a arms

[400ex_313]

on a arms what do the 2 numbers mean (ex+3+1) and what would be best for a 400ex i plan on building it up to race it:confused:

[Cole Trane]

The first number is how much wider each side will be and the last is how much further forward the wheelbase will be. It you race woods, go with +1+0 and 4-1 offset. If you ride recreation, +2+0 and stock offset 3-2. For MX use +3+0 and 4-1 offset. If you are want to race both woods and MX then get +2+0 and get a set of 3-2 rims for MX and some 4-1 offset for the woods. Hope the helps.

[400ex_313]

ya that helps alot thanks any particullar brand u would recommend

[Cole Trane]

I've had elka and have axis right now. I haven't raced the axis yet, but the elkas I would recommend to anyone. Great shock!!

[02Yellow400]

i run burgards +2 +0 on my 400 and love them. I will romp on the pretty hard and have had no problems. They hold up awesome and the quality and price are great

[Destructo]

Does the extra length cause the front travel to go down because of the extra leverage on the springs? Or do they reposition the springs/shocks so that you still get the stock height?

[Cole Trane]

No they stiffen the shock by revalving it. If you use a zero preload setup, it will be lower than stock.