Sirris F43 CMX Fork for Arctic Leopard XE Pro S and Enduro

This Arctic Leopard XE Pro fork is the Sirris F43 CMX for the XE Pro S and Enduro, with 220mm of travel, a black billet drop clamp, and a 220mm rotor bracket. The XE Pro R uses a different brake bracket, so it has its own listing.

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.
• Arctic Leopard XE Pro S wheel spacers included.
• Ships with the drop clamp in black: 800mm total length.
• 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.
• 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: Drop clamp in black.
• Spring rates for the Arctic Leopard XE Pro S: Medium 4.0/3.6, Heavy 4.0/4.0 (left / right) - sized to this bike, not a one-rate fork.
• Sirris part family 430-99-035.

Fits these models:

• Arctic Leopard XE Pro S
• Arctic Leopard XE Pro Enduro

Does NOT fit: Arctic Leopard XE Pro R (separate F43 listing)

Sirris F43 Fork FAQ

Which spring rate do I pick for the Arctic Leopard XE Pro S?

Pick by rider weight without gear; 15 pounds of gear is already built into the ranges. Medium covers 140 to 180 pounds with 4.0/3.6 springs. Heavy covers 180 to 220 pounds with 4.0/4.0 springs. Rates are listed left side / right side.

Do I need a new stem?

Check your bike. Early XE Pro S models may need a 4-bolt direct mount stem because the Sirris steer tube cannot be clamped. Later XE Pro S models already have a direct mount stem and need nothing.

Does it fit the XE Pro R?

No. The R uses a different brake bracket, so Sirris builds a separate F43 for it. This fork fits the XE Pro S and the Enduro.

Is there a matching rear shock?

Yes. The Sirris R38 2SC fits all three Arctic Leopard XE Pro models and is tuned to pair with the F43 CMX. It runs with the TMB R38 linkage, sold separately.

Which stock parts carry over?

Your stock upper steering bearing, split race, and seal stay on the frame. The brake bracket bolts on with M6 bolts at 18 Nm.

Ships from USA!