Sirris F43 CMX Fork for Surron Light Bee X | 220mm Travel

This Surron Light Bee fork is the Sirris F43 CMX for the Light Bee X, with 220mm of travel and a 220mm rotor bracket in the box. The stock 200mm rotor has to go, and so does the stock stem.

Specs:

• 220mm travel, upside down architecture - full-size MX layout on a lightweight E-moto chassis.
• Sized for 220mm rotors; 220mm rotor brake bracket included - replaceable caliper mounts leave room for later caliper and wheel upgrades.
• Surron Light Bee X wheel spacers included.
• 43mm stanchions in high tensile steel with hard chrome - stiff legs that track straight under braking.
• Seamless 7050 aluminum outer tubes and damper bodies, type 3 hard anodized - resists scratches and wear.
• 775mm free length; the optional drop clamp adds 25mm - room for a 21 inch front wheel conversion.
• 178mm fork spacing - clears dirt or street tires.
• Symmetrical closed cartridge damping with dual oil circuits - lubrication and damping oil stay separate, so the feel stays consistent lap after lap.
• Hydraulic bump stop - controls bottoming on big hits without giving up stroke.
• Tool-free external compression adjuster; rebound adjusts with a tool - dial it in at the trail.
• Billet 6061 aluminum triple clamps, type 2 anodized; seamless 7050 aluminum steer tube.
• Motorcycle-style top cap - sets steering bearing tension more consistently.
• NOK MX seals, Daido MX bushings, 210 degree high impact PP guards.
• 4kg per leg.
• Clamp options: Standard clamp in black or blue, or the drop clamp in black.
• Spring rates for the Surron Light Bee X: Medium 3.6/3.2, Heavy 3.6/3.6 (left / right) - sized to this bike, not a one-rate fork.
• Sirris part family 430-99-019.

Fits the Surron Light Bee X:

• Surron Light Bee X (with 220mm front rotor; also sold as Segway X160 / X260)

Does NOT fit: Surron LB2

Sirris F43 Fork FAQ

Which spring rate do I pick for the Surron Light Bee X?

Pick by rider weight without gear; 15 pounds of gear is already built into the ranges. Medium covers 140 to 180 pounds with 3.6/3.2 springs. Heavy covers 180 to 220 pounds with 3.6/3.6 springs. Rates are listed left side / right side.

Do I need a new front rotor?

Yes. The Light Bee X ships with a 200mm front rotor, and this fork is sized for 220mm. The 220mm brake bracket is included; the rotor is not. Our 220mm rotor fits.

Why won't my stock stem fit?

The stock Light Bee X stem clamps around the steer tube, and the Sirris steer tube cannot be clamped. You need a 4-bolt direct mount stem.

What does the drop clamp do?

It adds 25mm of extended length. That extra length is what makes a 21 inch front wheel conversion possible.

What can I adjust without tools?

Compression adjusts by hand on the outside of the fork. Rebound uses a tool. Sirris recommends about 5 hours of riding before you make big clicker or valving changes.

Ships from USA!