Sirris R46 Shock for Surron Ultra Bee

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.

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

LSC (Low Speed Compression)
Superior pressure balance and frequency response providing the ultimate overall responsiveness and performance for riders.

Optional DSC note: We’re fine tuning the DSC now and it will be available in a couple months (likely early 2025). The DSC will offer a wider adjustment range than the LSC. LSC and DSC fit in the same cavity and are cross compatible (with a rebuild). Both will be offered as service parts. (ie. if you purchase the current LSC now, it can be serviced and tuned to add DSC later. More details to follow)

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.

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.

R46 SHOCK

46MM PISTON, 320MM X 85MM, SURRON ULTRA BEE SPEC

Architecture

Stroke

Length

Weight

Piston

Piston band

Shaft

Shock body

Spring retainer

Bottom out

Top out

Damping

Reservoir

Adjusters

Seals

Piggyback, steel spring

85 mm

320 mm

3.9 lbs / 1.76 kg without spring

High flow Ø46 mm, CNC 6061 billet aluminum, type 3 hard anodized coating

Hard band

Ø16 mm OD chrome-plated, induction hardened steel, hollow, Ø 5.5 mm ID

Seamless 6061 aluminum, type 3 hard anodized coating, ACME thread

Seamless 6061 aluminum, type 3 hard anodized coating, ACME thread, with locking feature, manual adjust

MCU bumper

Rubber bumper

Tunable compression and rebound

Pressurized with floating piston

External compression and rebound adjustment

NBR

Weight Chart and Riding Style for ordering: