Forestal e-Cygnus Diode

Name: Forestal e-Cygnus Diode
Brand: Forestal

2025 MountainTrail Electric bicycle Manufacturer page

Forestal e-Cygnus Diode, color Anti-Flash White

Price: Not published

Prices shown first for United States
Europe: €9,350 Last known price
Travel: 120 / 120 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 10–52t
Gear range: 520%
Battery: 400 Wh
Frame: Carbon
Brakes: Hydraulic disc

Sizes

Size guide

SM/MD
LG
XL

The manufacturer did not publish rider heights for these sizes.

Components

21 of 22 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Forestal Alpha Box Carbon Bosch SX 29" e-DC120 Monocoque construction | Bosch SX System | 120mm Travel Not identified

Electric system

3 parts

Suspension

3 parts

Drivetrain

6 parts

Brakes

1 part

Brakes
- Formula

Wheels and tires

2 parts

Cockpit and contact points

6 parts

Sizes and geometry

3 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size LG

Table

Reach 470mm

Stack 611mm

Wheelbase 1197mm

Head angle 67.0°

Seat angle 76.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	445	470	495
Stackmm	602	611	625
Top tube lengthmm	595	620	650
Seat tube lengthmm	415	455	500
Head tube lengthmm	100	110	125
Head tube angle	67°	67°	67°
Seat tube angle	76°	76°	75.5°
Chainstay lengthmm	448	448	448
Wheelbasemm	1168	1197	1241
Front centermm	722	751	795
Bottom bracket dropmm	36	36	36
Bottom bracket heightmm	334	334	334
Fork rakemm	44	44	44
Trailmm	123	123	109
Stack/reach ratio	1.35	1.30	1.26

Not published by the manufacturer: Standover height, Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon

Suspension

Suspension configuration: Full suspension
Front travel: 120 mm
Rear travel: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 52

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Derailleur hanger: UDH
Seatpost: Dropper seatpost
Shifting: Electronic

Electric system

Battery capacity: 400 Wh

Additional specifications

Battery: Bosch Compact PowerTube 400wh Range Extender Compatible: Bosch PowerMore 250wh | 180° Reversed cable
Bottom bracket standard: Bosch
Tire width: 2.35″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

2 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

120 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,810 bicycles with this information
Coverage: 97.5% of the class

Shifting

Electronic

388 of 1,849 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,849 bicycles with this information
Coverage: 99.6% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2025 builds

Differences across 2025 builds
Specification	This bicycle Forestal e-Cygnus Diode	Forestal e-Cygnus Halo
Suspension
Front travel	120 mm	130 mm
Drivetrain
Smallest chainring	Not informed	34
Largest chainring	Not informed	34
Lowest gear	Not informed	19.0 in
Highest gear	Not informed	98.6 in
Cockpit
Shifting	Electronic	Mechanical
Other specifications
Fork spring	Not informed	Air