Skateboard Trucks Measurements
Size Calculator
The complete guide to skateboard trucks measurements. Enter your deck width below to instantly find compatible truck sizes from Independent, Thunder, Venture, Tensor and Ace.
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Understanding Skateboard Truck Measurements
Every truck has three key measurements. Knowing them helps you choose the right setup and get the most out of your skating.
Axle Width
The end-to-end width of the truck axle (in inches). This is the measurement that matters most. It should match your deck width as closely as possible. A truck 0.125"–0.25" wider or narrower than your deck is still fine.
Hanger Width
The aluminium T-shaped part that grinds on obstacles. Hanger width (e.g. 139mm for an Independent 139) is the number shown on most Independent-style sizing charts. Hanger width is narrower than axle width.
Truck Height (Profile)
The distance from the baseplate to the axle; Low (~46–49mm), Mid (~50–53mm), or High (~55–58mm). Height determines wheel clearance and board feel. Most brands offer the same model in multiple heights.
Low vs Mid vs High Trucks
Truck height affects your wheel size options, pop feel and board response. Use the guide below to dial in your perfect setup.
| Profile | Height Range | Best For | Wheel Size | Board Feel |
|---|---|---|---|---|
| Low | 46–49 mm | Street skating, technical tricks | 50–53 mm | Low centre of gravity, snappy pop |
| Mid | 50–53 mm | All-round, park & street | 52–56 mm | Versatile, balanced response |
| High | 55–58 mm | Vert, pools, cruising | 56–60 mm+ | More wheel clearance, cruiser feel |
FAQs
Skateboard Trucks Measurements: Frequently Asked Questions
Everything you need to know about truck sizing, measurements and how they relate to your deck.
What size trucks for an 8 inch deck?
For an 8.0" deck the most common choices are Independent 139 (axle 8.0"), Thunder 148 (axle 8.0"), Venture 5.6 (axle 8.25"), Tensor 5.5 (axle 8.0"), Ace AF1 33, Slappy 8.0, and Frux 8.0. Use the calculator above to confirm the best fit for each brand.
What do skateboard truck measurements mean?
There are three key measurements: axle width (end-to-end in inches, which should match your deck), hanger width (the T-bar that grinds, in mm, narrower than the axle) and height (Low/Mid/High, affecting wheel clearance and board feel). The number printed on most trucks, e.g. "Independent 139", refers to the hanger width in mm.
How wide should my trucks be?
Truck axle width should match your deck width as closely as possible. A difference of up to 0.25" is perfectly fine. Trucks wider than your deck cause wheel-out on tight turns; trucks narrower than 0.25" undersize feel unstable for most riders.
What is the difference between low, mid and high trucks?
Truck height (profile) is the distance from baseplate to axle. Low trucks (around 46 to 49 mm) sit closer to the ground for a snappier, more responsive feel, making them ideal for street skating with 50 to 53 mm wheels. Mid trucks (around 50 to 53 mm) are the most versatile all-rounder. High trucks (around 55 to 58 mm) give more wheel clearance for larger wheels (56 mm and above) and are preferred for vert, pools and cruising.
Are Independent or Thunder trucks better?
Both are industry leaders and the choice comes down to personal preference. Independent trucks feel stiffer and are popular for street skating; they use hanger-width sizing (129, 139, 149…). Thunder trucks are slightly lighter and have a more responsive turn out of the box; they use a different numbering system (143, 147, 149…).
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