Technology. engineered to win.

* built for pure racing, powered by precision.
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At Whistle, carbon is not just a material — it’s a mindset.
Our frames are sculpted from aerospace-grade Toray carbon using a monocoque process that removes weakness and maximizes flow. The result? Total control under pressure.
Uncompromised Carbon Performance
Monocoque Carbon
Smart Power
Sensor Precision
Race Geometry
Aerospace Fibers
Monocoque Carbon
Smart Power
Sensor Precision
Race Geometry
Aerospace Fibers
Flow Control
Light. Strong. Fast.
Tested to Win
Engineered Motion
Unmatched Responsiveness
Flow Control
Light. Strong. Fast.
Tested to Win
Engineered Motion
Unmatched Responsiveness
Our monocoque carbon structure is molded as a single piece, eliminating welds and junctions. This guarantees perfect fiber orientation and stress dispersion, giving you unmatched precision at high speed and over technical terrain.
One Seam. Infinite Strength.
Only the best: Toray’s T800 and T1000 carbon are trusted in aerospace and F1. T800 offers elite stiffness-to-weight balance. T1000 delivers high-tension resistance for aggressive, responsive riding without compromise.
Aerospace Fibers. Trail-Tuned.
Every frame is crafted with precision engineering and meticulous attention to detail. From CAD design to final assembly, we follow a rigorous development process focused on structural integrity, ride feel, and long-term reliability.Performance is not an afterthought — it’s embedded from the start.
Aerospace-Inspired Design. Trail-Tuned Dynamics.

Engineered for range, tuned for control.

Whistle e-bikes integrate cutting-edge drive units from Bosch Performance Line CX, Bosch Race, DJI Avinox, and OLI Edge. Every motor is selected and tuned for real-world racing, long-range exploration, and seamless torque precision — ensuring performance, control, and efficiency across every terrain.

Aviation-Grade intelligence, trail-ready power

The Avinox M1 system by DJI is a next-generation e-bike drive unit that combines exceptional torque (120 Nm) with a lightweight build (2.52 kg), delivering smooth, powerful assistance on even the steepest climbs. Its 800 Wh battery ensures long-range performance in a slim, compact format, while the 12A fast charger brings it from 0 to 75% in just 1.5 hours. The high-resolution touch display offers intuitive control with Bluetooth connectivity, and the dedicated mobile app gives real-time insights, ride modes, and firmware updates. Silent, compact, and built for precision — Avinox redefines what an e-bike motor can do.

Pure control and reliable power

The CX motor is Bosch’s benchmark for dynamic e-MTB performance. Delivering up to 100 Nm of torque and 750W of peak power, it transforms every pedal stroke into forward momentum with responsive, silent assistance. With 400% max support, it adapts naturally to rider input for a seamless trail experience — whether on tight switchbacks, technical climbs, or all-day adventures. Compatible with Bosch’s intelligent system, it supports modular add-ons like the Powertube 800, Purion 200 display, ConnectModule and the Flow App for a fully connected ride.

Legendary Bosch precision, now in race mode

Developed with pro riders and engineered for competitive enduro use, the CX Race motor is Bosch’s most aggressive performance drive unit. With a featherweight build of just 2.7 kg, it delivers up to 100 Nm of torque and 750W peak power for explosive acceleration and race-winning support. Designed for full-throttle power transfer with maximum efficiency and minimal drag, it’s ideal for tackling steep climbs, rock gardens, and split-second trail decisions. Silent, compact, and ultrafast — it’s made for riders who push every limit.

Smart efficiency, natural off-road power

The OLI Edge motor delivers up to 90 Nm of torque in an ultra-compact body weighing just 3 kg, offering smooth, responsive support in off-road conditions or daily urban use. Paired with a fully integrated 840 Wh real-capacity battery developed with Phylion, it meets the latest European EN 50604-1 safety standards and uses high-density 21700 cells for extended range.Equipped with vectorial logic electronics and a 4-sensor torque system, it ensures precise pedal assistance and natural riding feel. The 2” HIGH Vision display, Gorilla Glass® protected and IP68-certified, provides smart ride info, auto light control, dark mode, and seamless Bluetooth connectivity. The OLI system is refined, reactive, and ready for every terrain.

Geometry that wins

Whistle’s advanced frame geometry ensures optimal performance, precise handling, and superior comfort. Every measurement is meticulously calculated, enabling riders to maximize their potential whether on roads, gravel paths, or challenging mountain trails.
Our detailed geometry charts provide you with exact measurements and parameters crucial to performance. Understand how every angle and dimension contributes directly to speed, agility, and endurance.
DOWNLOAD FULL GEOMETRY
PDF HERE
DOWNLOAD UCI CERTIFICATE
At Whistle, we don’t just build bikes — we engineer trust. Every frame we produce is the result of rigorous testing, UCI-level certification, and a relentless commitment to precision. Designed for riders who demand excellence, validated in the lab and proven on the road.
Engineering confidence

Quality & Testing

Vertical fatigue test

FIND FULL TEST HERE
We apply repetitive vertical loads to mimic countless impacts from road imperfections and jumps, ensuring the frame's long-term integrity and shock absorption.
TÜV & ISO Certified
TÜV & ISO Certified
TÜV & ISO Certified
TÜV & ISO Certified
TÜV & ISO Certified
TÜV & ISO Certified
TÜV & ISO Certified
TÜV & ISO Certified
TÜV & ISO Certified
TÜV & ISO Certified
TÜV & ISO Certified
TÜV & ISO Certified

Horizontal Fatigue Test

FIND FULL TEST HERE
This crucial test simulates sustained side-to-side forces, mirroring intense pedaling and cornering stresses to assess frame and component resilience over time.
UCI Race-Approved Frames
UCI Race-Approved Frames
UCI Race-Approved Frames
UCI Race-Approved Frames
UCI Race-Approved Frames
UCI Race-Approved Frames
UCI Race-Approved Frames

Impact Test (falling frame)

FIND FULL TEST HERE
The complete bicycle is subjected to controlled drops from various heights and angles, rigorously assessing the entire frame's structural resilience against real-world crash scenarios.
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test

Impact Test (falling mass)

FIND FULL TEST HERE
A calibrated mass is dropped onto specific frame points, simulating direct, concentrated impacts to verify the material's ability to absorb and withstand sudden, significant forces.
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test

Jump Fatigue test

FIND FULL TEST HERE
We subject the bike to repeated high-impact vertical forces, replicating demanding jumps and landings to ensure frame and component integrity under extreme dynamic loads.
Fork & Head Tube Rigidity
Fork & Head Tube Rigidity
Fork & Head Tube Rigidity
Fork & Head Tube Rigidity
Fork & Head Tube Rigidity
Fork & Head Tube Rigidity
Fork & Head Tube Rigidity
Fork & Head Tube Rigidity
Fork & Head Tube Rigidity
Fork & Head Tube Rigidity
Fork & Head Tube Rigidity
Fork & Head Tube Rigidity

Pedaling fatigue test

FIND FULL TEST HERE
This test rigorously simulates countless pedaling cycles under varying loads, assessing the drivetrain and frame's endurance against repetitive stress and power output.
Transmission Power Tested
Transmission Power Tested
Transmission Power Tested
Transmission Power Tested
Transmission Power Tested
Transmission Power Tested
Transmission Power Tested
Transmission Power Tested
Transmission Power Tested
Transmission Power Tested
Transmission Power Tested
Transmission Power Tested

Fork & Head Tube Rigidity

FIND FULL TEST HERE
Precise measurements are taken to evaluate the fork and head tube's resistance to flex and twist, critical for steering precision and confident handling during aggressive riding.
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test
Lateral Stiffness Test

Disc-brake torque fatigue test

FIND FULL TEST HERE
This specialized test applies continuous, high-torque forces to the disc brake system, ensuring its long-term reliability and fade resistance under sustained braking demands.
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
Twist Stiffness Test
High-Quality
Guaranteed
Always
High-Quality
Guaranteed
Always
High-Quality
Guaranteed
Always
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