These are sold in quantities as few as four
If you're not sure which size to use for IHC/AHM/Rivarossi replacements, there is a sample pack available that contains two each of RTW 900259, RTW935248, and RTW935259 to help you to figure out which wheel is right for you!
If you're not sure which size to use for freight, there is a sample pack of each of the 33" wheels available for purchase, as well.
Roll-Tru Scale Models is proud of its wheels. Designed for perfect balance, sizing, and rollability, these wheels will satisfy any HO scale modeler since they were designed to satisfy the founders of the company who are, indeed, perfectionists when it comes to their modeling. In other words, Roll-Tru sells what they use!
There are five sizes to choose from, which should satisfy the needs of most modelers, particularly those wanting to roll with the tru-est wheels available! All wheels are turned from solid brass, plated in nickel, and then the nickel is blackened. In order to ensure perfect balance, the decision was made to design these wheels to be dual insulated. Each side has an insulator so that they're balanced across the entire axle, improving rolling performance. Also, if the wheels need to be sized for whatever reason, both wheels can be adjusted in order to maintain this balance.
There are three models designed specifically to replace all IHC, AHM, and Rivarossi wheels, including the pizza cutter-flanged 30 inch wheels.
In order to determine the proper size you'll need, please consult this document:
Sizing chart:
| Model | Size in Scale | Real Size
Metric
Imperial | Notes |
| RTW900259 | 30" | 9.0mm x 25.9mm
.354" x 1.02" | Replaces the old Rivarossi
/IHC/AHM Pizza Cutter
metal wheels |
| RTW935248 | 31.75" | 9.35mm x 24.8mm
.368" x .976" | Replaces many Rivarossi
/IHC/AHM plastic wheels
and some metal wheels |
| RTW935259 | 31.75" | 9.35mm x 25.9mm
.368" x 1.02" | Replaces many Rivarossi
/IHC/AHM plastic wheels
and some metal wheels |
| RTW950248 | 33" | 9.5mm x 24.8
.374" x .976 | Standard freight wheel for
many manufacturers,
including Tyco and others. |
| RTW950256 | 33" | 9.5mm x 25.6mm
.374" x 1.006" | Standard freight wheel for
many manufacturers. |
Perfectly balanced, perfectly sized, these will roll true for the lifetime of your freight and passenger cars and probably more.
On top of it all, since Roll-Tru is run by modelers for modelers, the company sought to fill a need that couldn't be filled anywhere else. In this particular case, Roll-Tru's modelers had many IHC, AHM, and Rivarossi passenger cars with those terrible plastic wheels and couldn't find acceptable metal wheels to fill in. Well, Roll-Tru solved this problem by creating the exact wheels necessary to directly replace the plastic horrors that have quickly filled the trashbins of modelers worldwide.
Testimonials:
"Very impressive! the wheels are perfect, wayyy better than Walthers Protos for retrofitting Tyco trucks. I like the whizzing sound the cars now make when going fast. absolutely no derailing-even with misaligned rail or rail gaps. Cars pull way easier- less drag. you notice the cars don't wiggle or tremor anymore and float solidly like a real rail car! I can't believe all the improvements I've seen just by replacing the wheels. Good job ... I'll be ordering another bag. [Roll-Tru] wheels solved the car derailing problem and work very well with my 3D printed track too! thanks again."
--Randy
