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An oversized, race-built F43 chassis paired with our CMX-tuned closed cartridge damper — built for elite control, razor-sharp handling, and unreal front-end confidence. This is the strongest, most durable, highest performance fork available.
You need to ride it to believe it.
It’s that good.
BIKE FITMENT:
Note: This fork also fits the E Ride Pro SS 3.0, it will feel quite a bit Stiffer on the SS 3.0 due to having heavier spring rates for a heavier weight bike. Please compare Spring rates to the E Ride Pro SS 3.0 CMX Offering
SPRING RATE CHART:
Sirris offers two weight ranges when selecting your CMX Tune F43 fork for E-Ride Pro SR. (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 = 4.0/4.0 springs)
180 lbs - 220 lbs (Heavy = 4.4/4.0 springs)
Fork spring rates listed above are left side/right side.
TOOL-FREE COMPRESSION ADJUSTERS
NEW FOR CMX — Allows for quick compression adjust without a screwdriver.
Enjoy nearly 30 clicks of quick external adjustability.

DIRECT MOUNT STEM
DM READY — New CMX fork is designed with a Direct Mount (DM) setup, so the stem you’re already using will bolt right up—no hassle, no extra parts.

DROP CLAMP OPTION
BIG WHEEL OPTIONAL — Allows for fitment of 21” wheel by raising the front end an additional 25mm while retaining 220mm travel. (Raising the front end maintains balance of the bike if paired with a longer shock that raises the rear)

NEW AXLE & BRAKE MOUNTS
ULTRA STIFF AND CONFIGURABLE — Axle and drop out assembly promotes front end feel and steering precision. Replaceable caliper mount brackets allow for caliper upgrades.

FORK SPECS:
Architecture
Upside down fork
Travel
220 mm
Free length
775 mm
(drop clamp option adds another 25mm of extended length)
Fork Spacing
178 mm - allows for unlimited tire choice (dirt or street)
Fork weight
4 kg per leg (driven by sturdy construction required for the forces and speeds encountered when pushing these bikes to their limits without compromising performance)
Stanchions
Ø43, high tensile steel with hard chrome
Outer tubes
Seamless 7050 aluminum, type 3 hard anodized coating
Drop outs
6061 aluminum, type 2 anodized coating
Replaceable caliper mount brackets allow for caliper and wheel upgrades
Axle
Ultra-high tensile hard chromed axle increases steering precision and confidence
Triple clamps
Billet 6061 aluminum, type 2 anodized coating
Optional drop clamp allows for 21” front wheel conversion
Steer tube
Seamless 7050 aluminum, type 2 anodized coating
Damping
Symmetrical, adjustable closed cartridge with spring backed modified IFP
Damper bodies
Seamless 7050 aluminum, type 3 hard anodized coating
Rebound
Dual side high tensile steel spring, adjustable
Adjusters
External tool-free compression, rebound adjustment
(rebound adjusted using tool)
Seals
NOK MX seals
Bushings
Daido MX bushings
Guards
High impact PP, 210-degree wraparound

Frequently Asked
Questions
Do you ship e-motos and electric dirt bikes nationwide?
Yes - we ship e-motos and electric dirt bikes nationwide throughout the United States. Whether you’re in California, Texas, Florida, New York, or anywhere else in the U.S., we can ship your electric dirt bike or e-moto directly to your home or business.
All e-motos ship from authorized U.S. distribution centers or directly from EMOTO Supply Co., ensuring safe transport, faster delivery, and full manufacturer support. Shipping costs and delivery timelines vary by model and location.
Does my e-moto come assembled?
Most e-motos and electric dirt bikes ship 80–90% assembled to protect the bike during transit.
Final assembly is simple and usually includes:
We provide model-specific setup guidance, and our team is available to assist if you have questions. Many customers complete e-moto setup in under an hour with basic tools.
Does my e-moto come with a warranty?
Yes. Every e-moto and electric dirt bike sold on electricdirtbikes.com includes a manufacturer-backed warranty.
Warranty coverage varies by brand and model but typically includes:
Because we are an authorized e-moto dealer, your warranty is fully valid in the U.S., and our team assists with any warranty claims or support needs.
Absolutely. You can speak with a real human before and after purchasing your e-moto or electric dirt bike.
Our team consists of electric dirt bike and e-moto specialists who actively sell, service, and ride these bikes. We’re available by phone, email, or live support to help you:
This is a real dealership - not a faceless drop-ship site.
How does e-moto support work after I buy?
We provide full post-purchase support for every e-moto and electric dirt bike we sell.
Support includes:
Because we operates a physical service department, we understand how to maintain and support e-motos long-term.
Are you a legitimate e-moto and electric dirt bike dealer?
Yes — electricdirtbikes.com is powered by EMOTO Supply Co., a licensed and authorized e-moto and electric dirt bike dealer.
We work directly with manufacturers and approved distributors, which means:
Every electric dirt bike and e-moto sold is backed by real support and real accountability.
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