Custom A-Arms

Why geometry matters more than strength.

A pair of MEC-CON-fabricated A-arms ready for installation

Built for your bike, your riding, your geometry

Most of the people who reach out to MEC-CON start with the same question: can you build me A-arms for my bike? Yes.

Every set we build is custom. Your platform, your discipline, your goals. We don’t ship off-the-shelf A-arms. There is no off-the-shelf A-arm here.

What stock A-arms can’t do

A stock A-arm is engineered for the bike it shipped on, ridden the way most owners ride it. Push past that envelope — sand, hard cornering, big jumps, race-pace tree-lining — and stock geometry gets unpredictable.

The rear breaks loose where you don’t want it to. The front-end load shifts wrong. You correct, the bike fights, you correct again, and that’s the lap time.

You can’t fix that with a stronger stock A-arm. You fix it by changing the geometry.

What we do differently

Geometry first

We design the A-arm against the load case you actually ride — your stance, your travel, your suspension valving, your discipline. The dimensions follow the geometry, not the other way around.

Materials second

High-grade chromoly. CNC cutting where precision matters. TIG welded by hand. Every joint inspected before it leaves the bench.

One at a time

Every A-arm is built one at a time. Not stamped, not assembled from a parts bin, not shipped from a warehouse. Built for the bike that’s actually going to run them.

What a single-variable change does

Corey Blakesley — a sand rider who’d run OEM components for years — swapped only his swingarm to a MEC-CON unit. Nothing else changed. Same suspension, same wheels, same engine, same tires, same rider.

“With the stock swingarm I couldn’t really push too hard or the rear end would get loose and unpredictable. Now I can push the rear end a lot harder and the bike feels like it’s on rails. The only change I made is the swingarm. I’m over 50 hours in on the swingarm now and not one issue.”— Corey Blakesley, sand rider

That’s what a single, well-designed change to chassis geometry does. Read the full case study →

Start your A-arm build

Every set of A-arms starts with a scheduled consult call with Mike. $150 deposit — fully refundable, applied to the build.