Sirris

Sirris R46 Shock for Surron Ultra Bee

$899
Ships in 1–3 business days
Tune
Authorized dealer 30-day returns Fitment help before you order Secure checkout
    • Sourced & tested by riders
    • Install service at our Colorado Springs shop
    • Fitment questions? Text us — we ride these

    Off-road / closed-course use unless your state says otherwise. Supermoto wheels do not make a bike street-legal — titling, lighting and registration are the rider's responsibility.

    Confirm your exact model and year before ordering.— fits Sur-Ron Ultra Bee
    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.

    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 bike which can result in SERIOUS INJURY OR DEATH.

    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:

    Genuine part. Message us to confirm fitment before it ships.

    Fitment

    Fits: Sur-Ron Ultra Bee

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    Sirris R46 Shock for Surron Ultra Bee $899