Features:
-Camshafts w/ adjustable cam sprockets
-Higher lift and longer duration than stock
-Base Circle : 27mm (STD 28mm)
-Engine rev limit can be raised up to 14,000rpm by EM Pro. (STD 13,500rpm)
-MAX LIFT (mm) : IN 10.10mm / EX 8.80mm
-1mm DURATION(°) : IN 258° / EX 250°
-Standard Tappet Clearance(mm) : IN 0.13mm / EX 0.15mm
-Timing must be degreed by professional mechanic
-May require cylinder head modification
-All cams are ground by Yoshimura Japan using truly state-of-the-art equipment
-Cams are machined from billet cam blanks, not welded up or reground stock units

NOTE: These cams are designed with smaller diameter base circle than stock. Additional tappet shims required.

NOTE: FOR 2012 GSX-R1000 Models: OEM exhaust camshaft spec has been changed from 2009-2011 to 2012, Yoshimura's race kit camshaft set is required to install with Valve spring seat shim 0.5mm/1 valve on exhaust side, and they are supplied with Yoshimura'scurrent production.

These Camshafts were designed for Closed-Course Competition only; Not intended for street use.

* Cam timing should be set by a certified mechanic to ensure proper function. Improper installation or cam timing could result in catastrophic engine failure.