Bachmann 92421 (Large Scale) Standard Metal Wheel Set (4 Per Card) Crawler Tires yet is breathable and superior

yet is breathable and superior to Lexan covers that trap heat

High-voltage 2S LiHV battery

Square-lug technology throughout the tread design

Hitec HS-85BB Premium Micro Servo

supplied unpainted so you can finish it in the color scheme of your choice

Bachmann 92421 (Large Scale) Standard Metal Wheel Set (4 Per Card) Crawler Tires yet is breathable and superiorBachmann 92421 (Large Scale) Standard Metal Wheel Set (4 Per Card) Upgrade your large scale rolling stock with Bachmann's standard metal wheel sets. Metal wheels add weight down low for better tracking, roll more smoothly than plastic, and stay cleaner longer they also help keep grime from building up on your rails. With four wheel sets per card, one pack handles a typical car. A simple swap that pays off every time you run. Four standard size metal