Sirris F43 Fork for Surron Ultra Bee
SKU: 70859473813

Sirris F43 Fork for Surron Ultra Bee

Sale price$1012.49 Regular price$1124.99
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

Sirris F43 Fork for Surron Ultra BeeIntroducing 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. 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

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.

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 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 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)

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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 70859473813

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Product Reviews
E
Verified Purchase
Erin Mckenzie
Lexington, US
★★★★★ 5
Works great!
Style: with Pre-Filter
I bought this set to put on my original euphy robot vacuum. It works perfect! All pieces fit perfectly and were so easy to change out. I’ve had the new parts installed for a few weeks and it works so much better now. I recommend them for sure if you need any new parts for yours!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
L
Verified Purchase
Larry Daily
Los Angeles, US
★★★★★ 5
Perfect Fit
Style: with Pre-Filter
These parts fit our vacuum perfectly and gave us replacements for almost everything. Quick shipping.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
J
Verified Purchase
Jeremy
Alexandria, US
★★★★★ 5
Best parts for the price
Style: with Pre-Filter
Just what I needed to get my vacuum back up and running.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
R
Verified Purchase
Randall Reviews
Port Orchard, US
★★★★★ 4
Very good Value for replacement part and reliable
Style: with Pre-Filter
Very good product for the price - the front brushes wear fast compared to the original Eufy’s but for the value you do get a lot of product. So only 4 stars but just for the brushes “appearing to not last as long and bend but the buy is worth the extras. The filters look and work identical to the OEM. Good stuff - thanks!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 25, 2025
E
Verified Purchase
Eduardo
Boise, US
★★★★★ 5
Perfect fit, 11s running like new!
Style: with Pre-Filter
All parts fit perfectly. My vacuum lasts about 20 min longer since the filter isn’t clogging it. Also, replacing the spinning brush quieted it down significantly, it sounds like new again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026

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