or driving 1/12th scale on-road racers and 1/18th scale rock crawlers

186mm (7 5/16") double track straight sections

International style

Tekno RC TKR4187 "M5" 5mm Bore Mod 1 Pinion Gear (27T)

coreless HS-7245MH servo delivers exceptional speed and torque in a compact package

Kato 2-230 HO Scale 670mm (26 3/8") Radius 22.5º Curve Track [4 pcs] UniTrack N Sets or driving 1/12th scale on-roadKato 2 230 HO Scale 670mm (26 3 8") Radius 22. 5 Curve Track [4 pcs] UniTrack Give your HO trains broad, graceful curves with these 670mm (26 3 8") radius Unitrack sections. Each piece covers 22. 5 degrees four make a 90 degree turn, sixteen a full circle and the generous radius is a great choice for concentric double track curves and longer equipment. Integrated gray roadbed and nickel silver rail deliver dependable running, while UniJoiners snap