20T 5mm Bore Hardened Steel Motor Pinion Gear 3 Pack For 1/8 And 1/10 RC Crawlers Monster Trucks Short Course Trucks And Boats Fits 550 540 Motors 5mm Shafts Compatible With Traxxas Axial FMS HSP Losi Redcat

Three-Pack 20T 5mm Bore Hardened Pinion Gear for RC Motors
✔️ 20T, 5mm bore, hardened steel, fits 550/540 motors

High-strength pinion gear built for 1/8 and 1/10 scale RC crawlers, monster trucks, and boats. It’s a direct, upgrade-ready substitute for stock brass gears on 5mm shafts and 550/540 motors across top brands like Traxxas, Axial, FMS, HSP, Losi, and Redcat.

✅ 3-Pack value for backups across multiple vehicles
✅ 20T tooth count balances torque and top speed for climbs and speed runs
✅ 5mm bore compatible with 550/540 motors and standard 5mm shafts
✅ Hardened steel CNC-machined to outlast brass under heavy loads

💡 What is a pinion gear used for in 1/8 to 1/10 scale RC crawlers and trucks? A handy overview of its role in performance upgrades.

• Increases drive ratio to tailor torque and top speed
• Hardened steel resists wear during tough off-road runs
• 5mm bore and 20T size fit 550/540 motors across brands
• Direct replacement for brass gears to boost durability