on carbon frames from the date of purchase (original owner, in addition to the statutory warranty)
- Sold via
- Direct online through Bike-Discount, delivered locally with Radon service partners
Photos
Design sketches
Builds & components
Highlighted rows differ between builds. Green marks the best value.
Vaillant 10.0 | Vaillant 9.0 | Vaillant 8.0 | |
|---|---|---|---|
| Overview | |||
| Price (MSRP) | €4,499€4,499€4,499 | €3,999€3,999€3,999 | €3,199€3,199€3,199 |
| Weight | 7.25 kg16 lb | 7.3 kg16.1 lb | 7.8 kg17.2 lb |
| Weight measured on size | XS | XS | XS |
| Type | Complete bike | Complete bike | Complete bike |
| Notes | Liquid Red over UD carbon with deep black. Radon weighs the smallest size without pedals. On 6 Oct 2026 Radon listed it at €3,999 against the €4,499 UVP. | Matt UD carbon with deep black. Radon weighs the smallest size without pedals. On 6 Oct 2026 Radon listed it at €3,599 against the €3,999 UVP. | Quick (colour name) with deep black. Radon weighs the smallest size without pedals. On 6 Oct 2026 Radon listed it at €2,999 against the €3,199 UVP. |
| Drivetrain | |||
| Groupset | SRAM Force AXS E1 | Shimano Ultegra Di2 R8100 | Shimano 105 Di2 R7100 |
| Launched | 2025 · current generation | 2021 · current generation | 2022 · current generation |
| Speeds | 12-speed | 12-speed | 12-speed |
| Electronic | Yes | Yes | Yes |
| Wireless | Yes | — | — |
| Drivetrain | 2x | 2x | 2x |
| Shifters | SRAM Force AXS E1 | Shimano Ultegra Di2 ST-R8170 | Shimano 105 Di2 ST-R7170 |
| Notes | Combined shift and hydraulic brake levers | Combined shift and hydraulic brake levers | Combined shift and hydraulic brake levers |
| Crankset | SRAM Force AXS E1 Power Meter | Shimano Ultegra R8100 | Shimano 105 R7100 |
| Chainrings | 50/37 | 52/36 | 52/36 |
| Spindle | DUB | — | — |
| Material | Carbon | — | — |
| Power meter | SRAM Force AXS E1 Power Meter | — | — |
| Launched | 2025 · current generation | — | — |
| Type | Spider | — | — |
| Bottom bracket | SRAM DUB Pressfit | Shimano SM-BB71-41B | Shimano SM-BB71-41B |
| Standard | Press-fit road | Press-fit road | Press-fit road |
| Front derailleur | SRAM Force AXS E1 | Shimano Ultegra Di2 R8150 | Shimano 105 Di2 R7150 |
| Rear derailleur | SRAM Force AXS E1 | Shimano Ultegra Di2 R8150 | Shimano 105 Di2 R7150 |
| Cassette | SRAM Force XG-1270 | Shimano Ultegra R8101 | Shimano CS-HG710 |
| Range | 10-36 | 11-34 | 11-36 |
| Speeds | 12-speed | 12-speed | 12-speed |
| Chain | SRAM Force E1 | Shimano CN-M8100 | Shimano CN-M7100 |
| Brakes | |||
| Brake calipers | SRAM Force AXS E1 | Shimano Ultegra BR-R8170 | Shimano 105 BR-R7170 |
| Type | Hydraulic disc, flat mount | Hydraulic disc, flat mount | Hydraulic disc, flat mount |
| Rotors | SRAM Paceline | Shimano RT-CL800 | Shimano SM-RT64 |
| Front rotor | 160 mm | 160 mm | 160 mm |
| Rear rotor | 160 mm | 160 mm | 160 mm |
| Mount | Center Lock | Center Lock | Center Lock |
| Wheels & tires | |||
| Wheelset | Newmen Streem A.49/A.54 | Newmen Streem A.49/A.54 | Newmen Advanced A.50 |
| Internal rim width | 24 mm | 24 mm | 23 mm |
| Material | Carbon | Carbon | — |
| Notes | 1,440 g per set, as stated by Radon; 100/142 mm hubs | 1,440 g per set, as stated by Radon; 100/142 mm hubs | 100/142 mm hubs |
| Tires | Continental Grand Prix 5000 S TR | Continental Grand Prix 5000 S TR | Continental Grand Prix 5000 S TR |
| Tire width | 28 mm | 28 mm | 28 mm |
| Cockpit | |||
| Handlebar | Radon Vaillant Aero Carbon | Radon Vaillant Aero Carbon | Radon Vaillant Aero Carbon |
| Type | One-piece bar and stem | One-piece bar and stem | One-piece bar and stem |
| Integrated stem | Yes | Yes | Yes |
| Cable routing | Internal | Internal | Internal |
| Material | Carbon | Carbon | Carbon |
| Headset | IS52/IS52 | IS52/IS52 | IS52/IS52 |
| Saddle & seatpost | |||
| Saddle | Selle Italia SLR Boost Kit Carbonio Superflow | Selle Italia SLR Boost TM Superflow | Selle Italia Model X Superflow |
| Rails | Carbon | — | — |
| Seatpost | Radon Vaillant Carbon Seatpost | Radon Vaillant Carbon Seatpost | Radon Vaillant Carbon Seatpost |
| Material | Carbon | Carbon | Carbon |
| Notes | 350 mm, shaped to the frame | 350 mm, shaped to the frame | 350 mm, shaped to the frame |
| Bar tape | ACID RC 2.5 CMPT | ACID RC 2.5 CMPT | ACID RC 2.5 CMPT |
| Included extras | |||
| Pedals | None included | None included | None included |
Real-world weight
Scale weights of the Vaillant from reviewers, next to Radon's claim.
Ownership checklist
0 of 2 known checks pass, 2 not published by Radon. Why these checks
- ✕
Threaded bottom bracket
Press-fit (Shimano SM-BB71-41B or SRAM DUB Road Pressfit as fitted)
- ?
UDH derailleur hanger
- ✕
Standard 12×142 mm rear axle
142 mm hub spacing
- ?
Works with mechanical shifting
Vaillant geometry
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| Stack | 517 mm20.4″ | 540 mm21.3″ | 557 mm21.9″ | 577 mm22.7″ | 599 mm23.6″ |
| Reach | 374 mm14.7″ | 380 mm15″ | 388 mm15.3″ | 396 mm15.6″ | 404 mm15.9″ |
| Seat tube angle | 74.8° | 74.8° | 73.8° | 73.3° | 72.8° |
| Head tube angle | 72° | 72.3° | 72.8° | 73° | 73.3° |
| Head tube length | 107 mm4.2″ | 130 mm5.1″ | 148 mm5.8″ | 168 mm6.6″ | 190 mm7.5″ |
| Effective top tube | 515 mm20.3″ | 532 mm20.9″ | 550 mm21.7″ | 570 mm22.4″ | 590 mm23.2″ |
| Seat tube length | 470 mm18.5″ | 500 mm19.7″ | 530 mm20.9″ | 560 mm22″ | 590 mm23.2″ |
| Chainstay | 415 mm16.3″ | 415 mm16.3″ | 415 mm16.3″ | 415 mm16.3″ | 415 mm16.3″ |
| Wheelbase | 976 mm38.4″ | 986 mm38.8″ | 996 mm39.2″ | 1,008 mm39.7″ | 1,020 mm40.2″ |
| BB drop | 70 mm2.8″ | 70 mm2.8″ | 68 mm2.7″ | 68 mm2.7″ | 68 mm2.7″ |
| Wheel size | 700c | 700c | 700c | 700c | 700c |
Side view
Drawn to scale (how to read it).
How the geometry rides
The Vaillant in size M against the middle size of 65 other bikes: tendencies from geometry, not a ride review (how to read this).
- Wheelbase996 mm39.2″
shortestlonger than 94% of 65 bikeslongest
Long wheelbase: tends to track straight and feel calm at speed.
- Chainstay415 mm16.3″
shortestlonger than 99% of 73 bikeslongest
Long chainstays: adds stability and room for a rear wheel with wide tyres.
Good to know
Aerodynamics
In TOUR's wind tunnel the 2024 Vaillant 10.0 needed 226 W at 45 km/h, with an overall grade of 2.6.
SourceFit
Geometry is read from Radon's size-by-size drawings on the product pages; Radon publishes no fork offset, trail or rider height ranges as numbers (its size chart is a graphic).
SourceCompatibility
TOUR reported a maximum tyre size of 30 mm at launch.
SourceHistory
Launched in March 2024. Compared with the previous Vaillant, the down tube and seat tube were reshaped and a fully integrated one-piece carbon cockpit replaced the clamped bar with external cables; all builds moved to 28 mm tyres.
Source
Vaillant FAQ
How much does the Radon Vaillant cost?+
Manufacturer prices (MSRP): €3,199–€4,499 across 3 listed builds and framesets: Vaillant 10.0, Vaillant 9.0 and Vaillant 8.0.
How much does the Radon Vaillant weigh?+
The lightest complete build listed (Vaillant 10.0) weighs 7.25 kg (16 lb) in size XS.
What sizes does the Radon Vaillant come in?+
5 sizes: XS, S, M, L and XL.
Which groupsets are compatible with the Radon Vaillant?+
Bottom bracket: Press-fit (Shimano SM-BB71-41B or SRAM DUB Road Pressfit as fitted).
What builds of the Radon Vaillant are available?+
Vaillant 10.0: SRAM Force AXS E1; Vaillant 9.0: Shimano Ultegra Di2 R8100; Vaillant 8.0: Shimano 105 Di2 R7100.
What warranty does the Radon Vaillant frame have?+
5-year crash replacement on carbon frames from the date of purchase (original owner, in addition to the statutory warranty)
Sources
- https://www.radon-bikes.de/roadbike/carbon/vaillant/vaillant-10-0-2026/
- https://www.radon-bikes.de/roadbike/carbon/vaillant/vaillant-9-0-2026/
- https://www.radon-bikes.de/roadbike/carbon/vaillant/vaillant-8-0-2026/
- https://www.radon-bikes.de/roadbike/carbon/vaillant/
- https://www.radon-bikes.de/roadbike/carbon/
- https://www.radon-bikes.de/en/service/crash-replacement/
- https://a.storyblok.com/f/167185/3508x2717/cc6d62df09/bikesize_rennrad_vaillant_black.jpg
- https://www.tour-magazin.de/en/aero-road-bike/new-radon-vaillant-racing-machine-with-an-attractive-price/
- https://www.tour-magazin.de/en/aero-road-bike/radon-vaillant-10-0-favourable-all-rounder-in-a-single-test/
- https://www.bike-x.de/rennrad/tests/radon-vaillant-9-0-im-test/
Radon Vaillant data last updated · How the data is checked ·