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Overview
Cylinder Works Big Bore Cylinder Kit
DB Electrical is proud to offer genuine Cylinder Works Big Bore Cylinder Kits. Cylinder Works is recognized as offering the industry’s most comprehensive and performance-driven line of mechanical parts for powersports vehicles.
Cylinder Works kits are based on the idea that you should spend less time repairing and more time riding. That’s why these kits contain all the components you’ll need to complete a specific type of repair. Why waste time sourcing a part here and a part there when you can get everything in one convenient kit? The Cylinder Works team of experts sources all the parts you’ll need to complete the repair and get back in action.
OEM appearing big bore cylinder kit containing a hand matched big bore Vertex piston and top-end gasket kit. These kits offer you an affordable way to boost horsepower and increase engine displacement.
Cylinder Works Cylinder - new, not remanufactured, cast aluminum nickel silicon carbide (NSC) electroplated big bore cylinder that increases horsepower for a more exhilarating riding experience. NSC is a composite of a nickel and silicon carbide, providing an excellent wear resistant surface with oil retention capabilities. Cylinders are then diamond honed to the exact bore dimension and proper surface finish to ensure the proper ring seal and oil retention.
Vertex big bore piston – To handle the internal pressure of a four-stroke engine, Vertex’s big bore four stroke pistons are forged from the highest quality 2618 aluminum alloy for superior strength and durability. Vertex uses unique piston profiles and compression ratios, offered in A, B, C and D sizes to maximize power and performance while reducing blow-by and oil consumption. Each Vertex piston is then hand matched to fit each Cylinder Works cylinder perfectly.
Vertex big bore gasket kits – The gasket kit contains all the necessary gaskets to rebuild your top end. Kit includes head, base and exhaust gaskets, as well as O-rings, that are necessary when removing the cylinder and head during routine maintenance.
Reasons to Choose Cylinder Works Big Bore Cylinder Kits
- Benefit from Cylinder Works expertise, a respected name in the powersports industry
- Save money and time getting everything you need in one kit
- High ratings from professional engine rebuilders
Your Satisfaction is Assured – Every Product is backed by a 1-Year Warranty
DB Electrical delivers exceptional value for products that we stand behind with our total-confidence 1-year warranty. Yes, you have a full year to make sure your purchase meets your expectations.
Item Number: 21107-K01
100% Brand New Aftermarket Part From DB Electrical
Product Specs
| Item Condition | Aftermarket Part |
| Description | Big Bore Cylinder Kit |
| Compression Ratio | 8.2:1 |
| Cylinder Diameter | 52.500 mm |
| Cylinder Kit Type | Big Bore |
| Displacement | 107cc |
| Engine Type | 4-Cycle |
| Kit Includes | Cylinder, Piston Kit, & Top-End Gasket Kit |
| Notes | Uses Vertex #23628 |
Applications List
| MAKE | TYPE | MODEL | YEAR | ENGINE |
| Yamaha | Dirt Bike | YZ 85 | 2002 | 85cc |
| Yamaha | Dirt Bike | YZ 85 | 2003 | 85cc |
| Yamaha | Dirt Bike | YZ 85 | 2004 | 85cc |
| Yamaha | Dirt Bike | YZ 85 | 2005 | 85cc |
| Yamaha | Dirt Bike | YZ 85 | 2006 | 85cc |
| Yamaha | Dirt Bike | YZ 85 | 2007 | 85cc |
| Yamaha | Dirt Bike | YZ 85 | 2008 | 85cc |
| Yamaha | Dirt Bike | YZ 85 | 2009 | 85cc |
| Yamaha | Dirt Bike | YZ 85 | 2010 | 85cc |
| Yamaha | Dirt Bike | YZ 85 | 2011 | 85cc |
| Yamaha | Dirt Bike | YZ 85 | 2012 | 85cc |
| Yamaha | Dirt Bike | YZ 85 | 2013 | 85cc |
| Yamaha | Dirt Bike | YZ 85 | 2014 | 85cc |
| Yamaha | Dirt Bike | YZ 85 | 2015 | 85cc |
| Yamaha | Dirt Bike | YZ 85 | 2016 | 85cc |
| Yamaha | Dirt Bike | YZ 85 | 2017 | 85cc |
| Yamaha | Dirt Bike | YZ 85 | 2018 | 85cc |
Replaces These Part Numbers
| Yamaha | 5PA-11311-00-00, 5PA-11311-01-00, 5PA-11311-10-00 |
