2x 123mm (4-7/8") Road Crossing/Rerailer Track

and a matched factory-spec set keeps the driveline running smooth and strong

Designed as a direct fit for the TRX-4

Fine-tune the height of your elevated trackage with this five-piece height adjusting kit for Kato conical piers

(no flickering or dimming as the battery voltage changes)

Kyosho IFF001KRB Battery & Receiver Box Set (F-Red/MP10/MP9) Measurements 2x 123mm (4-7/8") Road Crossing/RerailerKyosho IFF001KRB Battery & Receiver Box Set (F Red MP10 MP9) The Battery & Receiver Box Set is a genuine Kyosho replacement part (part number IFF001KRB), sourced directly from Kyosho for owners who want factory spec fit and performance. It is designated for use with F Red, MP10, MP9, matching the exact specification called out in the Kyosho parts catalog. Keep a spare on hand so maintenance and repairs can be completed quickly without downtime.