How long is a 200x swingarm?

[thefox]

I bought this Westcoast swingarm not too long ago and I was just wondering if it is stock length. It is about 18" from center of the pivot bolt to center of the axle. So how long is a stock one?

[ryan250r]

My stock 200x swingarm measures 16" from center of axle to center of swingarm bolt. Hope this helps