M21 High-Performance Motor for JK Direct Drive 1/32 Cars Balanced Armature • 2mm Shaft • Direct-Drive Ready This is the original equipment motor used in our OmniSlotBox JK Direct Drive 1/32 slot cars — a compact, gearless powerhouse designed for ultra-smooth analog racing . 🔧 Specifications Model : M21 Type : Brushed DC motor Shaft Diameter : 2mm (for direct connection to rear axle) Armature : Factory balanced for minimal vibration Voltage Range : 9V–15V recommended Designed For : Gearless, direct-drive slot car applications Weight : ~18g ✅ This motor eliminates gear drag and delivers whisper-quiet, linear acceleration — ideal for routed wood tracks, analog Carrera Evolution/Exclusiv systems, and OmniSlotBox setups. 🏁 Why Choose the M21? Precision-balanced armature = smoother throttle response High torque and low RPM ripple = superior low-speed control Specifically designed for gearless direct-drive chassis 2mm shaft mates directly to rear axle — no pinion required Reliable performance lap after lap with minimal maintenance ⚙️ Compatibility Fits all JK Direct Drive 1/32 slot cars 2mm shaft/axle interface — not suitable for gear-driven systems Works best with foam tires on a prepped surface Use with minimum 3A per lane analog power supply 🛠 Tips for Use Allow 60–90 seconds of cool-down for every 10 minutes of hard driving Monitor motor heat on high-amp setups — cool motor = fast laps Keep axle alignment tight to prevent shaft wobble or excess wear 🚚 Shipping & Handling Ships via USPS Ground Advantage Shipping cost based on weight and destination Combine with other parts for discounted shipping — just request total Shipping overcharge? We’ll refund the difference 🔁 Returns & Satisfaction Guarantee 30-day returns on new/unopened motors Opened/used motors may be subject to restocking fees (up to 50%) Contact us before initiating a return — we’re here to help 🌍 International Buyers Import taxes and customs duties not included We don’t under-declare or mark items as gifts Delivery estimates: First Class: 2–4 weeks Priority Mail: 6–10 business days Express Mail: 4–8 business days Looking to upgrade or replace your JK DD motor? The M21 delivers the smooth, reliable, gearless performance serious analog racers demand. 💬 Questions? Message any time — I’m happy to help with motor selection, tuning, or installs. Thanks for racing with OmniSlotBox and supporting small hobby businesses! ~ Jim Cunningham www.slotcarclubhouse.com – Sherwood, AR Let’s race!