Home
Basic Dirt Bike How-To's - Video
Dirt Bike How-To's - Video
Living The Moto Life - Video
Bike Tests | Shoot-Outs - Video
Forums
What's new
Latest activity
Log-In
Join
What's new
Menu
Log-In
Join
Navigation
Install the app
Install
More options
Close Menu
Forums
Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
High comp piston vs. std in a CRF450R
Reply to thread
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
[QUOTE="Rich Rohrich, post: 1118996, member: 16241"] The CRF450 LOVES compression, and makes great torque in the mid range with it. If the bike is jetted correctly you should be able to run pump gas all the way up to 13.5:1 compression. The exception being hot dry desert type conditions. Those dry 95+ degree days would require some help on the fuel side. Most riders can't tell the difference on the top end, but they notice the roll-on torque changes. Jetting is too bike specific to be able to say which way it will go for sure, but it is common to be able to lean the jetting a bit with an increase in compression. Overall it's money well spent. [/QUOTE]
Verification
Which ocean is California closest to?
Post reply
Forums
Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
High comp piston vs. std in a CRF450R
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top
Bottom