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

IC bought four for their executive fleet

85mm Ti bumper bar 7 grams light

Will look great mounted in the fascia board on your model railroad layout

Athearn Genesis G65828 HO Scale EMD GP50 Ex Santa Fe BNSF 3200

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