Most guys spend their winter chasing horsepower and then wonder why the kart still pushes in the middle of the corner. Before you spend another dime on an engine, put the kart on a flat surface and check your alignment. A kart that's out of square will fight you every lap, no matter what's under the seat.
Here's the plain-spoken version of how to check toe, camber and chain alignment so you roll onto the track in the spring with a kart that goes where you point it.
Why alignment day is worth your Saturday
Dirt and outlaw karts live and die by small changes. A few hundredths of an inch of toe changes how the front end bites on entry. A little camber changes how the tire loads up in the middle of the corner. And a rear end that isn't square will pull the kart one direction down the straight and eat chain and bearings while it does it.
It's also the right time of year. If you already tore the kart down using our off-season teardown and winter storage checklist, you've got it apart and clean, which is the best moment to square everything back up.
Get the kart ready first
You can't measure a bent or loose kart and get a number you can trust. Before you touch a gauge:
- Put the kart on a flat, level surface. A garage floor with a low spot will lie to you.
- Set tire pressures where you'd run them, and sit the kart at ride height with the seat weight in it (or an equal load).
- Check the front end for slop. Worn spindles, tired king pin bolts and sloppy rod ends will move while you're measuring. Our front end and steering guide walks through what to inspect.
- Look over the hubs and wheel bearings. If a wheel wobbles on the hub, fix that first. The bearings guide covers what to replace.
Toe: what it is and how to measure it
Toe is the difference between the distance across the front of your front tires and the distance across the back of them. If the fronts are closer together than the backs, that's toe-in. If they're farther apart, that's toe-out. Look at the left half of the diagram above and you'll see the A and B measurements.
The old-school way
A tape measure and a steady hand will get you in the neighborhood. Measure across the tires at axle height, front and back, and compare. It works, but it's easy to be off a little, and a little is exactly what matters.
The easier, more repeatable way
A laser toe gauge takes the guesswork out. The Performance Mfg. Laser Toe & Digital Camber Gauge Kit mounts on the axle and gives you a clear reading, and it comes in standard wall and thin wall versions. If you already own one and run a different axle, there are separate adapters: the Laser Toe Gauge Adapter, and one made for carbon fiber sleeved axles.
Whichever method you use, do it the same way every time. Roll the kart forward and back a few feet before you measure so the tires settle, then write the number down. A setup number you didn't record is a number you'll never repeat.
Camber: lean the tire the right way
Camber is how far the top of the tire leans in or out when you look at the kart from the front. Top leaning in is negative camber, which you can see in the right half of the diagram. The adjustment lives at the camber heim joint on most front ends, so any slop there throws off your reading.
A digital camber gauge reads the angle directly, and the same kit above includes one. If your camber joints are worn or pitted, it's cheap to replace them. Browse the camber heim joints and steering spindles and swap anything that doesn't turn smooth and tight.
One tip: change one thing at a time. If you adjust toe and camber together, you won't know which one fixed (or ruined) the handling.
Don't forget the back half: chain alignment
Alignment isn't only a front end job. If the engine sprocket and the axle sprocket aren't in the same plane, the chain runs crooked. That means heat, wear, and power you paid for going nowhere. A laser makes this a two-minute check: the Sniper Chain Alignment Laser sits on the sprockets and shows you right away if the two are lined up. You can see the full lineup in the Sniper Alignment System collection.
When you're done, give the chain a look using our chain guide for sizing, tension and lube.
A simple alignment checklist
- Tear down, clean and inspect the front end, hubs and bearings.
- Replace anything worn: heims, rod ends, king pin bolts, bearings.
- Set the kart on a flat surface at race ride height.
- Measure and record toe, then camber.
- Check chain alignment between the engine and axle sprockets.
- Re-torque everything, roll the kart, and measure again to confirm nothing moved.
- Write all of it on a setup sheet for the season.
Where to start on numbers
The right toe and camber depend on your chassis, your tires, and your track. Start with what your chassis builder recommends, make your changes in small steps, and let your lap times and tire wear tell you if you're heading the right way. If you're running one of our Stealth X karts and you're not sure where to begin, call us and we'll point you in the right direction.
Frequently Asked Questions
What is toe on a kart?
Toe is the difference between the distance across the front of your front tires and the distance across the back of them. If the fronts are closer together than the backs, that is toe-in. If they are farther apart, that is toe-out.
What is camber on a kart?
Camber is how far the top of the tire leans in or out when you look at the kart from the front. The top leaning in is negative camber. On most front ends the adjustment lives at the camber heim joint.
What toe and camber should I run on my outlaw kart?
It depends on your chassis, your tires and your track. Start with what your chassis builder recommends, change one thing at a time in small steps, and let lap times and tire wear tell you if you are heading the right way.
How do I check chain alignment on a kart?
Use a chain alignment laser. The Sniper Chain Alignment Laser sits on the sprockets and shows you right away whether the engine sprocket and axle sprocket are in the same plane. It is about a two-minute check.
What do I need to do before measuring kart alignment?
Put the kart on a flat, level surface at race ride height with tire pressures set and seat weight in it. Fix any slop in the front end, hubs or bearings first, and roll the kart forward and back a few feet so the tires settle before you measure.
Get your alignment tools before the season starts
Good alignment tools pay for themselves in saved tires, saved chain, and a kart that's predictable lap after lap. Shop our kart tools and steering parts, or give the shop a call and talk to a racer who's been there. We'll help you get the right gauge for your axle and the parts to fix what you find.