I put a MMax 136 skid under my VMAX700. I used a Mountain Performance relocation templet and tunnel extension kit. The ride is much better than the 121. I tried many different combinations with shocks revalved, springs and limiter straps at different settings and I thought I had the 121 riding pretty good, that is until I rode my buddies MXZ skidoo and realized there are better suspensions out there. Two winters ago I had a chance to ride a guys 136 SXr, after that 10 minute ride I was convinced this was the way to go. I converted mine the very next summer and rode it 2000 miles last year. A Yamaha 136 proaction skid is a very good suspension. I have mine set up for a soft feel but it won't bottom on hard hits. You can play with the 3 position adjuster to fine tune it. I like mine alot, handling on the trails is not compromised. You may need a little more carbide or ski pressure depending on the track you use. I went with a 1.25 camo which gives this sled awesome traction. I also added oversize wheels on the skid, no hyfax wear yet. I would definately do the kit again, actually I now wish I had done it 5 years ago.
will some body please give a repsonce on the ride of a 136!!!!!!