--- product_id: 476774626 title: "Frederimo 49cc 50cc Big Bore Pocket Bike Engine" brand: "frederimo" price: "¥21329" currency: JPY in_stock: true reviews_count: 8 category: "Frederimo" url: https://www.desertcart.jp/products/476774626-frederimo-49cc-50cc-big-bore-pocket-bike-engine store_origin: JP region: Japan --- # 49cc 2-Stroke Power 3.1:1 Gearbox Reduction Up to 40mph Speed Frederimo 49cc 50cc Big Bore Pocket Bike Engine **Brand:** frederimo **Price:** ¥21329 **Availability:** ✅ In Stock ## Summary > ⚡ Unleash Mini Power, Maximize Fun! ## Quick Answers - **What is this?** Frederimo 49cc 50cc Big Bore Pocket Bike Engine by frederimo - **How much does it cost?** ¥21329 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/476774626-frederimo-49cc-50cc-big-bore-pocket-bike-engine) ## Best For - frederimo enthusiasts ## Why This Product - Trusted frederimo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Lightweight & Compact:** Just 10 pounds, engineered for easy handling and quick assembly by intermediate riders. - • **Race-Ready Powerhouse:** 49cc 2-stroke engine delivers thrilling speed and torque for mini dirt bikes and pocket bikes. - • **Versatile Compatibility:** Perfect fit for pocket bikes, mini dirt bikes, ATVs, and scooters—upgrade your ride instantly. - • **Complete DIY Upgrade Kit:** Includes handle grips, throttle cable, and air filter for a seamless, all-in-one installation. - • **Precision CNC Engine Cover:** Durable, sleek CNC-machined cover ensures long-lasting protection and a premium look. ## Overview The Frederimo 49cc/50cc Big Bore Pocket Bike Engine is a high-performance 2-stroke motor designed for mini dirt bikes, pocket bikes, ATVs, and scooters. Featuring a 3.1:1 gearbox reduction and capable of speeds up to 40mph, this lightweight 10-pound engine comes with a CNC-machined cover and a complete DIY kit including grips, throttle cable, and air filter. Ideal for intermediate riders seeking a reliable, powerful upgrade with easy installation. ## Description Buy Frederimo 49cc/50cc Big Bore Pocket Bike Engine - 2 Stroke Motor with Pull Start, CNC Engine Cover, DIY Kit Includes Handle Grip, Throttle Cable, Air Filter for Mini Dirt Bike: Rebuild Kits - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Matched right up - My son had a small 50cc dirt bike given to him. The clutch became inoperable. After looking around found this motor was more practical to buy then replacing the clutch. Received the motor and it looked great in the packaging even came with new grips and throttle and cable. Everything matched right up to the bike. Out some gas in it and it started right up. Made some adjustments to card for air flow and it idles and runs amazing. Very happy with a 5 year old who's ecstatic. Review: Works decent - Carburetor leaks if gas is held on float or needle issue maby pull start feels cheesy but it works and I’ve turned it over about 30 times now to plenty of power for a kid ## Features - Gear Box Reduction Rate: 3.1 : 1 - 49cc mini motor air cooled racing engine capable of achieving 40mph dependant on user weight and terrain. - For 49CC 2 Stroke Pocket Bike, Mini Dirt Bike, ATV or Scooter - Includes: 1 x complete engine motor ; 1 x pair of Grips ; 1 X Throttle Cable ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BGHJ4VHN | | Age Range (Description) | Adult | | Assembly Required | Yes | | Best Sellers Rank | #1,377,814 in Automotive ( See Top 100 in Automotive ) #736 in Powersports Engine Kits | | Bicycle Drivetrain Type | chain | | Bicycle Gear Shifter Type | Twist Grip | | Bike Type | Pocket Bike, Mini Dirt Bike, ATV or Scooter | | Brake Style | Disc | | Brand | Frederimo | | Brand Name | Frederimo | | Color | Red | | Customer Reviews | 3.8 3.8 out of 5 stars (40) | | Date First Available | April 22, 2022 | | Included Components | Filter | | Item Package Dimensions L x W x H | 13 x 10 x 6 inches | | Item Weight | 10 Pounds | | Manufacturer | Frederimo | | Material | Metal, Plastic, Vinyl | | Maximum Weight Recommendation | 396.8 Pounds | | Model Name | Frederimo 49cc 50cc Big Bore Pocket Bike Engine | | Number of Speeds | 14 | | Package Weight | 10 Pounds | | Power Source | battery or direct fuel connection | | Seat Material Type | Vinyl | | Size | Style4 | | Skill Level | Intermediate | | Special Feature | Electric | | Specific Uses For Product | Off-Road | | Style | Red | | Suspension Type | Rigid | | Theme | Motorcycle | | UPC | 715092616069 | | Wheel Material | Alloy Steel | ## Product Details - **Age Range (Description):** Adult - **Bike Type:** Pocket Bike, Mini Dirt Bike, ATV or Scooter - **Brake Style:** Disc - **Brand:** Frederimo - **Color:** Red - **Included Components:** Filter - **Number of Speeds:** 14 - **Size:** Style4 - **Special Feature:** Electric - **Suspension Type:** Rigid ## Images ![Frederimo 49cc 50cc Big Bore Pocket Bike Engine - Image 1](https://m.media-amazon.com/images/I/71ga3Vr4LbL.jpg) ## Questions & Answers **Q: Is a separate exhaust needed to run this engine? If so which one?** A: My son had one on his dirt bike already an you don’t have to have exhaust for it to run **Q: Is this a right side or left side drive? The photos show both.** A: The mounting holes are on the bottom. I purchased this as a replacement for my sons dirt bike motor. His clutch was fried and it was more practical to replace the engine. I only see it mounting one way. Chain on left side. **Q: Automatic transmission?** A: Basically it uses gear ratios in the gear box like a transmission. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Matched right up *by K***. on February 21, 2023* My son had a small 50cc dirt bike given to him. The clutch became inoperable. After looking around found this motor was more practical to buy then replacing the clutch. Received the motor and it looked great in the packaging even came with new grips and throttle and cable. Everything matched right up to the bike. Out some gas in it and it started right up. Made some adjustments to card for air flow and it idles and runs amazing. Very happy with a 5 year old who's ecstatic. ### ⭐⭐⭐⭐ Works decent *by T***M on February 17, 2025* Carburetor leaks if gas is held on float or needle issue maby pull start feels cheesy but it works and I’ve turned it over about 30 times now to plenty of power for a kid ### ⭐ Junk *by P***K on January 28, 2024* Third pull. Ran it once and pull start broke right off. ## Frequently Bought Together - Frederimo 49cc 50cc Big Bore Pocket Bike Engine 2 Stroke Motor Pull Start Engine with Cylinder CNC Engine Cover DIY Engine + Handle Grip + Throttle Cable + Air Filter Fit Pocket Bike Mini Dirt Bike - 2-Stroke Muffler Exhaust Pipe with Expansion Chamber - Angled Design with Pipe Gasket - Compatible with 47/49cc CAG Daytona Pocket Bikes, Kids Mini Dirt Bike - Easy to Install - HIAORS T8F Drive Chain 116 Link Heavy Duty Compatible with 43cc 47cc 49cc 50cc 2-Stoke SSR SX50 Coolster ATV SYX Moto Holeshot X-Pro Mini Chopper Pocket Bike ATV Quad 4 Wheeler Scooter Minimoto Parts --- ## 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.jp/products/476774626-frederimo-49cc-50cc-big-bore-pocket-bike-engine](https://www.desertcart.jp/products/476774626-frederimo-49cc-50cc-big-bore-pocket-bike-engine) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-05-17*