After three years of development and countless prototypes exploring different geometries, kinematics, motor systems, and carbon fiber compositions — the ONE has finally arrived. Crafted by one of the world’s foremost carbon fiber specialists, its frame construction rivals the precision and artistry of haute couture. Made from the same high-performance Toray fibers used in the aerospace industry, every layer is meticulously oriented to deliver maximum strength and reliability while achieving the ideal balance of weight, stiffness, and tolerance. The result: a chassis that embodies pure engineering excellence. ⚙️ Specifications 🧱 Frame Frame: Full Carbon Toray E-Enduro, Integrated Boost, 160 mm 🪂 Suspension Fork: FOX 38 Float Factory Kashima, 170 mm, Boost, Tapered Travel: 170 / 160 mm (S: 160 / 160 mm) Shock Absorber: FOX Float X2 Factory Kashima 230 × 65 mm ⚡ Motorization Engine: New Bosch Performance Line CX Smart System — Torque: 85 Nm / Max Power: 600 W / 100 Nm compatible via the eBike Flow app Battery: Bosch PowerTube 800 Display: Bosch Purion 400 🚴 Transmission Rear Derailleur: SRAM GX Eagle Lunar 12-Speed AR Crankset: E-Thirteen 160 mm / SRAM X-Sync 34T Cassette: SRAM Eagle XG1275 12-Speed, 10–52 XD 🛑 Brakes Brakes: Formula Cura 4 — 220 / 203 mm rotors 🛞 Wheels Wheel Size: 27.5" / 29" Rims: DT Swiss H1900 Spline Tubeless Hubs: Boost, Thru Axle Tires: Michelin E-Wild Racing Line 29 × 2.4 / Michelin E-Wild Racing Line 27.5 × 2.6 TLR 🧩 Components Handlebar: Brute One Alloy 780 mm × 31.8 — Rise 25 Stem: 3D Forged Alloy, Integrated 31.8 × 45 mm Seatpost: Brute Dropper — 130 mm (S) / 150 mm (M) / 170 mm (L–XL) Saddle: Fizik Terra Aidon X5 ⚖️ Weight Total Weight: 24.5 kg 📄 Documentation SUNN E-MTB Instructions Bosch CX Engine Manual Bosch PowerTube 800 Battery Bosch Purion 400 YGSUV8 Certificate 📐 Geometry Specification S M L Seat Tube Height (ST) 360 410 460 Top Tube Length (TT) 574 601 629 Wheelbase (WB) 1221 1250 1280 Head Angle (HA) 64° 64° 64° Seat Tube Angle (SA) 77.5° 77.5° 77.5° Chainstay Length (RC) 445 445 445 Bottom Bracket Height (BB) -28 -28 -28 Head Tube Length (HT) 100 110 120 Reach (mm) 435 460 485 Stack (mm) 628 637 646 📏 Size Guide Rider Height Recommended Size Fit 158 cm - 170cm Size S 168 cm - 180cm Size M 178 cm - 188cm Size L
