Athearn 25745 N Scale 4-6-6-4 Challenger w/Coal Tender UP 3997 DCC & Sound Roadname_Sounder - SDRX then the Badlands tires are

then the Badlands tires are the answer for you

and ranging in thickness from 1/64th of an inch to 1/4th of an inch

Treal Aluminum 7075 Rear Inner Portal Cover Housing and Portal Drive Axle Mounts (2) pcs for Traxxas TRX-4

Vollmer 3856 HO Scale Milk Collection Shed with Wood Platform

Athearn 25745 N Scale 4-6-6-4 Challenger w/Coal Tender UP 3997 DCC & Sound Roadname_Sounder - SDRX then the Badlands tires areAthearn 25745 N Scale 4 6 6 4 Challenger w Coal Tender UP 3997 DCC & Sound In the spring of 1941 UP locomotive designers began working on a locomotive to team up with the new 4 8 8 4 Big Boy's then under construction at Alco. The Big Boy's were designed to pull heavy freights up the Wasatch Range in Utah to the division point at Green River, WY. What was needed was a locomotive to take over at that point that could speed the freights eastward across