Crawler Tools & Guides
Free, interactive tools for dialing in your 1/10 scale crawler — built on researched data, not guesswork. Pick a tool to get started.
Geometry Calculator →
Roll center, instant center, anti-squat, and CG. Visualize your 4-link and watch how every change moves the numbers in real time.
Gearing Calculator →
Final drive ratio, overdrive %, portals, and ring & pinion — with a researched database of real transmissions and axles so you pick parts, not guess ratios.
Tire Tool →
368 beadlock tires in 1.7, 1.9 and 2.2 with published dimensions. Filter by competition class ceiling, compare any two side by side, and see where every number came from.
Guides
DIY Custom Links →
Threaded rod, a sleeve, and two rod ends — build a link at any length. The cut-length formula, how to measure your rod ends, and a full build walkthrough.
Bent Links: When and Why →
Same pivots, same geometry. What a bend actually buys you (clearance), what it costs (strength), and the one rule: bend only what touches.
4 Link vs 3 Link →
Links do two jobs: stop axle wrap, stop sideways slide. Why the triangulated four-link took over, where the Panhard still earns its keep, and why the servo is the real decision.
Gear Down, Volt Up →
Same climb, fewer amps. Why gearing and voltage only work as a pair, why crawlers cook, and why cogging is usually the ESC.
How a Servo Works →
Motor, gears, pot (or Hall). Why the horn turns, why it stops, and why some can go 360.
After Every Run →
Ten minutes after a run beats a Saturday teardown. Dirt, water, and about a year on trail-rig bearings.