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2026 Forestal

e-Cygnus Diode

A 29″ carbon frame full suspension trail e-bike with ultra high-end components.
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Manufacturer Price

€9,350($10,879)
FrameCarbon
SuspensionFull, 120 / 120mm
ForkRockShox SID Ultimate
ShockRockShox SIDLuxe Ultimate
Wheels29″ Aluminum
Drivetrain1 × 12 Electronic
GroupsetX0 Eagle Transmission
MotorBosch 250W 55Nm mid-drive
BatteryBosch 400Wh
BrakesFormula Cura Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
e-Cygnus Diode
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Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Price History
Reviews
EMTB Forums
Introducing the Forestal e-Cygnus - a downcountry and XC emtb

Nov 2024 · Knut Nes

The new Forestal e-Cygnus is a slightly unusual emtb. It comes in two spec levels, Halo and Diode, both with 120 mm rear suspension. Forestal label these XC bikes, downcountry or just light short-travel trail bikes. The Bosch SX motorsystem...

Read Review

Pinkbike
First Look: Forestal's First Non-Assisted Bikes - Siryon, Cygnus & e-Cygnus

Nov 2024 · Seb Stott

The e-bike brand has unveiled its first unassisted bikes for enduro and downcountry, plus a new electric downcountry bike with a touchscreen "dashboard".

Read Review

Geometry
Specs
Build
Frame

Forestal Alpha Box Carbon Bosch SX 29" e-DC120 Monocoque construction | Bosch SX System | 120mm Travel

BB StandardBosch, Press Fit

Hanger StandardUDH

ColorAnti-Flash White

Fork

RockShox Sid Ultimate 29" 120mm Charger Race Day 2 | Tapered | Boost 15x110 | Maxle Stealth | Offset: 44mm | 3 pos. Low-Speed Compression | Gloss Black

Travel120mm

Shock

RockShox Sid Luxe Ultimate Metric 210x50 | Custom tune | Debonair | Travel: 120mm | Extl. Rebound | 2 position (Open / Firm) | Compression adjust | Black

Travel120mm

Bottom Bracket

Bosch, press-fit

Headset

Acros Integrated Integrated with Forestal Oxydon C Handlebar

Stem

Integrated with Forestal Oxydon C Handlebar Length: 60mm | 0º

Handlebar

Forestal Oxydon C 780mm Integrated Carbon fibre | Upsweep 6° | Backsweep 7° | Rise 8mm

Saddle

Fizik Terra Ridon Fibre reinforced nylon | S-alloy rails | 230g | 140mm

Seatpost

OneUp V3 ⌀ 31.6mm | Length 150-160mm size S/M | 170-180mm size L, XL

TypeDropper

Grips

Ergon GA20 Ergonomic lightweight with bar plugs | Plastic ring grey logo

Groupset
Rear Derailleur

SRAM X0 AXS T-Type 12 Speed | Direct mount | Long cage | Colour: Black

Crank

Praxis e-Crank Carbon XC/Trail Q-Factor 180mm | ISIS Drive | Length 165mm

Shifters

SRAM AXS POD Ultimate Controller 12 Speed | MMX | Colour: Black | POD interchangeable buttons

Cassette

SRAM X0 T-Type XS-1295 10-52T | 12 Speed | XD Drive Body | Colour: Black

Chain

SRAM X0 Eagle T-Type 12 Speed | Powerlock | Colour: Black | T-Type Flattop

Brakes

Formula Cura 2

TypeFormula Cura Hydraulic Disc

Wheels
Rims

Front: DT Swiss XM 1700 Alloy 29" 15x110 Boost | 350 hub | 6 bolt | Inner width 30mm, Rear: 15x110 Boost | 350 hub | 6 bolt | Inner width 30mm 12x148 Boost | 350 hub | 6 bolt | SRAM XD | Ratchet 36 SL | Inner width 30mm

Tires

Front: Maxxis Minion DHF 2.35 Tubeless Ready | Triple Compound | Puncture resistant wall | 29x2.35, Rear: Maxxis High Roller II 2.35 Tubeless Ready | Triple Compound | Puncture resistant wall | 29x2.35

Electric Components
Motor

Bosch SX Performance Line Wide | 250W | 55Nm | IP67 | 1.95Kg

Battery

Bosch Compact PowerTube 400wh Range Extender Compatible: Bosch PowerMore 250wh | 180° Reversed cable

Remote

Bosch Mini Remote Mini Remote & System Controller

Display

Forestal Dashbaord Elite V2 3,99" Display | GPS | GSM Connectivity | Fully Integrated

Rider Notes
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First added April 11

Last updated May 30