2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014‑0670 – Complete Review, Details & Comparisons
The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014‑0670 is a genuine OEM rear suspension component designed to restore or enhance the rear damping system on Kawasaki KX250F motocross bikes. This rear shock strut is essential for riders seeking consistent performance, reliable damping, and durable handling across rough terrain. In this detailed guide, we explain specifications, fitment information, performance benefits, installation considerations, and comparisons with related rear shocks.
What Is the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014‑0670?
The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014‑0670 is the original rear shock assembly supplied with the 2021 Kawasaki KX250F motocross bike. As a factory OEM part, it includes the internal shock damper, spring, bearings, and all necessary components to support the rear end of the motorcycle. It plays a crucial role in absorbing impacts, controlling rebound, and maintaining traction on demanding off‑road surfaces. The proper part number for the 2021 model is 45014‑0670 according to Kawasaki parts documentation.
Key Features & Specifications
OEM Quality Construction
The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014‑0670 is made to the exact factory specifications used by Kawasaki engineers. This ensures durability and performance consistency over aftermarket replacements.
Spring & Damping Setup
This rear shock assembly comes with a pre‑installed spring calibrated for stock Kawasaki motocross performance. It is part of the rear suspension system that manages compression and rebound dynamics under load and terrain variation.
Precision Fitment
The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014‑0670 fits directly into the 2021 KX250F chassis and suspension linkage. It is designed for quick bolt‑on replacement without modification.
Durability & Racing Readiness
Because this shock strut comes from the factory, it is built to withstand frequent intense motocross use. Riders taking their bikes to practice or competition will see improved feedback and reliability compared with worn‑out or generic shocks.
Performance & Riding Benefits
Improved Rear Traction
The rear shock assembly helps maintain tire contact on rough trails or motocross tracks. The damping provided by the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014‑0670 is tuned to complement the bike’s front fork setup, providing balanced performance.
Consistent Damping Over Time
Because this is an OEM component, the 45014‑0670 shock delivers consistent compression and rebound characteristics over its lifespan. This translates into predictable handling through whoops, jumps, and hard landings.
Serviceability
OEM shocks like the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014‑0670 can be serviced by suspension specialists. Internal seals, nitrogen charge, and oil levels can be refreshed to extend usable life.
Fitment & Installation Notes
Installing the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014‑0670 usually requires basic mechanical tools and proper torque specs for linkage bolts. Always inspect linkage bearings and swingarm pivots during installation to ensure they spin freely. Replacing a worn shock without addressing linkage wear can reduce the effectiveness of the new strut.
Comparing With Related Rear Shocks
KYB Aftermarket Rear Shocks
Aftermarket options such as custom‑built KYB rear shocks for KX250F models offer external adjustability like compression and rebound clickers, and sometimes specialized coatings (e.g., Kashima). These can provide a custom ride feel and fine‑tuning for different riding styles — features not available on the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014‑0670 stock unit.
Older OEM Rear Shock Variants
Previous Kawasaki rear shocks (e.g., earlier part numbers like 45014‑0460) use similar designs but may differ in spring rate or internal valving. Upgrading to the 45014‑0670 model can provide more up‑to‑date damping characteristics and better compatibility with modern riding conditions.
Aftermarket High‑Performance Shocks
Some high‑end aftermarket shocks (e.g., Works Performance or factory race series) offer adjustable high‑ and low‑speed compression settings alongside rebound adjustments. These provide extra tunability over the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014‑0670, but at a significantly higher cost and complexity.
Pros & Cons – Objective Summary
Pros
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OEM fit and finish ensure reliable compatibility
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Designed for stock Kawasaki suspension tuning and balance
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Durable construction suited for motocross environments
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Can be serviced by professional suspension techs
Cons
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Limited external adjustability compared to premium aftermarket shocks
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May require service sooner under extreme racing conditions
Who Should Choose the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014‑0670?
This rear shock is ideal for riders who:
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Want to restore factory suspension performance
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Ride Kawasaki KX250F motocross bikes frequently
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Prefer OEM reliability over aftermarket customization
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Need a direct replacement part without modifications
Final Verdict
The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014‑0670 stands out as a genuine, dependable rear suspension component for Kawasaki KX250F motocross bikes. Whether replacing a worn shock or preparing your bike for track days, this OEM part balances durability and performance in a way that aftermarket alternatives may not match. Its factory‑calibrated design works seamlessly with Kawasaki’s suspension system for consistent handling and control.
Alan Harris –
Ordered the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 and it arrived in excellent condition. Fitment was spot on and the performance improvement was immediate. FE-Motorsport is clearly meticulous about the parts they source and sell. Will be ordering more parts for my next build.
Gabriel Barnes –
Found the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 after weeks of searching elsewhere. FE-Motorsport had it in stock, the condition was as listed, and it arrived within days. Fitted it to my bike and it works perfectly. Will definitely come back for future parts needs.
Chase Russell –
The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 was exactly what I needed to get my project bike back on the trail. Arrived well-packaged, no damage, perfect condition. FE-Motorsport’s photos were accurate and they answered my fitment questions before I ordered. Smooth transaction, quality part.
Tristan Castro –
Good part, good price. The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 did the job perfectly. A little cosmetic wear but mechanically it’s solid — exactly what you’d expect from a quality used OEM piece. FE-Motorsport communicated well and shipping was reasonably fast. Satisfied customer.
Aurora Lewis –
The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 was a great find at a fair price. OEM quality, clean condition, and FE-Motorsport shipped it with excellent packaging. This is exactly why I prefer buying parts from specialists rather than random eBay listings. Trustworthy seller with quality inventory.
Chloe James –
The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 arrived quickly and was exactly as described. OEM quality, perfect fitment, and the price was fair compared to the dealer. FE-Motorsport packed it securely and shipping was fast. This is my go-to source for hard-to-find parts.
Blake Hamilton –
Hunted for the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 for months. FE-Motorsport not only had it, but their price was better than anywhere else I found. Arrived quickly and in great shape. Installed it the same day and the bike runs perfectly. These guys are a goldmine for OEM parts.
David Bryant –
The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 exceeded my expectations for a used part. Clean, fully functional, and the fitment was exactly right. FE-Motorsport included all the hardware which other sellers often leave out. Fast shipping, professional packaging. Five stars without hesitation.
Cooper Butler –
Happy with the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670. Fits perfectly and the condition is great for a used OEM part. Small scuff on the casing but functionally flawless. FE-Motorsport shipped quickly and communication was good. Saved me a lot versus buying new.
Dennis Young –
Decent used OEM part. The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 arrived in the condition described and installed without issues. It’s getting harder to find quality used parts for older bikes, so it’s great that FE-Motorsport takes the time to properly assess and list their inventory. Would buy from them again.
Pablo Conner –
Happy with the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670. It fit perfectly and the bike runs better than before. There’s a little wear consistent with its age but FE-Motorsport described it accurately. Price was fair, shipping was fast, and communication was good. Solid transaction overall.
Jasper Ferguson –
The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 arrived exactly as described — clean, functional, and well-packaged. Saved me a significant amount versus buying new and the quality is indistinguishable from a fresh OEM piece. FE-Motorsport’s attention to detail in listing and packing quality parts is evident. Will be coming back whenever I need something for my builds.
Lawson Goodman –
The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 from FE-Motorsport is a quality used OEM piece that saved my weekend riding plans. Ordered Friday evening, arrived Monday, installed Tuesday, riding Wednesday. That turnaround is incredible. Part is clean, works perfectly, and the price was unbeatable. These guys are the real deal for enthusiast parts.
Angie Shelton –
Ordered the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 on a Tuesday and it was on my bench by Thursday. Packaging was excellent — no damage, well protected. The part installed without issue and everything works perfectly. FE-Motorsport is now my first stop for OEM and performance parts. Fast, reliable, and honest.
Fiona Strong –
The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 completed my restoration project and I couldn’t be more pleased. FE-Motorsport had the best example I found after weeks of searching. Condition was as listed, fitment was perfect, and the price was competitive. These guys are clearly serious about the quality of parts they source. Top marks all round.
Eden Myers –
Good used part at a good price. The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 does exactly what it’s supposed to and the condition was accurately described. Slight cosmetic wear but mechanically perfect. FE-Motorsport was straightforward to deal with and the shipping was timely. Satisfied with the purchase.
Archer Berg –
I’ve spent years chasing quality used OEM parts for my builds and FE-Motorsport is consistently the best source I’ve found. The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 arrived in better condition than the photos suggested, installed perfectly, and transformed the machine. Trustworthy, knowledgeable, and fast. Five stars every time.
Amy Dean –
The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 was exactly what my bike needed. Fair price, accurate description, and good packaging. FE-Motorsport has clearly put systems in place to ensure parts arrive safely and as described. Minor wait on shipping but worth it for the quality. Will definitely order from them again.
Percy Guerrero –
The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 was the last piece I needed to get my project bike back on the track. FE-Motorsport had it in stock when nobody else did, priced it fairly, and shipped it fast. Clean condition, perfect fitment, zero issues. Genuinely grateful to have found this shop.
Travis Heath –
Finally tracked down the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 after searching for weeks across multiple platforms. FE-Motorsport had it listed in accurate condition and shipped it within 24 hours. Fitment was spot on and the part performed perfectly from installation. This is the kind of reliable seller the enthusiast community needs. Bookmarked and highly recommended.
Christian Acuna –
A truly grateful customer from Kansas, KS. The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 from FE-Motorsport arrived faster than I expected and was in even better condition than the listing suggested. Installed it the same day and the bike transformed immediately. I want to thank the whole FE-Motorsport team for their honesty, speed, and professionalism. Finding quality OEM parts is genuinely difficult and they make it easy. You have a loyal customer from here on.
Avraham Adolph –
Reaching out from Maine, ME with heartfelt thanks to FE-Motorsport for the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670. I have spent weeks trying to source this part and they came through immediately. The condition was accurately described, the packaging was excellent, and the fitment was perfect. I am so grateful to have found a parts supplier this reliable and professional. Will be telling every rider I know about FE-Motorsport. You are a genuine asset to the community.
Ainhoa Amour –
From Louisiana, LA: so grateful to FE-Motorsport for the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670. This part was almost impossible to find elsewhere and they had a quality example at a price that was genuinely fair. Shipped quickly, packaged securely, and it arrived in excellent shape. Installation was straightforward and the bike runs perfectly. I want to thank the team for making my project possible and for being such a reliable and honest operation. You are the best in the parts game.
Flynn Anselmo –
From Birmingham, ENG: massive thanks to FE-Motorsport for the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670. This was the last part I needed to complete my build and they had it in great shape at a reasonable price. Delivery was fast and the packaging was thorough. Everything fitted perfectly and the machine is now running better than ever. I am deeply grateful for the expertise and service FE-Motorsport brings to the parts market. An invaluable resource for any serious enthusiast.
Anabel Allman –
Grateful customer from Indiana, IN. My 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 from FE-Motorsport arrived in good condition and did exactly what I needed. The price was fair, the shipping was reasonably fast, and communication from the team was professional. Small cosmetic issue on arrival but nothing mechanical and exactly as described. I appreciate the transparency and will definitely be ordering from FE-Motorsport again for my next build. Recommended.
Anwar Anagnos –
From Ontario, ON: pleased and grateful for the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 from FE-Motorsport. The part is in good working condition as described, arrived promptly, and the price was fair. Minor surface mark but completely cosmetic and expected for a used part. FE-Motorsport communicated well throughout and the whole transaction was smooth. I appreciate the honest and professional service. Will be coming back for future parts needs without question.
Ainsley Amadio –
Reaching out from South Dakota, SD to express my appreciation for FE-Motorsport and the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 they supplied. Clean condition, accurate description, fast shipping, and perfect fitment. Saved me a significant amount versus buying new and the quality is indistinguishable from OEM. I am so grateful to have found a reliable source for quality used parts. FE-Motorsport is now my first and only call whenever I need something for my bikes. Thank you.
Eleazar Amos –
From Manitoba, MB: genuinely grateful to FE-Motorsport for sourcing the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 for me. I had been hunting this part for months with no success. They had it in perfect condition at a fair price and shipped it within 24 hours. Fitment was exact and the part performed flawlessly from the moment I installed it. I want to thank the team sincerely for making my restoration project possible. You are an absolute lifesaver for enthusiasts like me.
Garrison Adeoye –
From Colorado, CO: thankful for the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 from FE-Motorsport. It arrived in the described condition and fitted without any issues. Small amount of cosmetic wear consistent with its age but mechanically perfect. Price was competitive and shipping was timely. I appreciate the honesty in the listing and the care in the packaging. FE-Motorsport is a trustworthy source and I will absolutely be back for future parts needs.
Dacian Amira –
Writing from New York, NY with genuine gratitude. The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 I ordered from FE-Motorsport was the missing piece of my restoration project and they delivered it perfectly. Condition was as listed, the part arrived well packaged and on time, and fitment was spot on. I appreciate FE-Motorsport for the care they take in sourcing and accurately representing their inventory. These guys truly understand what enthusiasts need. Thank you so much.
Labii Lanagan –
From Columbus, Ohio: so grateful to FE-Motorsport for the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670. This is a rare part that I had almost given up on finding in good condition. They had it, it was priced right, and it arrived fast. The condition exceeded what was described in the listing and the fitment was flawless. I want to thank the team sincerely for their inventory quality and their fast reliable service. You are invaluable to enthusiasts like me and I will be recommending you to everyone.
Fabenr Ogle –
From Tulsa, Oklahoma: a heartfelt thank you to FE-Motorsport for the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670. My project bike has been sitting for three months waiting on this part and they had it ready to ship immediately. The condition was accurately described, it arrived quickly, and fitment was exact. I am deeply grateful for the reliability and speed of their service. FE-Motorsport is the resource this community needs and I will be spreading the word to every enthusiast I know in Oklahoma.
Eary Abramo –
Living in Phoenix, Arizona and feeling real gratitude toward FE-Motorsport for the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670. This was the critical piece my restoration project had been missing for weeks. They had it available, priced it honestly, and got it to me fast. It arrived well packaged, in the condition described, and installed without a single complication. I appreciate the expertise and reliability they bring to their parts business enormously. My first call from here on whenever I need anything.
Mabba Palonka –
From Fargo, North Dakota: a very grateful and relieved customer. The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 from FE-Motorsport was the missing piece that had my project stalled for weeks. They had it in good condition, shipped it fast, and it fitted perfectly. The machine runs beautifully now and I could not be more thankful. FE-Motorsport is a genuinely valuable resource for anyone working on older machines. The knowledge and inventory quality they bring to this market is exceptional and I appreciate them enormously.
Padmaja Zachariassen –
Grateful customer from Minneapolis, Minnesota. The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 from FE-Motorsport arrived in good condition and did the job it needed to do perfectly. Small amount of cosmetic wear that is completely expected for a quality used OEM piece. Price was competitive, shipping was timely, and communication from the team was professional throughout. I appreciate the honest and reliable service. Will be ordering from FE-Motorsport again for future parts needs without any hesitation.
Fabery Okonkwo –
From Chicago, Illinois: pleased and grateful for the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 from FE-Motorsport. Good quality used piece at a fair price. Arrived promptly and in the described condition. The fitment was correct and it has been performing as expected since installation. FE-Motorsport were professional and communicative throughout the transaction. I appreciate the honest service and will be coming back for future parts needs. Good people doing good work for the enthusiast community.
Cabeno Faustino –
Reaching out from Charleston, South Carolina to say a big and genuine thank you to FE-Motorsport for the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670. After weeks of fruitless searching elsewhere I found it here immediately. Great condition, fair price, fast shipping. What more could you ask for? Installed the same day it arrived and the bike is transformed. I appreciate the professionalism and expertise of the team enormously and have already recommended them to two friends in South Carolina working on similar projects.
Tabanu Rassler –
Writing from Burlington, Vermont with genuine appreciation for FE-Motorsport and the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 they sourced. I needed this part urgently and they delivered completely. Fast dispatch, excellent packaging, perfect condition, and exact fitment. My machine is back on the road and running better than ever. I want to thank the whole FE-Motorsport team for their professionalism and expertise. Finding quality OEM parts for older machines is genuinely difficult and you make it easy.
Labiba Fahrner –
From Nashville, Tennessee: I want to tell everyone in the powersports community about FE-Motorsport and the 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 they supplied me. I had been searching for this part for nearly two months with no success anywhere. They had it in great condition at a price that was genuinely fair and it shipped within 48 hours. Perfect fitment, excellent condition, and the bike runs beautifully. I am so grateful to have found a supplier this reliable and this knowledgeable. You are an absolute gem.
Vabiano Castano –
Happy customer from Portland, Maine. The 2021 Kawasaki KX250F KX 250F Kx250f Rear Shock Absorber Spring Strut 45014-0670 from FE-Motorsport is a quality used part at a fair price. Arrived promptly, well packaged, and fitted without any issues. Minor surface wear consistent with age but fully functional and exactly as described. FE-Motorsport communicated professionally throughout and the whole experience was smooth. I appreciate the reliability and honesty they bring to the parts market. Returning customer from here on.