Description
Introducing Sirris Suspension. A new era in E-Moto suspension performance is here.
PRECISION PARTS
DURABLE AF
RACE READY
Sirris suspension products are purpose-built for E-Moto.
Fork and shock for Surron Ultra Bee available Fall 2024.
Buy Dust and other E-Motos equipped with Sirris suspension in the near future, stay tuned.
Pre-order now for Fall release! Specific timing will be updated as production schedules are shared throughout August and September. You will be charged the remaining balance when the product arrives and is ready to ship.
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 Performance
Balanced load, race-ready, high performance. No matter how hard you ride or how
many laps you take, closed cartridge will never fade and will always feel predictable.
Hydraulic Bump Stop
Gives 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 ano 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 Tuning
Fully tunable valving on compression and rebound, with spring rates matched to rider
weight and riding type. Adapt your suspension setup for different types of rides,
enhancing overall riding experience.
Plug-and-play
Direct swap, no other modifications or additional parts needed to upgrade a stock Ultra
Bee. Comes with dust seal and headset bearing installed on steerer tube for quick
install. Triple clamps and guards fit directly with Ultra Bee fairing and cable routing.
Compression, rebound, and preload adjust
Custom spring rates for all riding styles and rider sizes.
High tensile lightweight springs
Weighs only 8.8 lbs (4 kg) per leg (standard configuration spring)
R46 Rear Shock
EXCEPTIONAL RESPONSIVENESS
Ultimate Suspension Tuning
Fully tunable valving on compression and rebound, with spring rates matched to rider weight and riding type. Adapt your suspension setup for different types of rides,
enhancing overall riding experience.
TUNING WITHOUT COMPROMISE
DSC (Dual Speed Compression)
Allows a broad adjustment range that truly separates the high speed and low speed
circuits for superior adjustment control.
Made For You
Tunable to any rider style and condition. Personalize to rider weight up to 300 lbs (135
kg) with high-tensile steel spring rate options.
BUILT TO LAST
High Durability Finishing
Type 3 hard anodized body cap, body, reservoir, end cap, spring hardware, and clevis.
Induction heat treated, hard chrome hollow shaft. The rear shock will look new, even
after thousands of miles.
Extremely Easy to Rebuild
Fully serviceable design ensures easy rebuilds and custom tuning.
Direct Swap
Easy installation, 320 mm length (85 mm stroke) bolts directly onto a stock Ultra Bee.
Lightweight
Weighs only 3.9 lbs (1.76 kg) plus 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 |
R46 SHOCK
46MM PISTON, 320MM X 85MM, SURRON ULTRA BEE SPEC
Architecture |
Piggyback, steel spring |
Stroke |
85 mm |
Length |
320 mm |
Weight |
3.9 lbs / 1.76 kg without spring |
Piston |
High flow Ø46 mm, CNC 6061 billet aluminum, type 3 hard anodized coating |
Piston band |
Hard band |
Shaft |
Ø16 mm OD chrome-plated, induction hardened steel, hollow, Ø 5.5 mm ID |
Shock body |
Seamless 6061 aluminum, type 3 hard anodized coating, ACME thread |
Spring retainer |
Seamless 6061 aluminum, type 3 hard anodized coating, ACME thread, with locking feature, manual adjust |
Bottom out |
MCU bumper |
Top out |
Rubber bumper |
Damping |
Tunable compression and rebound |
Reservoir |
Pressurized with floating piston |
Adjusters |
External compression and rebound adjustment |
Seals |
NBR |