Powerhobby 5053 Blue Aluminum 1.9" B4 Beadlock Wheels with 9mm Hubs 4 Pack Roadname_DT&I This will allow better gear

This will allow better gear mesh for non-standard gear ratio

3x Silver Anodized Countersunk Washers

One 1-1/4" Straight Section*

Athearn Genesis G19550 HO Scale F7A Bessemer & Lake Erie B&LE 728A DCC Sound

Traxxas 3975 Titan 550 21T Motor

Powerhobby 5053 Blue Aluminum 1.9" B4 Beadlock Wheels with 9mm Hubs 4 Pack Roadname_DT&I This will allow better gearPowerhobby 5053 Blue Aluminum 1. 9" B4 Beadlock Wheels with 9mm Hubs 4 Pack Powerhobby B4 Aluminum 1. 9 Beadlock Wheels 9mm Hubs (4) 1 10 Rock Crawler FEATURES: CNC machined Aluminum wheels Anodized 9mm wheel hubs Included Scale hardware 2x6mm 12mm Hex Aluminum Rings INCLUDES: 4 Wheels with hardware