Yoshimura R&D of America billet Motocross camshafts are designed here in the USA and then manufactured at Yoshimura Japan to exacting standards. Before the camshaft prototypes are ever sent to Japan, they undergo hours of trials and testing. This is where Yoshimura R&D works to find the perfect balance of power, efficiency, and reliability. Most Yoshimura camshafts are designed in conjunction with our racing efforts, and in turn the design gets passed down to our customers for the best power gains.
Our camshafts are CNC machine ground from the absolute finest quality Billet Bar Stock for the highest degree of strength and precision. After the blanks are machined to size, they are sent to Yoshimura Japan for special metallurgical treatments. The next steps are grinding to absolute specifications, checking meticulously for accuracy, and finally heat-treating the finished camshafts for lasting performance. While the cams are being ground in Japan, the cam sprockets are machined from high-grade Billet and run through our ISF Process for increased strength, durability, and smoother operation. After final approval, the camshafts are sent back to Yoshimura USA for final packaging and sale.
R&D designed the CRF450R camshaft with increased lift and duration to produce a potent curve with mid to top-end power & torque to accompany the power already available on the bottom end. This means when you whack open the throttle out of a corner, you'll get a nice hit off the bottom and an even bigger kick on the top end.
This Camshaft Kit is Drop-In, no shims or springs are needed.
(See Note Below for 2010 CRF450)
Part Number: 700XX225800
For the 2010 Honda CRF450R, these two Honda OEM parts are required.
DECOMP KIT (Honda PN: 06140-MEN-305)
DECOMP SPRING (Honda PN: 14106-MEN-A30)
(Sold Separately through Authorized Honda Supplier)
R&D designed the CRF250R camshaft with increased lift and duration to produce a potent curve with solid torque to red-line. This means when you whack open the throttle out of a corner, you'll get a nice hit off the bottom all the way to the top!
Part Number: 700XX228400
This kit REQUIRES Valve Spring Kits which are available separately:
WARNING: Much of the action depicted in this magazine is potentially dangerous. Virtually all of the riders seen in our photos are experienced experts or professionals. Do not attempt to duplicate any stunts that are beyond your own capabilities. Always wear the appropriate safety gear.
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