SKU: 3968979646

Sirris F43 CMX Front Fork for Surron LBX | E Ride Pro S / SS 2.0

$1458.90 $1621.00
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Description

Sirris F43 CMX Front Fork for Surron LBX | E Ride Pro S / SS 2.0RIDE IT ONCE. REGRET EVERYTHING ELSE. F43 CMX THE WORLDS BEST COMPACT E MOTO FORK. PERIOD. 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. Its that good. Bike Fitment: Surron LBX Surron LBS E Ride Pro S E Ride Pro SS 2. 0 SPRING

RIDE IT ONCE.
REGRET EVERYTHING ELSE.

F43 CMX

THE WORLD’S BEST COMPACT
E-MOTO FORK. PERIOD.

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:

  • Surron LBX
  • Surron LBS
  • E Ride Pro S
  • E Ride Pro SS 2.0

SPRING RATE CHART:

Sirris offers two weight ranges when selecting your CMX Tune F43 fork for Surron Light Bee X (LBX). (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 = 3.6/3.2 springs)
180 lbs - 220 lbs  (Heavy = 3.6/3.6 springs)
Fork spring rates listed above are left side/right side.

Installation Guide:

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, 2 color options (blue, black)
Optional drop clamp allows for 21” front wheel conversion (black only)

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

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 3968979646

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4.6 ★★★★★
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Nicole Ambrosio
Natrona Heights, US
★★★★★ 5
Jack Morgan has stolen my heart!
Format: Kindle
If you know me, then you know one of my absolute favorite series is the Seattle Scorpions. When I heard we were going to be getting a new series, and that Jack Morgan would be the star of book1, I was so excited. Well let me tell you, Ruth herself delivered in every single aspect, did not hold back, and made me fall so in love with the New York Blades. There's nothing like a King who is obsessed, worships the ground she walk on, loves with all of his heart and I am so feral for him. From the beginning the chemistry was on point between Jack & Kendra, their connection, the banter and sass was just so delicious and beautiful and I couldn't get enough. I just absolutely loved everything that they are, from the way that Jack was so down bad for her but also still raw and vulnerable from his family traumas to the way that Kendra is this fiery, fierce, independent queen, but she's also raw and passionate and vulnerable and beautiful. After her last relationship, she's numb, used to not being treated like she matters, and it's through the love, patience and treatment that Jack gives her that she learns to open up her heart and find her true place. Together they are so beautiful and bold and I am obsessed with them. The spice is also spicing, its hot and raw and steamy and everything and more. Plus, just as is with these teams, the banter and chemistry of the players is on fire. We meet many of Jack's teammates and let me tell you, I already know based of the jokes, the banter and the level of sass that I am going to absolutely love them. We also get some cameos from our favorite Scorpions, and the found family in them makes my heart melt. I can not tell you how much I love Ruth's stories, these characters are so beautiful and funny and have so much depth and passion and I cannot get enough of them!! I can not wait to see what's next for the New York Blades!!
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Reviewed in the United States on March 6, 2025
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Verified Purchase
Amalie
Los Angeles, US
★★★★★ 4
this book is totally worth picking up!
Format: Kindle
Perfect Deke was such a fantastic surprise! I didn’t know what to expect going in, but Ruth Stilling absolutely delivered a fun, emotional, and swoon-worthy ride. From the very first chapter, I was hooked. The characters, the chemistry, and the blend of humor and heart had me coming back for more. Deke is everything you want in a book boyfriend—charming, protective, and a little bit rough around the edges. But what really stood out to me was how multi-dimensional he was. Sure, he has that tough exterior, but there’s a lot more going on underneath, and I loved peeling back those layers. And let’s not forget the heroine—she was smart, strong, and had a fire to her that I really admired. The dynamic between them was electric, with that perfect mix of banter and deeper emotional connection. The plot was full of twists and turns, and the romance built up so nicely without feeling rushed. There were moments of tension, but also a lot of lightheartedness that made it such an enjoyable read. I appreciated how the author balanced those heavier moments with some real laugh-out-loud scenes, which gave the book a great flow. Perfect Deke really had it all—great characters, chemistry, and a plot that kept me turning the pages. It’s definitely a strong start to the Blade Kings series, and I’m looking forward to seeing where it goes next. If you're into swoon-worthy romances with a mix of humor, heart, and some spicy moments, this book is totally worth picking up! ⭐⭐⭐⭐ (4/5)
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Reviewed in the United States on March 16, 2025
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Amazon Customer
Omaha, US
★★★★★ 3
good spice, poor banter
Format: Kindle
This definitely scratches the itch, but doesn’t offer a ton in terms of plot. The conflict that arises towards the end is weak at best, so if you are a fan of no third act breakup, this could be a good fit. He never really reads as British, but maybe the audio book would be a better option, if an accent does it for you.
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Reviewed in the United States on January 22, 2026
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Gabriella Conley
Natrona Heights, US
★★★★★ 5
oh my stars was this book everything i wanted and more!
Format: Kindle
The book follows Kendra Hart, an American soccer player, who is in a relationship with Tyler (who cares what his last name is he sucks). But they break up and Tyler isn’t happy about that (because he sucks). That’s when our favorite man, Jack Morgan, can sweep in and fake date her to help her get Tyler off his back. Here’s the drama though, Tyler and Jack used to be rivals in college and now they play for the same NHL team. Jack has had a secret crush on Kendra for years and he doesn’t plan to keep their relationship fake!! Kendra is just one of my favorite FMCs to date! throughout the whole book she is nothing but loyal and compassionate to all the people around her and she has no idea that her jack wang ex boyfriend was actually the worst until Jack! Jack who has cared about her for years and wants to do everything to help her see how she should be loved! the parking lot comment killed me and i felt like a true ache in my chest! and the third act moment i wish we got to see the rest of the context of the texts because i was just as shocked as Kendra (props to Ruth’s writing!! i was literally gobsmacked) but Jack explains it so no issue there really! the spice was perfect! literally all around i found this book to be amazing! I think each and every one of Ruth’s books have gotten better and better and that makes me so excited because this book kind of set up the next 2 in the series and i am ON MY KNEEEEESSS PRAYING for a Darcy and Archer book! i love the long term commitment girl with the playboy! its such a fun trope and Liam has been known to make Darcy cry, feel like she’s too much, he kinda monopolizes her time, and reminds me of Elliot who I also hope Darcy gets away from! i’m also excited to see the tropes of the next book because he’s a single dad and she floats around for work but she works in motorcycle shops so i’m not sure if a nanny trope will be there (this is assuming the next book is about Colin which i hope it is!!) Thank you so much to Ruth Stilling and her team for allowing me to read this ARC! I had the best time reading it! :)
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Reviewed in the United States on July 25, 2025
K
Verified Purchase
Kerri
Massapequa, US
★★★★★ 4
A great hockey romance
Format: Kindle
This was a great hockey romance. Jake is a rookie NHL player who has secretly liked Kendra, a pro soccer star, since college. Kendra ends up without a place to live, so Jake steps in to help. He moves her in. They try to keep it inconspicuous to deter her ex and the team vibe. When her ex, Jake's teammate and rival, won’t leave her alone, Jake steps in to fake date her. I loved how much Jake adores Kendra. He’s supportive, protective, and says the sweetest things to her. Kendra is tough and confident, but you also see her softer side with Jake. Their friendship is strong before anything romantic happens, which makes their connection feel real. The fake dating, forced proximity, and “he falls first” tropes are done really well. There are lots of swoony moments, fun banter, and just enough drama to keep things interesting.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 5, 2025

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