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Sirris Suspension Surron Ultra Bee
Description
Sirris Suspension for Sur-Ron Ultra Bee - A New Era in E-Moto Performance
Transform your Sur-Ron Ultra Bee with Sirris Suspension, designed specifically for e-moto riders ready to elevate their ride. With advanced tuning, durable materials, and a design made to adapt, Sirris Suspension redefines what’s possible in off-road suspension.
Features:
-
Optimized Trail Tune
- Initial setup tailored for riders 170-210 lbs
- Future options for heavier riders and MX-specific tuning
- Customizable with multiple spring rates for highly adjustable performance
-
F43 Fork: Responsive & Balanced
- 246 mm of plush travel for smoother rides
- True symmetrical closed cartridge design ensures balanced, fade-resistant performance
- Dual oil circuits separate lubrication and damping for optimal handling
- Built with 7000-series aluminum and hard chrome stanchions for long-lasting durability
-
R46 Shock: Fully Adjustable for Any Rider
- Low Speed Compression (LSC) adjustment for maximum responsiveness
- Optional DSC (Dual Speed Compression) for wider adjustment range, available soon
- Hard anodized finish for added protection and a fresh look after miles of riding
- Compatible up to 300 lbs with high-tensile steel spring options
-
Easy Installation
- Plug-and-play design—direct swap for Ultra Bee without extra modifications
- Dust seal and headset bearing pre-installed for faster setup
-
Compression, Rebound, and Preload Adjustability
- Fine-tune to match your ride style with compression, rebound, and preload controls
- Lightweight design: 8.8 lbs (4 kg) per leg for F43 fork, 3.88 lbs (1.76 kg) for R46 shock plus spring
We will contact you after your order has been placed for rider-specific information.
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 |
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.
Fitment
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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