Siryon 2025

The Forestal Siryon 2025 is the Andorran boutique brand's flagship carbon e-enduro, built around Bafang's M820 motor and Forestal's signature Aurora 360 Wh integrated battery. It runs 170 mm of travel front and rear on Forestal's proprietary Twin Levity suspension. Headline numbers: 80 Nm of torque from the Bafang M820, a claimed 17.4 kg system weight (extraordinary for an enduro chassis), a 64 to 64.5 degree size-and-trim-dependent head angle, a 436 to 446 mm chainstay range and reach growing from 428 to 508 mm across an unusually deep nine-size lineup. Trim ladder runs £9,499 Halo Pro through £10,999 base, Diode Pro and Neon Pro. Production status: discontinued. Community verdict: a properly innovative bike that pioneered stealth integration on Bafang's M820 motor before Forestal exited the bike business.

Drive system and range. The Bafang M820 in Forestal's tune delivers 80 Nm of torque (some early Siryon variants were detuned to 60 Nm for stealth character, with the standard tune at 75 Nm rising to 95 Nm in super-turbo). The motor weighs just 2.3 kg, making it one of the lightest full-system options. Forestal's Aurora 360 Wh battery is integrated and non-removable, giving the bike its signature slim downtube. Real-world range is the most consistent compromise: range anxiety was a major theme in owner reviews, with the 360 Wh capacity limiting mixed-terrain rides to 30 to 45 km depending on assist mode. A range extender adds capacity for longer rides and reportedly lasts longer than the Orbea Rise's equivalent.

Geometry and handling. A 64 to 64.5 degree head angle (varying slightly with size and trim) is bang on the modern enduro norm. Reach grows from 428 mm in SM to 508 mm in XL. Chainstays sit at 436 mm on SM and MD, growing to 446 mm on S/M and larger, a size-specific approach that gives bigger riders proportional rear centres. Twin Levity suspension delivers what owners describe as exceptional plushness, with one rider calling the rear feel comparable to a Santa Cruz V10 downhill bike. Wheelbases are reported in the gold record as 962 to 1061 mm which appear inconsistent with modern eMTB standards (likely a data export error for a different measurement reference; modern enduro wheelbases would typically sit 1200 to 1330 mm at these reach figures).

Build and value. Five trims. The Halo Pro at £9,499 (17.9 kg) starts the line, the Halo at £9,999, the base, Diode Pro and Neon Pro all sit at £10,999 with the Neon Pro coming in heavier at 19.8 kg. The standout strength is the chassis weight: a 17.4 kg full carbon 170 mm enduro chassis was genuinely revolutionary at launch. The questionable note is the 360 Wh battery and the £9,499-plus price ceiling, which limited the Siryon to a niche flagship buyer base.

Community-verified strengths. Forestal Siryon owners praise the Bafang M820 motor as quieter than the Orbea Rise EP801 and with a better battery indicator, more power modes and a range extender that outlasts the Rise. The chassis weight, Twin Levity suspension feel and stealth integration (slim downtube, minimal motor signature) are repeatedly called as industry-leading. The Bafang M820 in the Siryon's slim package was reportedly under 50 dB at 60 Nm with drag-free drivetrain feel compared to the heavier Bafang M600.

Caveats and known gripes. The most consistent complaint was range anxiety from the 360 Wh non-removable battery. The Forestal display module had documented supply, development, electrical interference and reliability issues from launch, with white-screen failures requiring screen replacement. Forestal's customer support and warranty record was modest, partly reflecting their boutique-volume business model. The Bafang M820 motor, while novel and well-tuned in the Siryon, has less long-term service network depth than Bosch, Shimano or DJI. And the brand's discontinuation in 2025 effectively ends new-bike support: existing owners will rely on aftermarket parts and community-led service.

Verdict. The Siryon 2025 suits the boutique-eMTB collector or aggressive lightweight enduro rider who wants Forestal's unique chassis-and-Twin-Levity package with a 17.4 kg headline weight, and who is comfortable with discontinued-product service realities and a 360 Wh range. Riders chasing larger batteries, current production status or stronger long-term support should look at the Whyte Karve EVO, the Trek Slash+ or the Specialized Levo SL Gen 2. Production status: discontinued.