Introducing Sirris Suspension. A new era in E-Moto suspension performance is here. PRECISION PARTSDURABLE AFRACE READY Sirris suspension products are purpose-built for E-Moto. TRANSFORM YOUR BIKE INTO A TRUE SPEED DEMON The F43 front fork — Super responsive. Purpose-tuned. Pressure balanced. With 246 mm of ultra plush travel, its true moto architecture is made for the most aggressive riding and can be tuned to your liking. THE PERFECT PAIR The R46 rear shock - Pressure balanced. Fully adjustable. Optimized for E-Moto.Revolutionize your bike's potential with harmonized suspension performance front and back. The ultimate suspension package is here. TRUE SYMMETRICAL CLOSED CARTRIDGE F43 Fork Balanced PerformanceBalanced load, race-ready, high performance. No matter how hard you ride or howmany laps you take, closed cartridge will never fade and will always feel predictable. Hydraulic Bump StopGives rider a soft landing at max stroke even on the most aggressive impacts. NO COMPROMISES Dual Oil Circuits for Optimum Performance Completely separate lubrication and damping oils allows us to optimize damping performance without compromise. High Quality Materials + Surface Treatments All cartridge bodies and outer tubes are 7000 series aluminum for maximum strength, finished in type 3 hard anodized for scratch resistance and durability. Hard chrome stanchions and wrap around guards keep it performing like new for longer. EVERY RIDER EVERY RIDING STYLE Ultimate Suspension TuningFully tunable valving on compression and rebound, with spring rates matched to riderweight and riding type. Adapt your suspension setup for different types of rides,enhancing overall riding experience. Plug-and-playDirect swap, no other modifications or additional parts needed to upgrade a stock UltraBee. Comes with dust seal and headset bearing installed on steerer tube for quickinstall. Triple clamps and guards fit directly with Ultra Bee fairing and cable routing. Compression, rebound, and preload adjustCustom spring rates for all riding styles and rider sizes. High tensile lightweight springsWeighs only 8.8 lbs (4 kg) per leg (standard configuration spring) F43 FORK 43MM USD, 856MM X 246MM, 25MM OFFSET, SURRON ULTRA BEE SPEC Architecture Upside down fork Travel 246 mm Free length 856 mm Fork weight, incl clamps and steerer 22 lbs / 10kg Stanchions Ø43, chrome-plated steel Outer tubes Seamless 7050 aluminum, type 3 hard anodized coating Drop outs Forged 6061 aluminum, type 3 hard anodized coating Triple clamps Forged 6061 aluminum, type 3 hard anodized coating Steer tube  Seamless 7050 aluminum, type 2 anodized coating Damping Symmetrical, adjustable closed cartridge with spring backed IFP Damper bodies Seamless 7050 aluminum, type 3 hard anodized coating Rebound Dual side high tensile steel spring, adjustable Adjusters External compression and rebound adjustment Seals NBR  Guards High impact PP, 210-degree wraparound    Weight Chart and Riding Style for ordering: STOCK ULTRA BEE TRIANGLE FITMENT: For guaranteed fitment on your Surron Ultra Bee, we highly recommend the Sirris rear triangle installed during the shock installation procedure. The Sirris Shock is designed to offer the maximum possible piston size and still fit within the stock linkage. Tolerances on each stock Ultra Bee vary. Light contact between spring OD and stock triangle may occur. We highly recommend our higher clearance triangle to prevent this. WARNING: Some aftermarket triangle links may have significant interference that could damage the shock and/or triangle. It’s important to check clearance as you assemble and cycle the suspension. Do not install Sirris shock if any interference is detected. Failure to properly install the shock with proper triangle can lead to a loss of control of the motorcycle which can result in SERIOUS INJURY OR DEATH.