Forestal Siryon

The Forestal Siryon eMTB has 4G LTE, Nitro and weighs just 17.4kg

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The Forestal Siryon is a 17.4kg eMTB with a self-developed motor, 170mm travel, carbon frame and 4G internet connection!

It has been a long time coming, but finally, Forestal has unveiled full specification, feature, and price details of its first-ever eMTB.

Named the Siryon, after the star Sirius, this cutting-edge pedal-assist bike might be lightweight, but it has the geometry and travel of a full-on enduro bike. At a claimed weight of just 17.4kg for a medium bike, the Forestal Siryon, is about the same weight as the latest Specialized Levo SL, but with 170mm of travel front and rear, more aggressive geometry and a motor that offers more torque, the newcomer is an altogether different bike.

Forestal EonDrive

Forestal Siryon eondrive
Designed by Forestal built by Bafang.

Powering this long travel, 29er is Forestal’s own EonDrive motor. This compact drive system has been designed and developed inhouse with the help of Chinese motor maker Bafang. Made of a combination of high-end materials such as Titanium and Magnesium, the motor weighs just 1.95kg and has a narrow Q-Factor of only 170mm.

EonDrive is a 250w power unit that offers 60Nm of torque and promises zero drag when disengaged. It’s powered by Forestal’s own integrated Aurora 350w battery pack that boasts fast charging from 0-80% in only 1h 24min, and riders can choose to add range extender battery to the system if they need more range.

Forestal Smart Trigger
Nitro is the mode we’re most excited about.

Like most eMTB motor systems the EonDrive offers 3 power modes Eco, Sport and Race, but there’s also one extra mode that we’re very excited about. Nitro will give you an instant boost no matter which mode you have the Siryon in. You’re still required to pedal the bike and Nitro is an assist mode, but think of it as a shortcut to get you in Boost whenever you need it.

Those modes are selected through a bespoke Forestal Smart Trigger. We actually spoke about this last month during the teasers for the bike. This Smart Trigger features LED lights that can tell you which mode you are in and how much power you have left in your battery. Rather than a button or switch, the Smart Trigger rotates around the bar and an be controlled by your thumb.

Forestal Dashboard

The Forestal Siryon eMTB has 4G LTE, Nitro and weighs just 17.4kg
Forestal Smart Dashboard

If all of the tech so far wasn’t enough, then a Smart Dashboard built into the top tube of the frame might appeal. More than just a 3.5in touch screen, this Dashboard has it’s own 4G LTE data connection, ANT+ and Bluetooth so it can sync with your mobile phone and the dedicated Forestal app. With built-in GPS, Foestal has even added theft recovery features to help you recover the bike should it ever go missing.

Navigation and Strava integration is all part of the tech package, but sensors in the bike can also report on air time, G outs and more. It all sounds pretty fantastic.

Because Siryon is connected, Forestal are promising OTA (over the air) updates for the bike which could add more features, enhance current features, or possibly add cool Easter eggs for owners to discover.

Siryon Alpha Box Frame

Forestal Siryon Alpha Box Frame
Forestal Siryon Alpha Box Frame

All of these high-tech items are integrated into a carbon fibre frame with modern enduro bike geometry. The head-angle measures64°, the seat tube 77° and reach on a large frame is 488mm. The Alpha Box design has the rear shock sit inside the top tube and is visible from above. It’s a design feature that we expect will be carried over to other Forestal models in the future.

With the rear shock tucked high up in the frame and the 350Wh battery integrated in the downtube, there is plenty of room in the frame for a bottle cage. The bottle cage will also be where a piggy back battery can be held to increase range.

Not mentioned in the press release but visible in these images is an integrated rear fender inside the rear triangle, and we can just make out the battery charging port below the bottle bosses low in the frame.

Outback is another in-house design, Twin-Levity suspension. On the surface, the Twin Levity suspension design looks like a single pivot similar to an Orange, but there is a linkage that is just visible and gives the frame a coil friendly kinematic.

Forestal will offer the Siryon in 4 frame sizes, S, M, L, and XL, and the first 1000 frames will come in limited colour and individually numbered.

Forestal Siryon Geometry

The Forestal Siryon eMTB has 4G LTE, Nitro and weighs just 17.4kg
Forestal Siryon Geometry

Forestal Siryon Editon One Polar Lights

The Forestal Siryon eMTB has 4G LTE, Nitro and weighs just 17.4kg
Polar Lighs Edition

For the first lot of 1000 bikes, the Siryon will be offered as a Limited Edition One Polar Lights bike. Each bike will be numbered from 000-999, and will come in this special colour featuring the brand’s signature lizard green.

Edition One bikes will be built using DVO Suspension, Crankbrothers Synthesis carbon wheels, SRAM GX Eagle drivetrain, Magura MT7 brakes, Praxis Carbon cranks, and Panaracer tyres.

Forestal Siryon Edition One Polar Lights Specifications

  • Frame // Forestal Alpha Box Carbon Enduro 29″ TR 170 Monocoque construction/ Track Ready / 170mm Travel / 2.4kg Size M
  • Sizes // S / M / L / XL
  • Motor // Forestal EonDrive 250W / 60Nm / IP67 / 1.95kg / 165 x 105 x 147mm
  • Battery // Forestal Aurora Performance 350Wh / 51V / Integrated / Rapid Charge / 1.8kg / 350 x 72 x 50.5mm
  • Display // Forestal Smart Dashboard 3.2″ Integrated HD Transflective touch screen / All conditions-resistant
  • Remote // Forestal Smart Trigger 3 Buttons / Battery & Assistance LED Indicators
  • Fork // DVO Onyx Coil 29″ 170mm Tapered alloy / Offset 44mm / Stanchions 36mm / Axle 15mm Boost / High & low speed compression / Rebound / OTT
  • Shock // DVO Jade X Coil 230×65 Metric / Coil spring preload / High & low speed compression / Dynamic Rebound / Bladder pressure adjust
  • Stem // Forestal Oxydon 45mm ⌀ 31.8mm / 7075 Heavy duty Aluminum
  • Handlebar // Forestal Oxydon C 800mm ⌀31.8mm / Toray T700 & T800 Carbon
  • Grips // Production Privée CR35 + – 1° backsweep & upsweep adjust
  • Seatpost // Crankbrothers Highline 7 ⌀31.6mm / Aluminum 7076 T6 / Length 125mm Size S / Length 150mm Sizes M, L / Length 175mm Size XL
  • Saddle // Fizik Monte Kium Enduro Carbon reinforced / Kium rails / Low density for low pressure / 230g / 275 x 143mm
  • Front Brake / Rotor // Magura MT7 / Storm HC 203mm 4-piston caliper with HC Lever / 6-Bolt Rotors
  • Rear Brake / Rotor // Magura MT7 / Storm HC 180mm 4-piston caliper with HC Lever / 6-Bolt Rotors
  • Cranks // Praxis Carbon Q-Factor 170mm / ISIS Drive / 104 BCD / Length 160mm Sizes S, M / Length 165mm Sizes L, XL
  • Rear Derailleur // SRAM GX Eagle 12 Speed / Cage Lock / Roller Bearing Clutch / X-Actuation 1X
  • Cassette // SRAM Eagle XG-1275 Eagle / 10-50T / 12 Speed / XD Driver Body / Full Pin
  • Chain // SRAM GX Eagle 12 Speed / Powerlock / Flowlink
  • Shifter // SRAM GX Eagle 12 Speed / X-Actuation 1X / Zero Loss
  • Front wheel // Crankbrothers Synthesis E Carbon 29” Enduro Hub CB Standard / 15 x 110mm Boost / Spokes Sapim D-Light / 6-Bolt / Inner Rim 31.5mm / Outer Rim 37.5mm
  • Rear Wheel // Crankbrothers Synthesis E Carbon 29” Enduro Hub CB Standard / 12 x 148mm Boost / Spokes Sapim Race / XD Drivetrain/ 6-Bolt / Inner Rim 29.5mm / Outer Rim 36.5mm
  • Front Tyre // Panaracer Romero 29 x 2.4 HO 3Comp. High Output / Tubeless Ready / Triple Compound / Puncture resistant wall
  • Rear Tyre // Panaracer Aliso 29 x 2.4 HO 3Comp. High Output / Tubeless Ready / Triple Compound / Puncture resistant wall
  • Weight // 17.4kg Size M

So it’s high-tech, has a good looking spec, and decent geometry so what’s the catch? The catch is you can’t buy one yet, but only pre-order one and to do so you’ll either have to fork over €7499 upfront or a €2000 deposit followed by a final payment of €5999 AND you can’t expect your bike to arrive until October.

Now, as good as the Forestal Siryon looks on paper, that’s a lot of money to spend on a bike that we haven’t seen or tested not to mention one from a new brand. Luckily Forestal has promised that we will be one of the first magazines to test the Siryon and hopefully we won’t have long to wait before we can tell you if it lives up to the hype or not.

For more info visit the new Forestal website here and to learn more about Forestal read our exclusive article about the brand here.

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