Cam Shaft review
"If you’re not mechanically inclined I would not recommend this cam. You need a have a pulling tool to get out the cam rocker sleeves. Needs a little bit of heat. Also you need to take the existing bearing off the original cam and retainer. That also takes some heat, a table vice and a friend. Once you get that installed onto the new cam the installation is pretty easy. TTR110 is much harder to work on than a xr/crf70 or klx110. Definitely gained a lot of performance low to mid power, definitely worth the cost. 4 stars for difficult install."