Frame suspension
with special kinematics for gravel
Homogeneous, cohesive
design of the fork and frame
Integrated suspension
and fork system with a lockout
Hardness and SAG adjustment
for any weight
PS
PATHSEEKER
PATHSEEKER
A suspended gravel bike, where we have designed the suspension not as a mere copy of MTB solutions, but to meet the specific demands of its segment. Without hydraulics or complex systems, our solution offers the right amount of antisquat and reliable damping at an optimal travel range. The fork also takes on part of the work, ensuring smooth traction without unnecessarily absorbing pedaling energy. When designing the frame, we developed a composite using four materials: carbon fiber, flax fiber, basalt fiber, and bio-based resin, creating a truly ecological solution—one that works and offers unique advantages. By properly layering these materials and leveraging the characteristics of natural fibers, we have eliminated a significant amount of vibration, which traditional suspension cannot fully absorb.
PATHSEEKER represents a new dimension of material synergy. It’s dynamics without loss of comfort. Efficiency with the potential for fun. Sustainability that works and outperforms traditional solutions, shaping the future. This is a bike where you have everything you need and nothing you don’t. Just the right amount, taken from all the bikes in the world. And if you ever have to choose which bike to take to a deserted island, we’ll be confident in our recommendation: Antidote will open new, undiscovered trails for you.
DESIGN HIGHLIGHTS
„bar to frame” - clean look
internal cable routing
Integrated front supension
Low and slack frame
Carbon/vectran composite
Nano Flex™ suspension
UDH/T-TYPE ready
Ti and aereospace alloy bolts
Flexible chainstay
50C tire clearance
Painting Configurator
Handcrafted in Poland
Lifetime Warranty
NANO FLEX
NanoFlex is a proprietary suspension system designed by Antidote. There are several rear wheel suspension solutions for gravel bikes on the market, but our system stands out significantly. The key feature of this concept is the direct transfer of MTB suspension principles, meaning it has four pivot points and full lateral stiffness. Two of these points are virtually fixed—traditional pivot axles have been replaced with the flexibility of the chainstay tubes. The remaining pivots function through an eccentric mechanism placed in the front triangle, acting similarly to a cam pushing the shock absorber. The system integrated into the frame allows the components to rotate relative to each other, with the entire structure stabilized by an elastomer. The elastomer controls suspension travel and vibration damping. It is replaceable, enabling a full range of stiffness adjustments.
The suspension fork, on the other hand, is an integrated system combined with a carbon fork. It operates using either a spring or an interchangeable elastomer. A convenient lockout mechanism is located in the steerer cap. In the event of fork damage, the suspension-fork system can be separated for replacement or repair.
Nanoflex was created based on the individual needs of the gravel segment. It is not just a comfort buffer, as is the case with many such solutions, but has the features of a real system that would meet the requirements of mtb:
- the suspension reacts to any type of bump – from small to the biggest impacts
- the suspension works at any speed pedaling has no effect on the suspension
- braking has no effect on the suspension
- the rear triangle of the frame is rigid, does not move sideways
- the suspension system is laterally rigid
- all construction parts are easily serviceable (replaceable)
- there is a progressive characteristic – the suspension hardens with increasing deflection, which prevents hard bottoming out
- construction of suspension system is pretty light
- the design is as simple as possible, while maintaining high kinematic parameters.
- mm
- inch
| Parametr | S | M | L | XL |
| Handlebar (mm) | 420 | 440 | 440 | 460 |
| Stem (mm) | 70 | 80 | 90 | 100–105 |
| Crank length (mm) | 170 | 175 | 175 | 175 |
| Frame size | S | M | L | XL |
| FS – frame size (mm) | 47 | 50 | 53 | 56 |
| Seat tube length (mm) | 470 | 500 | 530 | 560 |
| Horizontal top tube length (mm) | 534 | 555 | 575 | 595 |
| Head tube (mm) | 105 | 130 | 155 | 180 |
| SA – Seat tube angle (°) | 72,75 | 72,75 | 72,75 | 73 |
| HA – Head tube angle (°) | 69,5 | 71 | 72 | 72,5 |
| CS – Chainstay length (mm) | 420 | 420 | 420 | 420 |
| WB – Wheel base (mm) | 1008 | 1017 | 1027 | 1045,3 |
| Reach (mm) | 372 | 383,9 | 395,3 | 410,2 |
| Stack (mm) | 521,8 | 551 | 580 | 604 |
| BB Drop (mm) | 70 | 70 | 70 | 70 |
| Fork (mm) | 395 | 395 | 395 | 395 |
| Fork offset (mm) | 50 | 50 | 50 | 50 |
| Parametr | S | M | L | XL |
| Handlebar (inch) | 16.5 | 17.3 | 17.3 | 18.1 |
| Stem (inch) | 2.8 | 3.1 | 3.5 | 3.9–4.1 |
| Crank length (inch) | 6.7 | 6.9 | 6.9 | 6.9 |
| Frame size | S | M | L | XL |
| FS – frame size (inch) | 18.5 | 19.7 | 20.9 | 22.0 |
| Seat tube length (inch) | 18.5 | 19.7 | 20.9 | 22.0 |
| Horizontal top tube length (inch) | 21.0 | 21.9 | 22.6 | 23.4 |
| Head tube (inch) | 4.1 | 5.1 | 6.1 | 7.1 |
| SA – Seat tube angle (°) | 72.75 | 72.75 | 72.75 | 73 |
| HA – Head tube angle (°) | 69.5 | 71 | 72 | 72.5 |
| CS – Chainstay length (inch) | 16.5 | 16.5 | 16.5 | 16.5 |
| WB – Wheel base (inch) | 39.7 | 40.0 | 40.4 | 41.2 |
| Reach (inch) | 14.6 | 15.1 | 15.6 | 16.1 |
| Stack (inch) | 20.5 | 21.7 | 22.8 | 23.8 |
| BB Drop (inch) | 2.8 | 2.8 | 2.8 | 2.8 |
| Fork (inch) | 15.6 | 15.6 | 15.6 | 15.6 |
| Fork offset (inch) | 2.0 | 2.0 | 2.0 | 2.0 |
GEOMETRY
TECH DETAILS
- NanoFlex Suspension System
- 28” wheels
- Suspension and kinematics designed for gravel bikes
- Integrated suspension system with fork and frame travel lockout and full hardness adjustment
- Maintenance-free construction
- Vectran reinforcements
- Aerospace-grade aluminum bolts
- “Flat” frame with a low standover height
- Internal cable routing
- Entirely manufactured in Poland
- Custom, hand-crafted graphics
- Lifetime warranty
TECH DETAILS
- SIZE: 28’’
- SUSPENSION TRAVEL: 20mm (frame – FS) and fork
- TIRE CLEARANCE: 50C
- SEATPOST SIZE: 27.2mm
- HUB SIZE: 12x142mm
- BOTTOM BRACKET: BB T47 / 85.5mm DUB (29.5mm) or 30mm
- CHAINLINE: 49mm (compatible with SRAM and Shimano cranksets)
- FRONT CHAINRING: Max 42T, recommended 40T
- HEADSET: INTEGRATED 1.5’’ – 1.5” FORK STEERER
- TUBE: 1 1/4” – 1.5”
- MATERIAL: Monocoque Carbon & Vectran Composite
- BOLTS: Ti & Aerospace aluminum alloys
- INTEGRATED SEAT CLAMP
- BRAKE ADAPTERS: FS FRAME: DIRECT MOUNT TO POST MOUNT CUSTOM / HT: DIRECT MOUNT 160mm FORK: POST MOUNT 160mm or 180mm
COMPLETE BIKES SPECIFICATION
| SET | Pathseeker HT _ suspension fork/APEX AXS / I9 ROAD GRCX |
| Colour | STANDARD |
| FULL SPECIFICATION | |
| Frame | Antidote Patchseeker HT frame |
| Fork | Antidote Suspension gravel fork 20mm travel |
| Wheels | Industry Nine 1/1 ROAD GRCX |
| Deraileur | SRAM AM RD APEX XPLR AXS D1 MAX 44T |
| Shifter | SRAM AM ED APEX AXS D1 SJC |
| Casette | SRAM AM CS PG 1231 D1 XPLR 11-44 |
| Chain | SRAM AM CN APEX D1 |
| Crankset/Chainring | SRAM AM FC APEX 1 D1 DUB WIDE 175 DM 40 AL. |
| Bottom Bracket | SRAM DUB |
| Brakes | SRAM AM ED APEX AXS D1 SJC |
| Rotors | SRAM ROTOR CNTRLN CL 160MM BLACK ROUNDED |
| Seatpost | ZIPP AM SP SC 0 OFFSET 27.2 350mm |
| Handlebar | FSA A-WING PRO Road HB SB Black 31.8X460mm |
| Stem | FSA NS SMR STEM 80mm ST-OS-188/SMR-0 rise 1-1/4 steering |
| Tires | WTB Riddler TCS 45×700 black |
| Saddle | WTB Gravelier CrMo 248x142mm |
| Headset | FSA no.55r 1-1/4″/acr-fsa |
| Grips | ZIPP 12A BAR TAPE SERVICE COURSE BLACK |
| AXS battery | SRAM AM ETAP BATTERY QTY1 |
| Charger | SRAM AM ETAP BATTERY CHARGER AND CORD |
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Delivery time: about 8 weeks from paid order.