CHAPTER 19 ■ WHEELS
Table 19-2 lists some of the kits that include the 42.2 x 22 ZR wheel.Table 19-2. Some Kits That Contain 43.2 × 22 ZR LEGO Wheels
Part Number Description
4893 Revvin’ Riders
4895 Motion Power
4955 Big Rig
6752 Fire Truck
6753 Highway Transport
8140 Tow Trasher
8143 Ferrari 1:17 F430 Challenge
8156 Ferrari FXX 1:17
8166 Wing Jumper
8167 Jump Riders
8271 Wheel Loader
8292 Cherry Picker
8354 Exo Force Bike
8355 H.O.T. Blaster Bike
8365 Tuneable Racer
8547 Mindstorms NXT 2.0
8645 Muscle Slammer Bike
8652 Enzo Ferrari 1:17
8667 Action Wheelie
8671 Ferrari 430 Spider 1:17
8969 Wheeling Pursuit
9648 Education Resource Set
10196 Grand Carousel
Cleaning Tires
Before long, the tires on a robot accumulate dirt and grime. Soiled rubber doesn’t grip as well as clean
rubber. One of the secrets to winning a robot sumo contest is to wipe off the tire surface after every match.
You can remove large chunks of dirt with an old toothbrush and water. Soaking in a bit of liquid
dishwashing soap also helps.
To remove embedded contaminants, place the tires in an ultrasonic cleaner (see Figure 19-15).
Micro-Mark sells the pictured ultrasonic cleaner, item #82413, for $94.95. That particular model is fairly
small, but is satisfactory for all LEGO wheels and circuit boards up to about 7 cm by 11 cm.