Boivin ZX2 suspension review

[stoutner]

Thanks for the report. Mine is sitting in my shop waiting for me to install. Are the tracks rubbing due to the track being run too loose? The directions say to have 0 sag at 70 degrees?

The track will probably rub because you will only end up with about 1/8" clearance between the track and the tunnel protectors. I do think that it won't rub any more than the stock suspesion. When I pulled my track out to change my suspension, I noticed that many of my lugs were torn from hitting the tunnel protectors. Also, my tunnel protectors were very "shiny" where the track would hit. Take a look at your track and protectors when you pull it out and you will probably notice the same thing.

By the way, I wouldn't set my pre-load too high for the first ride. The suspension works great...even at the softer settings.

 

[Grimm]

I'm considering dropping my preload to lower sit in the next time out.

 

[Jeff\ADBoivin]

AD Boivin Help!

Hi guys,

Grimm when you say :

For me, my skis were lifting more in the turns than I remember from last year. Perhaps the suspension has raised the sled's center of gravity and it's a bit more top heavy? I don't know, but I'll probably play with the settings more to get it to rail more around the corners.

Lower the coupling with the revolver system, this will eliminate the ski lift. More coupling make the suspension work better in the bump. less coupling will keep the inside ski on rail for speed. it just depend of the trail condition.
You can try to to lower the front end of your vehicule i little bit, this will also reduce the coupling. don't go to low, the spring can get to loose and loose itself out.

Track clearance with the tunnel protector will be around 1/8 inch on most of the machine but you have 1,5 inch before it hit the bottom of the tunnel.
We did not experience wear or anything out of control over 15 000km. so you should also by o.k. with the clearance there. You can double check your track tension just to make sure everything is alright.
the tigh clearance is also just for a short distance, some guys that change there track to a taller one then factory machine or grind there tunnel protector just where it was close to touch. so we can do the same thing if we have to but i asure you it is not a problem, this is the mesurement for the best place to position this suspension.

 

[Jeff\ADBoivin]

don't drop the preload to much because you will seat all the time on the second stage of the G-force shocks absorber. You will lose the softness of the suspension.

just be carefull. if you run to soft, it is not smoother and the shocks package work harder. The oil will over heat and you may have to change it quicker then expected.

you can experiment at the beginning to find your right set-up!
You will see the complete potentiel of the ZX-2 later this year when the trail get really ruff !

 

[Grimm]

Thanks Jeff, I will experiment...a little bit at a time, thanks.