Love this little trike for cruising around at the lake but it's killing my back! Time for some rear suspension. I found a YTM200 roller with a rear suspension kit but it won't fit the 125/175 frames so I'll have to modify it to fit. The 200 swingarm is way too long , so I have to shorten it. Does anyone out there have a pro-tec or S&D kit that they could measure the swingarm length? Pivot to axle. It'll probably be easiest to cut the tubes out and make a box section arm using the existing pivot tube and carrier brackets. I'll have to fab a top shock mount and chain tensioner. Get a 520 front sprocket and probably some YTM200 rear brake cables.
First step is a little frame strengthening around the swingarm pivot.