The R46 for Surron Ultra Bee is here
THE PERFECT PAIR. 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 MX Tune | LSC
MX Tune is a motocross specific tune with balance, control, and bottoming resistance for the fastest speeds.
Firm suspension for maximum control and support for huge jumps, whoops and fast cornering. If you select the EBMX or MX spec, you’ll compromise a bit of trail plushness for improved bottoming resistance.
RIDER WEIGHT SPECS:
Sirris offers five weight ranges to choose from when selecting your MX Tune R46 shock. (Listed weight ranges are rider weight without riding gear on.)
120 lbs - 160 lbs (Light ships with 85 N/mm spring)
160 lbs - 200 lbs (Medium ships with 95 N/mm spring)
200 lbs - 240 lbs (Heavy ships with 105 N/mm spring)
240 lbs - 280 lbs (X Heavy ships with 115 N/mm spring)
280 lbs - 320 lbs (XX Heavy ships with 115 N/mm spring)
PRODUCT SPECS:
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
MX TUNE
A motocross specific tune with balance, control, and bottoming resistance for the fastest speeds.
Firm suspension for maximum control and support for huge jumps, whoops and fast cornering.
If you select the EBMX or MX spec, you’ll compromise a bit of trail plushness for improved bottoming resistance.
MX TUNE
A motocross specific tune with balance, control, and bottoming resistance for the fastest speeds.
Firm suspension for maximum control and support for huge jumps, whoops and fast cornering.
If you select the EBMX or MX spec, you’ll compromise a bit of trail plushness for improved bottoming resistance.
TUNING DETAILS & RIDER WEIGHT RANGE
Every rider, every riding style. Sirris offers multiple weight ranges to choose from when selecting your suspension.
Listed weight ranges are body weight without riding gear.
SETTINGS NOTE: Settings are number of clicks from the closed position (full clockwise). Once they are in the closed position, back them out (counter-clockwise) according to the number of clicks indicated in the chart above to get you to factory settings.
*OIL NOTE: Sirris uses Shell Tellus S2 VX15 (5wt) in the fork cartridge and Shell Tellus S2 VX68 (20wt) as the bath oil. These are cross compatible with other high quality 5wt and 20wt suspension fluids. Sirris uses a semi-synthetic 2.5wt oil in the shock that is also compatible with other high quality 2.5wt aftermarket suspension fluids. You can use 5wt/20wt oils of your preference, Lubefinder.com can be used to source the fork oils. KYB K2C can be used in the shock and has wide availability.
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 2SC will be available soon. The 2SC will offer a wider adjustment range than the LSC. LSC and 2SC fit in the same cavity and are cross compatible (with a rebuild). Both will be offered as service parts.
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 like new, even after thousands of miles.
Extremely Easy to Rebuild
Fully serviceable design ensures easy rebuilds and custom tuning.
TECH HELP
Suspension setup, owner's guide, tech help, warranty and more. Learn how to properly set up, use, and maintain your new Sirris suspension products.
