--- product_id: 188651574 title: "Gdrasuya 49cc 4-Stroke Bike Engine Bicycle Motor Set 142F Gas Motorized Chain Drive Bicycle Scooter Conversion kit 2.5HP DIY Kit 2.5L Tank US" brand: "gdrasuya" price: "฿22099" currency: THB in_stock: true reviews_count: 4 url: https://www.desertcart.co.th/products/188651574-gdrasuya-49cc-4-stroke-bike-engine-bicycle-motor-set-142f store_origin: TH region: Thailand --- # 4-Stroke Quiet Top Speed 32 MPH 49cc Power Gdrasuya 49cc 4-Stroke Bike Engine Bicycle Motor Set 142F Gas Motorized Chain Drive Bicycle Scooter Conversion kit 2.5HP DIY Kit 2.5L Tank US **Brand:** gdrasuya **Price:** ฿22099 **Availability:** ✅ In Stock ## Summary > 🚴‍♂️ Rev Up Your Commute! ## Quick Answers - **What is this?** Gdrasuya 49cc 4-Stroke Bike Engine Bicycle Motor Set 142F Gas Motorized Chain Drive Bicycle Scooter Conversion kit 2.5HP DIY Kit 2.5L Tank US by gdrasuya - **How much does it cost?** ฿22099 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/188651574-gdrasuya-49cc-4-stroke-bike-engine-bicycle-motor-set-142f) ## Best For - gdrasuya enthusiasts ## Why This Product - Trusted gdrasuya brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **DIY Freedom:** Easily convert your standard bike into a motorized scooter with this user-friendly kit. - • **Built to Last:** Long-term spare parts availability ensures your ride stays in top shape for years to come. - • **Unleash Your Ride:** Transform your bicycle into a powerful motorized machine with this 49cc engine kit. - • **Speed Meets Stability:** Achieve speeds of 27-32 MPH while enjoying the reliability of a well-engineered motor. - • **Whisper-Quiet Performance:** Experience the smooth, quiet operation of a 4-stroke engine, perfect for urban commuting. ## Overview The Gdrasuya 49cc 4-Stroke Bike Engine Bicycle Motor Set is a powerful and reliable conversion kit designed for adult bicycles. With a top speed of 27-32 MPH, this 2.5HP engine offers a quiet and stable ride, making it ideal for urban environments. The kit is compatible with 26-inch frame bikes and comes with long-term spare parts availability, ensuring durability and ease of maintenance. ## Description Features:4 Stroke 49cc Bicycle Engine Kit. This comes with the newest style gear box which runs on 2 chains for more torque. The bicycle motor fits most 24" and larger bicycles with a V-frame with at least a 8.5" height clearance for the engine.Description:· RPM:8500 Cooling· Displacement Bore and Stroke 41.8 x 35.8· Power: 10.2KW @6800 rpm· Torque: 2.4Nm @4500 rpmNote:· If your bike has one piece cranks you will need a European Bottom Bracket Adapter for the wide cranks to be installed.Package includes: · 4 cycle 49cc 2.5 hp engine · Chain drive transmission · 100/12 tooth configuration · Universal 5/8" keyed drive shaft · 48 tooth 9 hole chrome sprocket · 2.5L fuel tank · Twist throttle & cable with kill switch · Heavy duty chain · All the mounting brackets, gaskets, and hardware.without beltOur products shipped from the United States, quickly arrived through logistics such as UPS/USPS/FEXDEIf you have any questions, please contact us and we will respond to your information within 24 hours.If you are dissatisfied with our products, we will accept your return and refund you ## Features - ▶4 stroke engines are more stable, more reliable and Quieter than the 2 stroke rivals - ▶Long term spares available as required - ▶The top speed of between 27 - 32 MPH / or 43 - 51 KPH - ▶The top speed of between 27 - 32 MPH / or 43 - 51 KPH - ▶49cc 4 stroke pull start petrol conversion kit for adult bicycles, ideal for bikes with 26 inch frames and similar ## Images ![Gdrasuya 49cc 4-Stroke Bike Engine Bicycle Motor Set 142F Gas Motorized Chain Drive Bicycle Scooter Conversion kit 2.5HP DIY Kit 2.5L Tank US - Image 1](https://m.media-amazon.com/images/I/61dQ5kamwZL.jpg) ![Gdrasuya 49cc 4-Stroke Bike Engine Bicycle Motor Set 142F Gas Motorized Chain Drive Bicycle Scooter Conversion kit 2.5HP DIY Kit 2.5L Tank US - Image 2](https://m.media-amazon.com/images/I/61EEiBeed6L.jpg) ![Gdrasuya 49cc 4-Stroke Bike Engine Bicycle Motor Set 142F Gas Motorized Chain Drive Bicycle Scooter Conversion kit 2.5HP DIY Kit 2.5L Tank US - Image 3](https://m.media-amazon.com/images/I/61sXivj7dZL.jpg) ![Gdrasuya 49cc 4-Stroke Bike Engine Bicycle Motor Set 142F Gas Motorized Chain Drive Bicycle Scooter Conversion kit 2.5HP DIY Kit 2.5L Tank US - Image 4](https://m.media-amazon.com/images/I/61qnUnXkkYL.jpg) ![Gdrasuya 49cc 4-Stroke Bike Engine Bicycle Motor Set 142F Gas Motorized Chain Drive Bicycle Scooter Conversion kit 2.5HP DIY Kit 2.5L Tank US - Image 5](https://m.media-amazon.com/images/I/615Sir9FUfL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐ Great engine, lousy customer service *by B***D on Reviewed in the United States on October 5, 2022* Ok, first off, beware that you must be savy with thinking outside the box and being adaptive when undertaking this attempt to modify a bike. This project is not for beginners. All bikes are different and newer bikes are not standard at all and may not accept this engine to the frame. Be aware there are NO INSTRUCTIONS included with this engine. YouTube is your best help, but even that is limited. Now, the engine works great and starts with one pull. I was super pleased with it. However I did not receive all my parts with the order. I was missing the throttle and engine cut off switch. After a month of the company telling me twice that the part was being sent, which never arrived either time I was told, Amazon helped me file an A-Z claim to make it right. So my recommendation is that the product is fabulous, but heaven help you if it's missing a part as customer service is non-existent. ### ⭐⭐⭐⭐⭐ Missing pieces *by A***R on Reviewed in the United States on September 2, 2022* Haven’t checked if the engine works as the manual indicates that it should be mounted prior to starting.Looking over the engine I see no reason it won’t work (amateur mechanic); it seems fine- edges need a lil bit filing, bots need some torque, oil and gas. ### ⭐⭐⭐⭐ Great motor! *by J***L on Reviewed in the United States on April 21, 2020* Motor runs strong and starts in 1-3 pulls every time. But I have to knock a star off for a few issues:Do yourself a favor and buy new fasteners! The ones provided are junk.Also do some searches in YouTube for good install instructions! None are provided by the seller --- ## 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.co.th/products/188651574-gdrasuya-49cc-4-stroke-bike-engine-bicycle-motor-set-142f](https://www.desertcart.co.th/products/188651574-gdrasuya-49cc-4-stroke-bike-engine-bicycle-motor-set-142f) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-06-12*