Quick answer: Match your truck's axle width to your deck width. A deck around 8.0 inches wide pairs with an 8.0-inch axle (an Independent 139 or similar), an 8.5-inch deck pairs with an 8.5-inch axle (a 149), and so on. A difference of about 1/8 inch either way is fine.
Trucks are the metal parts that hold your wheels and steer the board. Get the width right and your board feels balanced and stable. Get it wrong and turning feels odd and the wheels sit too far in or too far out. If you are still choosing your first setup, start with our guide to choosing your first skateboard. This article goes deeper on trucks only.
The rule: axle width should match deck width
The axle is the steel rod that the wheels bolt onto. When the axle ends line up with the edges of your deck, the board is balanced and turns predictably. Trucks that are much wider than the deck move your centre of gravity and can feel awkward. Trucks slightly narrower than the deck are fine. Aim for the axle to be within about 1/8 inch (3 mm) of the deck width.
Why truck numbers are confusing
Truck sizes are not standardised. Brands label them differently: some use the hanger width (the thick part that houses the axle) in millimetres, others use inches, and the same number can mean slightly different axle widths in different brands. That is why axle width in inches is the number to compare. Always check the maker's size chart.
Truck size chart by deck width (Independent example)
Independent publishes a widely used chart. Other brands are similar but not identical, so treat this as a guide and check your brand.
How to measure your trucks
- Lay a tape measure along the axle and measure from the outside of one axle end to the outside of the other (axle width).
- Measure the hanger separately if you want to compare it with a brand's hanger number.
- Measure your deck at its widest point.
- Compare the two. If the axle ends sit near the deck edges, you have a match.
Truck height: low, mid or high
- Low trucks: sit closer to the deck. They feel stable and are popular for technical skating.
- Mid trucks: the common all-rounder for street and park.
- High trucks: give more clearance for larger wheels and more leverage when carving, and are often used for cruising.
Pick a height that gives your wheels room. Bigger wheels on low trucks can bite into the deck when you lean, so check clearance or use risers.
Set up your trucks for learning: tightness
Once your trucks match your deck, adjust the kingpin nut. Looser trucks turn more easily and make carving and turning easier to feel. Tighter trucks feel steadier at speed. Start in the middle: tighten until the board does not wobble, then loosen a little until a gentle lean turns it. Adjust a quarter turn at a time, and check that nuts are snug before every session.
Common truck mistakes
- Buying by the number alone without checking axle width.
- Trucks much wider than the deck because they were cheap or on sale.
- Cranking the kingpin tight so the board will not turn, then blaming technique.
- Ignoring wheel clearance when mixing wheel and truck heights.
- Skipping hardware checks so loose nuts go unnoticed.
Keep Pushing
A balanced setup is the foundation for every fundamental, from pushing and stopping to turning. Measure once, match your trucks to your deck, set them to feel right, and then spend your energy on practice. When you are ready to roll somewhere new, find spots with BUTR Spots.
Your turn: What deck width and truck size do you ride, and how did you settle on your truck tightness? Share it below.
