--- product_id: 514000162 title: "RUTU 420 Chain Sprocket Rear Sprocket 45 Tooth 76mm for Chinese 50 70 90 110 125 140cc 150 160 170 Cc Apollo RFZ CRF50 XR50 SDG IMR SSR YCF Kayo Thumpstar Coolster Pit Dirt Motor Bike Motorcycle" price: "46361CFA" currency: XOF in_stock: true reviews_count: 8 url: https://www.desertcart.sn/products/514000162-rutu-420-chain-sprocket-rear-sprocket-45-tooth-76mm-chinese store_origin: SN region: Senegal --- # Compatible with 420 Chain 45 Teeth Precision Cut Heat-Treated 45# Steel RUTU 420 Chain Sprocket Rear Sprocket 45 Tooth 76mm for Chinese 50 70 90 110 125 140cc 150 160 170 Cc Apollo RFZ CRF50 XR50 SDG IMR SSR YCF Kayo Thumpstar Coolster Pit Dirt Motor Bike Motorcycle **Price:** 46361CFA **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your ride with precision power and unstoppable durability! ## Quick Answers - **What is this?** RUTU 420 Chain Sprocket Rear Sprocket 45 Tooth 76mm for Chinese 50 70 90 110 125 140cc 150 160 170 Cc Apollo RFZ CRF50 XR50 SDG IMR SSR YCF Kayo Thumpstar Coolster Pit Dirt Motor Bike Motorcycle - **How much does it cost?** 46361CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/514000162-rutu-420-chain-sprocket-rear-sprocket-45-tooth-76mm-chinese) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Enhanced Chain Longevity:** Reduces friction to prevent premature wear and extend chain life. - • **Durable Heat-Treated 45# Steel:** Built to resist corrosion and withstand rugged off-road conditions. - • **Complete Installation Kit Included:** Comes with 4 screws for hassle-free mounting and immediate upgrade. - • **Precision Engineered 45-Tooth Design:** Optimized for superior chain grip and smooth power transfer. - • **Universal Fit for Chinese 50-170cc Bikes:** Seamlessly compatible with top brands like Apollo, SSR, YCF, and more. ## Overview The RUTU 420 Rear Sprocket features a robust 45-tooth design crafted from heat-treated 45# steel, ensuring exceptional strength and corrosion resistance. Engineered for Chinese 50cc to 170cc dirt bikes, it delivers enhanced chain grip and reduces friction to prolong chain life. Compatible with a 420 chain size, this sprocket includes all necessary mounting screws for a quick, reliable upgrade that boosts both torque and top speed depending on sprocket size adjustments. ## Description Product description Brand：RUTU focus on providing the best protection for off-road riding enthusiasts. Type: 45 Teeth Rear Sprocket 420 Sprocket Can Only Work with 420 Type Chain The inside diameter: Approx. 76mm (3") The minimum hole diameter: Approx. 8mm Fitment:420 76mm 45 Tooth Rear Sprocket for Chinese 50cc 70cc 90cc 110cc 125cc 140cc 150cc 160cc 170cc 190cc Pit Dirt Bike (Such As Chinese CRF50,XR50,SSR,YCF,IMR,Atomik,Thumpstar,BSE,Apollo,Kayo,Stomp,Piranha,DHZ,GPX,Pitster Pro,SDG,Braaap,Coolster,Lifan,YX,Ect And Many Other Chinese Brands). Package Includes 1 Piece Rear Sprocket、4 screws Important Note - Without changing the front sprocket, reducing the size (number of teeth) in the rear sprocket will increase top speed but reduce torque. Increasing the size (number of teeth) in the rear sprocket will increase torque allowing for greater hill climbing but will reduce the top speed Review: great sprockett - mounted right up to my ssr125 no problems, the only thing is i wish the bolts was slightly shorter, but a angle grinder fixed that issue. Review: Perfect to get 50mph out of the X1 Spark and similar emotos 60v+ - This fits the emoto rims great! Make sure you get the appropriate sproket for the rim. ## Features - Fittment：This is a replacement motorcycle or dirt bike sprocket is compatible with Chinese 50 70 90 110 125 140cc 150 160 170 Cc Apollo RFZ CRF50 XR50 SDG IMR SSR YCF Kayo Thumpstar Coolster Pit Dirt Motor Bike Motorcycle - Materials：We pride ourselves on the quality at which we produce this rear dirt bike sprocket. The sprocket gear itself is made from high-quality 45# steel, with excellent corrosion resistance and then heat-treated for a harder, stronger, and longer-lasting composition - Highly Efficient: The chain sprocket is precision engineered to provide excellent chain grip. This helps drive efficiency so your motorcycle chain stays stable and consistent as you ride - Features：The Sprocket helps reduce friction when the chain turns on the sprocket teeth. This helps prevent premature chain wear and prolongs its lifespan - Size：This motorbike sprocket kit compatible with a chain size of 420, pitch of 1/2", roller width of 1/4", roller diameter of 5/16" ,the sprocket thickness is 6mm/0.239",the inside diameter 76mm(3"), the minimum hole diameter is 8mm(0.31"),we also provide 4 screws ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.5 out of 5 stars 188 Reviews | ## Images ![RUTU 420 Chain Sprocket Rear Sprocket 45 Tooth 76mm for Chinese 50 70 90 110 125 140cc 150 160 170 Cc Apollo RFZ CRF50 XR50 SDG IMR SSR YCF Kayo Thumpstar Coolster Pit Dirt Motor Bike Motorcycle - Image 1](https://m.media-amazon.com/images/I/71gLwOuwqML.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ great sprockett *by Z***L on November 2, 2025* mounted right up to my ssr125 no problems, the only thing is i wish the bolts was slightly shorter, but a angle grinder fixed that issue. ### ⭐⭐⭐⭐⭐ Perfect to get 50mph out of the X1 Spark and similar emotos 60v+ *by T***D on February 13, 2026* This fits the emoto rims great! Make sure you get the appropriate sproket for the rim. ### ⭐⭐⭐⭐⭐ Good job *by A***A on May 14, 2026* Fits perfect and works well!Made to last Good Job 👍🏽 ## Frequently Bought Together - RUTU 420 Chain Sprocket Rear Sprocket 45 Tooth 76mm for Chinese 50 70 90 110 125 140cc 150 160 170 Cc Apollo RFZ CRF50 XR50 SDG IMR SSR YCF Kayo Thumpstar Coolster Pit Dirt Motor Bike Motorcycle - MRELC 420 12T 17mm Motorcycle Front Engine Sprocket Compatible with 125 140 150 160cc Honda TaoTao Loncin Roketa Coolster Sunl Lifan Chinese ATV Quad Dirt Bike - YOXUFA 420 Motorcycle Chain 132 Links for 50 70 90 110 125cc SSR TaoTao Coolster Apollo Baja Kazuma Chinese ATV 4 Wheeler Quad Pit Dirt Bike 212cc Go Kart Mini Bike Powersports Parts W/Chain Breaker --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/514000162-rutu-420-chain-sprocket-rear-sprocket-45-tooth-76mm-chinese](https://www.desertcart.sn/products/514000162-rutu-420-chain-sprocket-rear-sprocket-45-tooth-76mm-chinese) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-07-16*