Sirris F43 CMX Tune Front Fork | E-Ride Pro 3.0

Meet the Sirris F43 CMX Fork — the world’s best compact e-moto fork, period. Built on the oversized, race-proven F43 chassis and tuned with the CMX closed-cartridge damper, this fork delivers unreal control, razor-sharp handling, and front-end confidence that no stock fork can match. Strong, durable, and endlessly tunable — this is the fork elite racers and everyday rippers have been waiting for.

It’s not just stiffer — it delivers strength without compromise.
Everything is designed to improve balance, eliminate flex, soak up punishment, and offer long-haul durability with adjustability for riders who push harder

Why You’ll Want It

⚡ Full-Size Performance in Compact Form – The legendary F43 chassis re-engineered for today’s most popular light e-motos.
⚡ 220mm of Travel – More stroke, more control, more fun.
⚡ Oversized 43mm Stanchions – Stiffer, stronger, and built to take a beating.
⚡ CMX Closed Cartridge – Pro-level damping with independent compression & rebound control.
⚡ Tool-Free Compression Adjusters – Nearly 30 clicks of quick tuning, no tools required.
⚡ Wider 178mm Fork Spacing – Run dirt or street tires without limits.
⚡ Direct-Mount Stem Ready – Maximum stiffness and steering precision.
⚡ Optional Drop Clamp – Run a 21” front wheel and raise the front end 25mm.

Sirris offers two weight ranges when selecting your CMX Tune F43 fork for E-Ride Pro SS 3.0. (Listed weight ranges are rider weight without riding gear on. 15 pounds of riding gear is calculated into the weight ranges)

140 lbs - 180 lbs  (Medium = 3.6/3.6 springs)
180 lbs - 220 lbs  (Heavy = 4.0/3.6 springs)
Fork spring rates listed above are left side/right side.