CYLINDER WORKS
Cylinder Works Cylinders, Piston Kits, and Gasket Sets at JJ Motorsports
Cylinder Works, founded in 2000 by Ron Hamp—who previously worked for leading motorcycle manufacturers—has established itself as a premier brand in the powersports industry, specializing in high-quality cylinder kits for dirt bikes, ATVs, and UTVs. With a focus on reliability, durability, and easy installation, Cylinder Works uses advanced technologies and materials to provide direct OEM replacements and performance upgrades that enhance engine efficiency and power for both professional racers and amateur riders.
At JJ Motorsports, we offer a comprehensive selection of Cylinder Works products, including 66.4mm Cylinders for Yamaha YZ250 to maintain optimal compression, Standard Bore Cylinder Kits for Kawasaki KRT750 Teryx4 for seamless replacements, and High Compression Cylinder Kits to boost performance. Whether you're rebuilding an engine or upgrading for more power, Cylinder Works delivers precise-fit solutions compatible with major brands like Yamaha and Kawasaki. Explore our inventory to find the ideal parts for your vehicle.
Key features of Cylinder Works products include big bore kits for increased displacement, standard bore kits for maintaining original specs, and complete kits with pistons, rings, wrist pins, circlips, and gaskets for easy assembly. Shop now and elevate your powersports experience with Cylinder Works!
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Cylinder Works Big Bore Cylinder Kit CRF 450 R 2017-2018 11010-K01
CYLINDER WORKS
$886.95If you're looking to unlock genuine performance gains from your CRF 450 R without compromise, the Cylinder Works Big Bore Kit delivers measurable improvements in displacement, combustion efficiency,...09310715- SKU:
- 09310715
- Availability:
- Ships Same Business Day
- Weight:
- 4.25 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- DISPLACEMENT:
- STANDARD
- OVERBORE METRIC:
- +3.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 99.00 MM
- RIDING STYLE:
- OFF-ROAD
- CYLINDER DIAMETER:
- 99,00 MM
- ENGINE TYPE:
- 4-CYCLE
$886.95 -
Cylinder Works Standard Bore Cylinder Kit for 2016-2018 KTM 350 SX-F 50007-K01
CYLINDER WORKS
$888.95If your 2016-2018 KTM 350 SX-F is showing signs of wear—loss of compression, increased blow-by, or declining power delivery—a fresh cylinder kit is the most direct path to restoring race-ready...09310721- SKU:
- 09310721
- Availability:
- Ships Same Business Day
- Weight:
- 3.50 LBS
- CYLINDER DIAMETER METRIC:
- 88.00 MM
- COMPRESSION RATIO IMPERIAL:
- 14.0:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 88.00 MM
- CYLINDER DIAMETER:
- 88,00 MM
- STYLE:
- STANDARD
- ENGINE TYPE:
- 4-CYCLE
$888.95 -
Cylinder Works Cylinder Kit Husqvarna FC 350 2016-2018 50007-K01HC
CYLINDER WORKS
$834.95A worn or damaged cylinder compromises your FC 350's power delivery and reliability—especially in competitive or high-mileage applications. The Cylinder Works kit delivers a complete,...09310722- SKU:
- 09310722
- Availability:
- Ships Same Business Day
- Weight:
- 3.55 LBS
- CYLINDER DIAMETER:
- 88,00 MM
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER DIAMETER METRIC:
- 88.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 88.00 MM
- COMPRESSION RATIO IMPERIAL:
- 15.1:1
- STYLE:
- STANDARD
$834.95Qty in Cart: 0Quantity:Price:$834.95Subtotal: -
Cylinder Works Big Bore Cylinder Kit for 2016-2018 KTM 350 SX-F 366cc 14.0:1 Compression 90mm 51007-K01
CYLINDER WORKS
$866.95If you're running a 2016-2018 KTM 350 SX-F and want measurable gains in peak power and mid-range response without a complete engine rebuild, this big bore kit delivers. By stepping displacement from...09310723- SKU:
- 09310723
- Availability:
- Ships Same Business Day
- Weight:
- 3.45 LBS
- CYLINDER DIAMETER:
- 90,00 MM
- DISPLACEMENT:
- STANDARD
- ENGINE TYPE:
- 4-CYCLE
- OVERBORE METRIC:
- +2.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- COMPRESSION RATIO IMPERIAL:
- 14.0:1
- CYLINDER DIAMETER METRIC:
- 90.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- STYLE:
- BIG BORE
$866.95Qty in Cart: 0Quantity:Price:$866.95Subtotal: -
Cylinder Works Rear Cylinder Kit Kawasaki KVF750 Brute Force 2015-2020 30008-K02
CYLINDER WORKS
$639.95If you're running a Kawasaki KVF750 Brute Force, cylinder wear directly impacts power delivery, fuel efficiency, and overall reliability. The Cylinder Works Rear Cylinder Kit restores your engine to...09310611- SKU:
- 09310611
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- COMPRESSION RATIO IMPERIAL:
- 9.3:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER METRIC:
- 85.00 MM
- PRODUCT NAME:
- REAR CYLINDER KIT
- UNITS:
- KIT
- CYLINDER DIAMETER:
- 85,00 MM
- DISPLACEMENT:
- 749 CC
- RIDING STYLE:
- ATV
- ENGINE TYPE:
- 4-CYCLE
- STYLE:
- STANDARD
$639.95Qty in Cart: 0Quantity:Price:$639.95Subtotal: -
Cylinder Works Standard Bore Cylinder Kit for Polaris RZR XP 1000 2014-2015 60003-K02
CYLINDER WORKS
$1,093.95When your RZR XP 1000 demands more power and reliability, a worn or damaged cylinder becomes the bottleneck to peak performance. The Cylinder Works Standard Bore Kit delivers a direct bolt-on...09310618- SKU:
- 09310618
- Availability:
- Ships Same Business Day
- Weight:
- 9.85 LBS
- CYLINDER DIAMETER:
- 93,00 MM
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER METRIC:
- 93.00 MM
- DISPLACEMENT:
- 999 CC
- UNITS:
- KIT
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
$1,093.95 -
Cylinder Works CRF 450 R 2013-2016 Standard Bore Cylinder Kit 10006-K02
CYLINDER WORKS
$717.95When your CRF 450 R's original cylinder shows signs of wear—scoring, loss of compression, or increased blow-by—a quality rebuild kit is your path back to reliable power delivery. The Cylinder Works...09310489- SKU:
- 09310489
- Availability:
- Ships Same Business Day
- Weight:
- 4.45 LBS
- DISPLACEMENT:
- 449 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 96,00 MM
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- STYLE:
- STANDARD
$717.95Qty in Cart: 0Quantity:Price:$717.95Subtotal: -
Cylinder Works Yamaha YFM700R Raptor 2006-2014 Standard Bore Cylinder Kit 20004-K01
CYLINDER WORKS
$842.95When your YFM700R's original cylinder shows signs of wear or you're ready to unlock additional displacement, the Cylinder Works Standard Bore Kit delivers a complete, bolt-on solution without...09310379- SKU:
- 09310379
- Availability:
- Ships Same Business Day
- Weight:
- 8.34 LBS
- PRODUCT NAME:
- CYLINDER KIT
- COMPRESSION RATIO IMPERIAL:
- 9.2:1
- CYLINDER DIAMETER:
- 102,00 MM
- CYLINDER DIAMETER METRIC:
- 102.00 MM
- UNITS:
- KIT
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- DISPLACEMENT:
- 686 CC
- STYLE:
- STANDARD
- ENGINE TYPE:
- 4-CYCLE
- RIDING STYLE:
- ATV
$842.95 -
Cylinder Works Standard Bore Cylinder KTM 65 SX 2009-2022 50005
CYLINDER WORKS
$631.95Upgrade your engine with the Cylinder Works Standard 50005, a high-performance, ready-to-install direct bolt-on cylinder. Engineered for durability and precision, this cylinder offers a seamless fit...09311015- SKU:
- 09311015
- Availability:
- Ships Same Business Day
- Weight:
- 2.51 LBS
- ENGINE TYPE:
- 2-CYCLE
- STYLE:
- STANDARD
- CYLINDER DIAMETER:
- 45,00 MM
- CYLINDER DIAMETER METRIC:
- 45.00 MM
- UNITS:
- EACH
- PRODUCT NAME:
- CYLINDER
- RIDING STYLE:
- OFF-ROAD
$631.95 -
Cylinder Works Standard Bore Cylinder Yamaha YFZ450R 2009-2024 20003-1
CYLINDER WORKS
$410.95Experience unparalleled performance with the CYLINDER WORKS Standard Cylinder 20003-1. This ready-to-install, direct bolt-on cylinder is designed for seamless integration, requiring no re-plating and...09311016- SKU:
- 09311016
- Availability:
- Ships Same Business Day
- Weight:
- 3.46 LBS
- ENGINE TYPE:
- 4-CYCLE
- STYLE:
- STANDARD
- CYLINDER DIAMETER:
- 95,00 MM
- CYLINDER DIAMETER METRIC:
- 95.00 MM
- PRODUCT NAME:
- CYLINDER
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$410.95 -
Cylinder Works High Compression Cylinder Kit Yamaha YZ250F 2001-2007 20002-K01HC
CYLINDER WORKS
$750.95Elevate your engine's performance with the Cylinder Works High Compression Cylinder Kit. Designed for easy installation, this kit combines advanced engineering with premium materials to deliver...09310296- SKU:
- 09310296
- Availability:
- Ships Same Business Day
- Weight:
- 3.33 LBS
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- HIGH COMPRESSION
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 77,00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 77.00 MM
$750.95Qty in Cart: 0Quantity:Price:$750.95Subtotal: -
Cylinder Works Big Bore Gasket Kit for Yamaha YZ250 1999-2020 21009-G01
CYLINDER WORKS
$113.95When your YZ250's stock cylinder reaches its limits, a big bore kit is the direct path to increased displacement, improved throttle response, and measurable power gains. The Cylinder Works 21009-G01...09344757- SKU:
- 09344757
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
- STYLE:
- BIG BORE
- PRODUCT NAME:
- GASKET KIT
$113.95Qty in Cart: 0Quantity:Price:$113.95Subtotal: -
Cylinder Works Standard Bore Cylinder Kit for Polaris ACE 900 EPS 2016 60004-K02
CYLINDER WORKS
$1,060.95When your Polaris ACE 900 EPS starts showing signs of wear or you're looking to restore factory performance, a quality cylinder kit is essential. The Cylinder Works Standard Bore Cylinder eliminates...09310734- SKU:
- 09310734
- Availability:
- Ships Same Business Day
- Weight:
- 9.91 LBS
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER METRIC:
- 93.00 MM
- STYLE:
- STANDARD
- UNITS:
- KIT
- CYLINDER DIAMETER:
- 93,00 MM
- DISPLACEMENT:
- STANDARD
- RIDING STYLE:
- UTV
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER
$1,060.95Qty in Cart: 0Quantity:Price:$1,060.95Subtotal: -
Cylinder Works Standard Bore Cylinder Kit for Polaris RZR 900 2015-2016 60004
CYLINDER WORKS
$672.95The stock cylinder in your Polaris RZR 900 can wear rapidly under aggressive riding conditions, leading to power loss and increased friction. The Cylinder Works Standard Bore Cylinder Kit restores...09310733- SKU:
- 09310733
- Availability:
- Ships Same Business Day
- Weight:
- 7.15 LBS
- CYLINDER DIAMETER METRIC:
- 93.00 MM
- UNITS:
- EACH
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER
- CYLINDER DIAMETER:
- 93,00 MM
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
$672.95 -
Cylinder Works Standard Bore Cylinder Kit Yamaha YFZ450R 2009-2017 20003-K02
CYLINDER WORKS
$788.95When factory wear compromises your YFZ450R's performance, a stock cylinder rebuild often leaves you with mediocre results and unnecessary machine shop costs. The Cylinder Works Standard Bore Kit...09310376- SKU:
- 09310376
- Availability:
- Ships Same Business Day
- Weight:
- 4.70 LBS
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- UNITS:
- KIT
- STYLE:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 95.00 MM
- DISPLACEMENT:
- 449 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- COMPRESSION RATIO IMPERIAL:
- 12.1:1
- CYLINDER DIAMETER:
- 95,00 MM
- RIDING STYLE:
- ATV
$788.95 -
Cylinder Works Standard Bore Cylinder Kit Yamaha YFM700 Grizzly 2007-2013 20104-K01
CYLINDER WORKS
$842.95If you're running a Yamaha Grizzly 700 and want measurable gains in power delivery and engine longevity without the complexity of custom machine work, this Cylinder Works kit delivers the bore...09310374- SKU:
- 09310374
- Availability:
- Ships Same Business Day
- Weight:
- 8.40 LBS
- COMPRESSION RATIO IMPERIAL:
- 9.2:1
- CYLINDER DIAMETER:
- 102,00 MM
- CYLINDER DIAMETER METRIC:
- 102.00 MM
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- DISPLACEMENT:
- 686 CC
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
$842.95 -
Cylinder Works Big Bore Cylinder Kit Yamaha YZ85 2002-2018 103.5cc 21007-K01
CYLINDER WORKS
$885.95If you're running a stock YZ85, you're leaving performance on the table. This big bore kit delivers a measurable increase in displacement and power output without requiring machine work or custom...09310346- SKU:
- 09310346
- Availability:
- Ships Same Business Day
- Weight:
- 3.60 LBS
- COMPRESSION RATIO IMPERIAL:
- 8.2:1
- ENGINE TYPE:
- 2-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- DISPLACEMENT:
- 103.5 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 52.50 MM
- CYLINDER DIAMETER:
- 52,50 MM
- OVERBORE METRIC:
- +5.00 MM
$885.95Qty in Cart: 0Quantity:Price:$885.95Subtotal: -
Cylinder Works Suzuki RM-Z250 2010-2012 Standard Bore Cylinder Kit 40004-K01
CYLINDER WORKS
$704.95When your RM-Z250 cylinder shows signs of wear—scoring, loss of compression, or increased blow-by—a factory replacement often means sending your engine out for expensive machine work and re-plating...09310343- SKU:
- 09310343
- Availability:
- Ships Same Business Day
- Weight:
- 3.25 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.4:1
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- STANDARD
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 77,00 MM
- PRODUCT NAME:
- CYLINDER KIT
- UNITS:
- KIT
$704.95 -
Cylinder Works Kawasaki KX250F 2009 Standard Bore Cylinder Kit 30004-K01
CYLINDER WORKS
$679.95A worn or damaged cylinder compromises both power delivery and reliability—especially critical on a high-strung 250F that demands precision. This bolt-on Cylinder Works kit restores your engine to...09310277- SKU:
- 09310277
- Availability:
- Ships Same Business Day
- Weight:
- 3.15 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.2:1
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- STYLE:
- STANDARD
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 77,00 MM
- PRODUCT NAME:
- CYLINDER KIT
- UNITS:
- KIT
$679.95
