Doppler Gravel
Raised on dust. Titanium soul with carbon ambition
The perfect complement to Doppler Gravel
Our curated selection of components is built with the best possible user experience in mind, with each part selected only after rigorous testing.
Built for distance
The further you go, the more it makes sense. Doppler Gravel is an endurance road bike designed to feel as good at kilometre 200 as it did at kilometre one.
Clean from every angle
Every detail is considered — from the fully integrated cable routing to the hand-joined titanium sections. Nothing exposed. Nothing unnecessary.
Carbon that works for you
Stiff where it matters. Forgiving where it counts. Doppler Road's carbon keeps you efficient for hours without wearing you down.
Doppler Gravel runs up to 48 mm tyre
Enough to take the edge off rough roads without sacrificing the feel of a proper road bike.
Titanium that never tires
The titanium sections absorb what the road throws at you — kilometre after kilometre, without complaint.
The perfect complement to Doppler Gravel
Our curated selection of components is built with the best possible user experience in mind, with each part selected only after rigorous testing.
Built for distance
The further you go, the more it makes sense. Doppler Gravel is an endurance road bike designed to feel as good at kilometre 200 as it did at kilometre one.
Clean from every angle
Every detail is considered — from the fully integrated cable routing to the hand-joined titanium sections. Nothing exposed. Nothing unnecessary.
Carbon that works for you
Stiff where it matters. Forgiving where it counts. Doppler Road's carbon keeps you efficient for hours without wearing you down.
Doppler Gravel runs up to 48 mm tyre
Enough to take the edge off rough roads without sacrificing the feel of a proper road bike.
Titanium that never tires
The titanium sections absorb what the road throws at you — kilometre after kilometre, without complaint.
Raised on dust. Titanium soul with carbon ambition
Doppler Gravel is an endurance-focused gravel platform combining titanium and carbon. Designed for riders who prioritize comfort, stability, and long-distance performance beyond smooth roads. Titanium provides natural vibration damping and durability. Carbon delivers precise handling and efficient power transfer. Crafted in Prague using Farfalla™ robotic filament-wound carbon tubes and hand-joined titanium sections. Fully custom geometry. Built in limited numbers.
A fully custom gravel bike, built in any size
Our team will contact you to refine the geometry, finishes, and build details. Your bike will be crafted in Prague in three months.
Configure from €9,050For those who
Ride long distances on gravel and mixed surfaces Value comfort over outright race stiffness Prefer a calm, quiet ride feel Want a bike that remains stable when conditions turns rough If Spectre Gravel is about race performance, Doppler Gravel is about endurance and composure.
Why Doppler Gravel
Titanium & carbon construction Natural damping with precise control. Endurance gravel geometry Stable and comfortable for long hours off-road. Up to 48 mm tyre clearance Confidence and traction in varied terrain. Bikepacking ready Mounts for bags allow you to carry what you need for longer adventures. Fully custom, any size Bespoke geometry built around each rider. Built to last Repairable construction designed for decades of riding. Crafted in Prague Built in limited numbers under strict quality standards, with dedicated aftercare.
Configure from €9,050The Ride
Calm and composed Smooth over rough surfaces Stable on descents Predictable handling Efficient over long distances Doppler Gravel feels balanced, quiet, and enduring.
Technology & Construction
Titanium tubes Ultra High Modulus (UHM) carbon Farfalla™ robotic filament-wound tubes Hand-joined hybrid construction Fully custom geometry Repairable and refinishable frame Carbon sections are robotically wound, then hand-joined to titanium in Prague. This allows precise tuning of stiffness, compliance, and durability.
Configure from €9,0507.3–8.6 kg
Complete build weight
Titanium & carbon
Natural vibration absorption
48 mm
Tyre clearance
3 mo.
Crafted in Prague
What a custom frame gives you
Perfect fit Frame geometry built around your body proportions and flexibility. Better handling The bike behaves the way you expect — stable, predictable, and balanced. Efficient power transfer Your position allows you to put power into the pedals without fighting the bike. Real comfort Not softness. Natural position, even pressure distribution, no compensations. Long-term satisfaction A bike you won’t outgrow, replace, or need to “fix” with parts. Balanced visual proportions Correct stack and reach mean no spacers, clean silhouette, and a bike that looks as good as it rides.
Configure from €9,050Customization & Atelier
Doppler Gravel is available in full bespoke finishes. Through Festka Atelier, your frame can receive unique paintwork, surface treatments, and artist collaborations.
Explore Atelier
BOTTOM BRACKET SHELL
PF 86,5 / 41 mm
FORK
ENVE Integrated Road Disc
HEAD TUBE DIAMETER
44 mm
FRONT DERAILLEUR CLAMP
31,8 mm
SEATPOST DIAMETER
31,6 mm
SHIFTING
EPS, Di2, eTap
MAX TIRE CLEARANCE
48 mm (width as measured)
MAX SIZE OF ROTORS
140 mm rear, 160 mm front
WEIGHT
1150 g (size M, Core Raw design)
| Frame Size | XXS | XS | S | M | L | XL | XXL |
| Reach (A) | 357 | 370 | 374 | 386 | 390 | 399 | 414 |
| Stack (B) | 503 | 517 | 538 | 557 | 571 | 596 | 630 |
| Effective to tube (C) | 500 | 517 | 530 | 547 | 560 | 575 | 600 |
| Wheelbase (D) | 972 | 990 | 981 | 990 | 993 | 1005 | 1030 |
| Chainstays (E) | 406 | 406 | 410 | 410 | 410 | 410 | 410 |
| BB drop (F) | 72 | 72 | 72 | 72 | 72 | 72 | 72 |
| Seat tube angle (G) | 74,5° | 74,5° | 74° | 74° | 73,5° | 73,5° | 73,5° |
| Head tube angle (H) | 69,5° | 69,5° | 71,5° | 72,5° | 73° | 73,5° | 73,5° |
| Seat tube c-c (I) | 420 | 430 | 460 | 490 | 505 | 535 | 565 |
| Head tube lenght (J) | 102 | 116 | 128 | 145 | 158 | 182 | 217 |
| Bike standover height (K) | 723 | 734 | 759 | 783 | 797 | 824 | 855 |
| Trail (L) | 74 | 74 | 66 | 60 | 57 | 54 | 54 |
