Accurate, round shaft to improve performance,
No burrs and crimp marks, eliminating tedious work
Axle head is slightly and accurately beveled to minimize contact with the outside wheel hub
Axle head is round and centered on the axle shaft
Shaft is polished to 3,000 grit.
Two axles are bent at 2.5 deg (for rear wheels), one axle is bent at 1.5 deg (for front dominant wheel), and one axle is straight (for raised wheel).
Three bent axles are slotted to simplify alignment adjustment using a flat-blade screwdriver.
Gently wipe off the axles with a soft cloth, then lubricate with good quality graphite (we recommend Max-V-Lube) or with Krytox 100.
Mount the wheels and axles on the car. The front dominant axle should be angled down and the gap set to the normal 30 thousandths. The rear axles should be angled up and gapped twice as wide as the front axles.
Roll the car gently back and forth on a smooth surface and watch the rear wheels. They should stay on the nail head regardless of the direction of travel. If a rear wheel moves to the car body, slightly rotate that axle (use a flat blade screwdriver with a gap gauge in place) and test again. Repeat until both wheels stay on the axle head.
To adjust the front steering, an alignment board is required. The car should drift towards the raised wheel about 5 inches over 8 feet.
For more information on alignment boards and aligning, refer to the article on rail-riding posted Here