Forestal Siryon Diode PRO

2025 MountainEnduro Electric bicycle Manufacturer page

Forestal Siryon Diode PRO, color Dark Grey

Price: Not published

Prices shown first for United States
Europe: €14,899 Last known price
Travel: 170 / 170 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 32t / 10–50t
Gear range: 500%
Battery: 360 Wh
Weight: 18.3 kg 40.3 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–171
MD 168–180
LG 178–189
XL 186–199

Components

19 of 21 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 Enduro 29" TR 170 Monocoque construction/ Track Ready / 170mm Travel / 2.4kg Size M Not identified

Electric system

3 parts

Suspension

3 parts

Drivetrain

5 parts

Cassette
- SRAM XG-1299 Eagle 12 speeds 10–50t
XG-1299
Chain
- SRAM XX1
Crankset
- Praxis
Rear derailleur
- SRAM X01 Eagle AXS 12 speeds
Shifters
- SRAM

Brakes

1 part

Brakes

Braking Braking Not identified

Wheels and tires

2 parts

Cockpit and contact points

6 parts

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 458mm

Stack 612mm

Wheelbase 1238mm

Head angle 64.0°

Seat angle 77.0°

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 Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	428	458	488	508
Stackmm	612	612	625	639
Top tube lengthmm	579	609	648	673
Seat tube lengthmm	420	430	465	500
Head tube lengthmm	95	95	110	125
Head tube angle	64°	64°	64°	64°
Seat tube angle	77°	77°	77°	77°
Chainstay lengthmm	436	436	446	446
Wheelbasemm	1208	1238	1284	1311
Front centermm	773	803	839	866
Bottom bracket dropmm	25	25	25	25
Bottom bracket heightmm	353	353	353	353
Fork rakemm	51	51	51	51
Trailmm	124	124	125	125
Stack/reach ratio	1.43	1.34	1.28	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
Bicycle weight: 18.3 kg

40.3 lb

Suspension

Suspension configuration: Full suspension
Front travel: 170 mm
Rear travel: 170 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 50
Lowest gear: 18.6 in
Highest gear: 92.8 in

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: 360 Wh

Additional specifications

Battery: Forestal Aurora Performance 360Wh / 52V / Integrated / Rapid Charge / 1.8kg / 350 x 72 x 50.5mm
Fork spring: Air
Tire width: 2.3″
Wheel material: Carbon
Wheel size: 29″

Technical analysis

3 measures

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

Front travel

170 mm

This value is within the central range for this class.

Cohort: Mountain / Enduro Model year: 2025
Sample: 1,419 bicycles with this information
Coverage: 97.5% of the class

Rear travel

170 mm

This value is above the central range for this class.

Cohort: Mountain / Enduro Model year: 2025
Sample: 1,106 bicycles with this information
Coverage: 76.0% of the class

Shifting

Electronic

477 of 1,455 bicycles with this information use electronic shifting.

Cohort: Mountain / Enduro Model year: 2025
Sample: 1,455 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.1 km/h
Highest gear: 35.5 km/h

Total gear range 500%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 18.6–92.8 gear inches

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
Specification	This bicycle Forestal Siryon Diode PRO	Forestal Siryon Halo PRO	Forestal Siryon Neon PRO
Frame
Bicycle weight	18.3 kg	17.9 kg	17.2 kg
Cockpit
Shifting	Electronic	Mechanical	Mechanical
Electric bicycle systems
Battery capacity	360 Wh	360 Wh	350 Wh
Other specifications
Tire width	2.3″	2.4″	2.3″
Wheel material	Carbon	Aluminum	Carbon