Lower cam chain sprockets..

On the newer 450s and Wrs is the lower cam chain sprocket replaceable ??

I have an 01 426..I was going to do my cam chain soon..and I understand this sprocket cannot be replaced without replacing the whole crank..Im not having any problems, but as far as I know this cam chain was never replaced.

Just curious..Thanx..

As far as I know the 450's are the same design as the 426's.

The 450's have an integral sprocket, same as the 426.

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