Wondering if honda 250r a-arms will fit a cannondale? shocks also? and does anyone know of a website for extended swingarms? thanks for your time

 

I never got a chance to check 250r but 400ex arms are a perfect fit on the early dales frame.The later ones you would need some washers at the pivot points on frame.Also the ball joint studs on the dales are bigger than the r or 400 you would need the spindles from the honda or a sleeve like lonestar uses on there cannondale arms.