# BHARAT Biker Royal 4T Plus 15W/50 (AT) API SM # **Premium 15W50 API SM 4 Stroke Bike Engine Oil – Advanced Technology for 350cc to 650cc Motorcycles (Royal Enfield Compatible)** Advance Technology Formula | API SM Performance Standard | Built for Long Rides | Made in India ✔ BS6 COMPATIBLE ✔ ADVANCE TECHNOLOGY ✔ API SM PERFORMANCE ✔ LONG RIDE STABILITY BHARAT Biker Royal 4T Plus 15W50 is engineered for riders who demand maximum durability, smooth performance, and consistent engine protection in mid to high-capacity motorcycles. This premium 4 stroke bike engine oil is specially tuned for 350cc to 650cc bikes, including Royal Enfield and other performance motorcycles, operating under real Indian riding conditions such as heavy traffic, long highway rides, and high-temperature environments. Formulated with advanced Super Synthetic Technology (SST) and high-quality base oils, this 15W50 API SN engine oil delivers excellent resistance against engine wear, oxidation, and sludge formation, ensuring a cleaner and more efficient engine. Its thick viscosity and high thermal stability provide reliable lubrication under extreme pressure and heat, making it ideal for powerful engines that require extra protection. This synthetic bike engine oil enhances engine responsiveness, reduces vibration and noise, and ensures smooth clutch and gear shifting, giving riders a refined and comfortable riding experience. It also helps extend engine life, reduce maintenance frequency, and maintain consistent performance over longer drain intervals. Designed specifically for Indian roads and climate, this 15W50 engine oil for 350cc to 650cc motorcycles is a dependable choice for riders looking for high performance, long-lasting protection, and superior riding comfort in every journey. With its **Advance Technology formulation**, the oil forms a strong lubricating film that protects engine components during high-speed cruising, traffic stress, and long-distance touring. It ensures reduced friction, better heat control, and dependable performance ride after ride. ## COMPATIBLE MOTORCYCLES Motorcycle Brand Classic 350 / Bullet 350 / Hunter 350 Royal Enfield Meteor 350 / Thunderbird Series Royal Enfield Himalayan Series (411 / 450) Royal Enfield Interceptor 650 / Continental GT 650 Royal Enfield Dominar 400 Bajaj Duke 390 / RC 390 KTM Apache RR 310 TVS G 310 R / G 310 GS BMW CB350 Series / CB300R Honda R3 / MT-03 Yamaha Gixxer 250 / V-Strom SX Suzuki All 350cc–650cc Motorcycles Universal Compatibility Designed to perform across a wide range of modern 4 stroke motorcycles used for city commuting, highway cruising, and touring applications. ## WHY CHOOSE THIS ENGINE OIL? This oil is developed to handle demanding riding conditions where engine load, heat, and continuous operation require reliable lubrication and protection. **Strong Oil Film Protection** Protects engine parts under pressure **Heat Control Performance** Keeps engine temperature stable **Reduced Friction Loss** Improves smoothness and efficiency **Deposit Control** Keeps engine internally clean ## KEY PERFORMANCE BENEFITS ✦ **Stable Performance in Traffic** — Reliable during stop-and-go riding ✦ **Comfortable Long Ride Experience** — Maintains engine smoothness on highways ✦ **Consistent Gear Operation** — Smooth clutch and gear response ✦ **Engine Durability** — Protects critical components ## HOW TO USE 1. Run the engine for a few minutes before draining 2. Drain used oil completely from the engine 3. Check and replace oil filter if needed 4. Fill fresh oil as per manufacturer recommendation 5. Ensure correct oil level using dipstick 6. Start engine and allow proper circulation 7. Recheck level after a short run ## TECHNICAL SPECIFICATIONS Parameter Details SAE Viscosity 15W50 API Standard SM Technology Advance Formulation Engine Type 4 Stroke Motorcycles Recommended Range 350cc–650cc ## FREQUENTLY ASKED QUESTIONS Is 15W50 oil suitable for touring bikes? Yes, it is designed for stable performance during long-distance rides and heavy engine load conditions. Can I use this oil in city riding conditions? Yes, it performs well in both city traffic and highway riding environments. Does this oil improve engine life? Yes, it reduces wear and helps maintain engine durability over long usage. ![best lubricants solutions in india](https://cdn.shopify.com/s/files/1/0771/4540/7511/files/new-bharat-femily-groups---Copy_bf53cd95-a5e1-445b-81f9-2b0669e22cb0.png?v=1778750514) ## Details - **Price:** 1096.0 INR - 74613.0 INR - **Vendor:** Bharat Lubricants - **Type:** Advance Technology - **Tags:** 15w50 motorcycle oil, 4-stroke motorcycle oil, air-cooled motorcycle oil, bharat lubricants bike oil, bharat rider royal 4t plus, fuel efficient bike oil, Gujarat motorcycle engine oil, high heat resistance engine oil, high performance bike oil, ktm duke engine oil, long drain interval motorcycle oil, motorcycle oil for long rides, premium synthetic bike oil, royal enfield engine oil, wet clutch compatible oil ## Variants | Variant | Price | Available | |---------|-------|-----------| | 2.5 Litter's | 1096.00 INR | In stock | | 50 Litter's | 19950.00 INR | In stock | | 55 Litter's | 21161.00 INR | In stock | | 210 Litter's | 74613.00 INR | In stock | ## Images - Top 15W50 API SM Engine Oil for Royal Enfield Bikes - Top 15W50 API SM Engine Oil for Royal Enfield Bikes - Top 15W50 API SM Engine Oil for Royal Enfield Bikes - Best 20W40 Fully Synthetic Engine Oil for 250cc to 600cc BS6 Bikes --- > Source: [Bharat Lubricants](https://www.bharatlubricants.com/products/bharat-rider-royal-4t-plus-15w50) > Updated: 2026-06-06