I personally think that +2 would be fine on a Blaster, shouldn't need anymore than than unless your drag racing.

 

im just doing it for hill climb. I think the +3 would be alright.

 

+2

 

+2 anything more = no traction unless major motor mods...

 

Where are you getting the swing arm from. If its an SNorris swing arm (which I highly recommend) then your stock shock can still be used but if its an aftermarket swing arm I wouldnt recommend using your stock shock for very long. +3 is a great all around size to go with, thats what I have and its the best for MX and trails. +4 is a good hill shooting size though, but my +3 works well for hill shooting as well. Personally I like the +3 just because it seems to be a more universal size.

But for the type of riding you said its going to be used for I would go with the +4.

 

I think a +4 would be a little skstchy right now with the mods that I have done, but in the next few months I will hopefully be getting a 240 kit from hollywood dirt. Then it should tie everything all together.