Shopping CartCLOSE
  • Your cart is empty.
Cylinder Works Top End Kit With Cylinder - 4-Stroke
Cylinder Works Top End Kit With Cylinder - 4-Stroke

$363.41 - $566.88
10% Off - Save up to $38.48

Item #CYW0008

Read More
Write a Review
Enter to Win $500

Write your review and you'll automatically be entered in our monthly drawing. Include an image or video to DOUBLE your chances to win!

Write Your Review Write a review to win $500
6 Questions
Answered:   5
Not Yet:   1
m3rk
Q: If i choose the higher compression piston do i need to change fuel or anything?
3 months 13 days ago
DaveGearhead
Top 10
3 months 13 days ago
A: Typically speaking, if you run any compression higher that 12:5:1 then you need to start thinking about running a higher octane fuel.
alfredo
Q: Does this fit my 2004 yz250f
1 year 6 months ago
Kevin
Q: So i checked and this kit exactly fits my bike which is a 2008 CRF250R but the kit is for a compression of 13.5-1 and my bike is 13.1-1?
1 year 8 months ago
MotoSportExpert
MotoSport Staff Expert
1 year 8 months ago
A: Slightly higher compression.. Feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
CRF250R31PRO
Q: Will this kit fit my bike with a compression ratio of 13:1-1?
1 year 10 months ago
MotoSportExpert
MotoSport Staff Expert
1 year 10 months ago
A: Yes this kit fits your 2008 Honda CRF250R. Compression would be 13.5:1. Just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct kit for your bike. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Shawn
Q: Could I get a bigger cylinder? I race and need more power
1 year 12 months ago
MotoSportExpert
MotoSport Staff Expert
1 year 12 months ago
A: Yes you can find the Athena big bore 280 kit for your 2012 Honda CRF250R here:
http://www.motosport.com/athena-big-bore-kit
Mxracer243
Q: Is this a big bore kit or a regular cylinder head
2 years 5 months ago
MotoSportExpert
Expert MotoSport Staff
2 years 5 months ago
A: This would be a Standard bore kit.
Fitment
See all bikes that this part fits...
See Fitments
# Part Numbers
Cylinder
Product Variant Manufacturer Part #
Stock Bore 30001
Stock Bore 30006
Stock Bore 50004
Stock Bore 40001
Stock Bore 10006
Stock Bore 10008
Stock Bore 10002
Stock Bore 20001
Stock Bore 20003
Stock Bore 40004
Stock Bore 20002
Stock Bore 50003
Stock Bore 40003
Stock Bore 30011
Stock Bore 50001
Stock Bore 30004
Stock Bore 10001
Stock Bore 10007
Stock Bore 10004
Stock Bore 30005
Gasket
Product Variant Manufacturer Part #
Cylinder Works Top End Kit With Cylinder - 4-Stroke C3054-EST
Cylinder Works Top End Kit With Cylinder - 4-Stroke 40003-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke C3406-EST
Cylinder Works Top End Kit With Cylinder - 4-Stroke C3268-EST
Cylinder Works Top End Kit With Cylinder - 4-Stroke C7947
Cylinder Works Top End Kit With Cylinder - 4-Stroke C7688
Cylinder Works Top End Kit With Cylinder - 4-Stroke C3511-EST
Cylinder Works Top End Kit With Cylinder - 4-Stroke C3519-EST
Cylinder Works Top End Kit With Cylinder - 4-Stroke C3047-EST
Cylinder Works Top End Kit With Cylinder - 4-Stroke C7185
Cylinder Works Top End Kit With Cylinder - 4-Stroke C3270-EST
Cylinder Works Top End Kit With Cylinder - 4-Stroke C3428-EST
Cylinder Works Top End Kit With Cylinder - 4-Stroke C3288-EST
Cylinder Works Top End Kit With Cylinder - 4-Stroke 10001-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke C3187
Cylinder Works Top End Kit With Cylinder - 4-Stroke 10002-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke C7908-EST
Cylinder Works Top End Kit With Cylinder - 4-Stroke 10004-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke 10008-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke 10007-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke C3057
Cylinder Works Top End Kit With Cylinder - 4-Stroke 10006-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke 30004-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke 50004-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke 50001-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke 30001-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke C3175-EST
Cylinder Works Top End Kit With Cylinder - 4-Stroke 30011-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke 20002-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke 50003-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke 20003-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke 40004-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke C7978-EST
Cylinder Works Top End Kit With Cylinder - 4-Stroke 20001-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke 40001-G01
Cylinder Works Top End Kit With Cylinder - 4-Stroke C3267-EST
Piston
Product Variant Manufacturer Part #
Stock Bore 13.6:1 Compression 23831B
Stock Bore 14:1 Compression 23642A
Stock Bore 13.9:1 Compression 23757B
Stock Bore 13.9:1 Compression 23567B
Stock Bore 13.9:1 Compression 23394B
Stock Bore 14.1:1 Compression 23561B
Stock Bore A Size 13.2:1 Compression 23446A
Stock Bore A Size 23641A
Stock Bore 23311B
Stock Bore 22951B
Stock Bore A Size 23445A
Stock Bore 23455B
Stock Bore 23003B
Stock Bore 22814B
Stock Bore 12.5:1 Compression 23857B
Stock Bore 23564B
Stock Bore 23510B
Stock Bore 22805B
Stock Bore 12.9:1 Compression 23456B
Stock Bore 23127B
Stock Bore 13.9:1 Compression 23458B
Stock Bore 23391B
Stock Bore 13.9:1 Compression 23515B
Stock Bore 22915B
Stock Bore 12.6:1 Compression N/A
Stock Bore 13.4:1 Compression 23113B
Stock Bore 13.2:1 Compression 23646B
Stock Bore 13.5:1 Compression 23444B
Stock Bore 11.7:1 Compression 23759B
Stock Bore 13.5:1 Compression 23550B
Stock Bore 12.5:1 Compression 23855B
Stock Bore Single Ring 13.5:1 Compression 22812B
Stock Bore 13.5:1 Compression 23961B
Stock Bore 22983B
Report an Error