Sirris R46 Trail Tune Shock | Surron Ultra Bee
Pair with
Sirris R46 Trail Tune Shock | Surron Ultra Bee
Description
Surron Ultra Bee
Sirris R46 Trail Tune Shock
The most versatile shock you can bolt onto your Ultra Bee.
The Sirris R46 Trail Tune strikes the perfect balance of sporty support and aggressive control, giving you the confidence to charge fast across any terrain.
This isn’t a Moto-only setup—it’s plush enough for nasty terrain, yet firm enough to handle g-outs and small jumps without flinching. If you want one shock that does it all—trail ripping, flow lines, and pushing pace—the R46 Trail Tune is it.
Finish the complete set up with the F43 Trail Forks!
Why Riders Choose Trail Tune ⚡️
-
Aggressive Trail Performance – Sporty & supportive across mixed terrain
-
Balanced Feel – Firmer than the Hard Enduro tune, but still adaptable
-
Bottoming Resistance – Handles g-outs and smaller jumps with confidence
-
E-Moto Ready – Built specifically for the Surron Ultra Bee
Rider Weight Options 🏁
Choose the right spring rate for your weight (add 15 lbs for riding gear):
-
130–160 lbs → Light (ships with 75 N/mm spring)
-
160–210 lbs → Medium (85 N/mm spring)
-
210–230 lbs → Heavy (90 N/mm spring)
-
230–250 lbs → X Heavy (95 N/mm spring)
-
250–280 lbs → XX Heavy (105 N/mm spring)
-
280–350 lbs → XXX Heavy (115 N/mm spring)
TUNING DETAILS & RIDER WEIGHT RANGE
Listed weight ranges are body weight without riding gear (15 pounds of riding gear is calculated into the weight ranges). Weights of upgrades (battery, controller, etc) need to be added to rider weight.
TRAIL TUNE Starting point notes:
Assuming neutral riding position, with 15 lbs gear on.
Weights of upgrades (battery, controller, etc) to be added to rider weight
Stock bike with 18/21 wheels
Riders close to a weight cut off need to adjust preload to compensate
Very aggressive/pro riders to consider +1 weight class and drop preload to get sag, especially if in the upper range.
Rider preference and riding conditions may require a different setup
Example:
190 lb rider without gear, 20 additional lbs with upgraded controller/battery
Weight calculation 190+20 = 210
Aggressive rider = Heavy tune with low preload
Relaxed rider = Medium tune with high preload
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.
Which Tune Should You Choose? 🤔
Trail Tune
👉 Best for all-around riding. Sporty, supportive, and versatile. Plush enough for rough terrain, firm enough for g-outs and small jumps.
MX Tune
👉 Motocross focused. Firm suspension built for speed, whoops, and big landings. Maximum control and bottoming resistance at race pace.
SX Tune
👉 Pro-only. The stiffest setup in the lineup, developed with Josh Hill for the biggest hits and hardest landings. If you’re not racing at a pro level, it’ll feel too firm.
⚡ Simple Rule:
-
Trail = Versatile everyday shredder
-
MX = Track and moto performance
-
SX = Beast mode (for pros only)
Tech Specs
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.
-
Contact Us
Use this text to answer questions in as much detail as possible for your customers.
-
Information
Share contact information, store details, and brand content with your customers.