Sirris F43 CMX Fork for Eride Pro SR | 220mm Travel

This Eride Pro SR fork is the Sirris F43 CMX: 220mm of travel, 43mm chromed stanchions, and a closed cartridge damper tuned for a light E-moto ridden hard. The SR version runs stiffer springs than the SS 2.0 fork.

Specs:

• 220mm travel, upside down architecture - full-size MX layout on a lightweight E-moto chassis.
• 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 or blue.
• Spring rates for the Eride Pro SR: Medium 4.0/4.0, Heavy 4.4/4.0 (left / right) - sized to this bike, not a one-rate fork.
• Sirris part family 430-99-014.

Fits the Eride Pro SR:

• Eride Pro SR

Does NOT fit: Eride Pro SS 2.0 (separate F43 listing), Eride Pro SS 3.0 (separate F43 listing)

Sirris F43 Fork FAQ

Which spring rate do I pick for the Eride Pro SR?

Pick by rider weight without gear; 15 pounds of gear is already built into the ranges. Medium covers 140 to 180 pounds with 4.0/4.0 springs. Heavy covers 180 to 220 pounds with 4.4/4.0 springs. Rates are listed left side / right side.

Does it pair with the Sirris R38 shock?

Yes. The R38 is tuned to pair with the F43 CMX fork. Its linkage raises the rear 25mm, and the drop clamp raises the front by the same 25mm to keep the bike level.

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.

Can I keep my stock stem?

Only if it is a 4-bolt direct mount stem. The Sirris steer tube cannot be clamped, so a stem that clamps around the steerer will not work.

What does CMX tune mean?

CMX is Sirris's Compact Motocross Tune. It is the damping setup built for small, light E-motos ridden hard, not a full-size motocross valving shrunk down.

Ships from USA!