--- product_id: 45213949 title: "Common Bike Left Chain Drive Customized for Geared Bicycle Derailleur" brand: "l-faster" price: "2627 kr" currency: DKK in_stock: true category: "L Faster" url: https://www.desertcart.dk/products/45213949-common-bike-left-chain-drive-customized-for-geared-bicycle-derailleur store_origin: DK region: Denmark --- # 250W motor power Supports 24V or 36V battery Clamp-on aluminum mount Common Bike Left Chain Drive Customized for Geared Bicycle Derailleur **Brand:** l-faster **Price:** 2627 kr **Availability:** ✅ In Stock ## Summary > ⚡ Power your pedal, join the e-bike revolution! ## Quick Answers - **What is this?** Common Bike Left Chain Drive Customized for Geared Bicycle Derailleur by l-faster - **How much does it cost?** 2627 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/45213949-common-bike-left-chain-drive-customized-for-geared-bicycle-derailleur) ## Best For - l-faster enthusiasts ## Why This Product - Trusted l-faster brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Customizable Fit:** Clamp-on aluminum mount designed for V-brake rear wheels—modify the bracket for a perfect, secure fit on your geared bike. - • **Battery Flexibility:** Compatible with 24V or 36V batteries (sold separately) so you can choose longer rides or lighter setups. - • **Durable & Lightweight:** Aluminum motor casing keeps the kit sturdy yet light at just over 4kg, perfect for daily commutes or weekend adventures. - • **User-Friendly Controls:** Choose between thumb or twist throttle options for intuitive power delivery tailored to your riding style. - • **Effortless Pedal Assist:** Boost your ride with a 250W motor that makes uphill climbs and long distances feel like a breeze. ## Overview This 250W left chain drive motor kit by L-faster is a tailored electric assist solution for geared bicycles with rear V-brakes. Featuring a durable aluminum clamp-on mount, it supports 24V or 36V battery systems (battery not included) and offers two throttle options for personalized control. Ideal for millennial professionals seeking an eco-friendly, efficient boost on commutes or weekend rides, it balances power and pedal effort for longer, less tiring journeys. ## Description desertcart.com: 250W for Common Bike Left Chain Drive Customized for Geared Bicycle Derailleur（¨Thumb Kit） : Sports & Outdoors ## Features - Motor Brand:L-faster - 1). This kit is for the bike that using the V brake on the rear wheel. If your bike uses disc brake or coaster brake, this kit does not compatible with that bike, please choose other kits. If you can not sure your bike type, please send me your bike picture, so I can recommend you the correct kit. - 2). The motor bracket maybe does not fit your bike frame, this you need to modify the bracket by yourself, please confirm this. If you do not know how to modify, please send me your bike picture, so I can give you suggestion. - 3). This kit just for people riding bike easier, it is not fast (26-inch bike can run about 20km/h), you'd better pedal with the motor power, this can ride longer, please understand. - 4). The difference between 24V and 36V is the working current, if you want to ride longer, I recommend 36V kit. - 5). This controller comes with 1 fuse wire and 3 fuses, if you burn 1 fuse, you'd better note what makes it burnt and avoid this happen again, or please feel free to contact me for help. - 6).This item has 2 throttle types for choice, if you want the twist type, please choose the "key throttle" option, and if you want the thumb type, please choose the "thumb throttle" option, thank you. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0736S46TF | | Best Sellers Rank | #568,872 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1,563 in Adult Electric Bicycles | | Brand | L-faster | | Brand Name | L-faster | | Color | 24VThumb Kit | | Customer Reviews | 3.8 out of 5 stars 149 Reviews | | Included Components | motor | | Item Weight | 4.05 kg | | Manufacturer | L-faster | | Manufacturer Part Number | YK-B-214 | | Material | Aluminum | | Material Type | Aluminum | | Model Number | 250W | | Mount Type | Braze-On Mount | | Mounting Type | Braze-On Mount | | Number of Items | 1 | | Number of Teeth | 42 | | UPC | 614024375107 | | Unit Count | 1 Count | ## Product Details - **Brand:** L-faster - **Color:** 24VThumb Kit - **Item Weight:** 4.05 Kilograms - **Material:** Aluminum - **Mounting Type:** Clamp-On Mount ## Images ![Common Bike Left Chain Drive Customized for Geared Bicycle Derailleur - Image 1](https://m.media-amazon.com/images/I/61GLxZzo3-L.jpg) ![Common Bike Left Chain Drive Customized for Geared Bicycle Derailleur - Image 2](https://m.media-amazon.com/images/I/517EEzj-pGL.jpg) ![Common Bike Left Chain Drive Customized for Geared Bicycle Derailleur - Image 3](https://m.media-amazon.com/images/I/51B5fxbXg3L.jpg) ![Common Bike Left Chain Drive Customized for Geared Bicycle Derailleur - Image 4](https://m.media-amazon.com/images/I/511oS8mLMbL.jpg) ![Common Bike Left Chain Drive Customized for Geared Bicycle Derailleur - Image 5](https://m.media-amazon.com/images/I/81A3Wd+gt6L.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: will this motor keep up with traffic on the turnpike ? :)** A: I know your question is just a lark, but if you were to gear things right, you could go way faster than you would think. These things are to assist your pedaling, not to replace you pedaling. If you want to go fast, go get a motorcycle, and join the rest of the gasoline bunch. If you do manage to get on turnpike, with a bike, take a video and put it on YouTube. That would be interesting to watch. **Q: Will this work with the dynacraft alpine eagle 700c 45cm aluminum frame hybrid bike?** A: You can put this on just about anything that rolls. How easy or hard, depends on how you mount the motor. I imagine the price of an aluminum frame bike, would tend to make you NOT WANT to drill many holes though. **Q: I purchased this 36V 250w left chain drive derailleur kit ,,, i received right side clockwise motor. now what ? help.** A: Yes, the motor rotates clockwise, so when you mount it on the bike left side, it can drive the wheel go forward. The right drive kit motor rotates anti-clockwise . You can see this link: https://youtu.be/2dDEep9pu2U **Q: Is there anyone who can provide a real review of just using the parts without mods; what battery to purchase?** A: I've installed 7 bike kits and all bikes are different. This is a universal kit therefore some modification are required. The only kits I've done that don't require modification are the ones that change the entire wheel. Concerning the battery, go with their recommendation or larger. I've never had a problem there, but all of my installs use the motor to assist their pedaling or going up hills. ## Frequently Bought Together - 24V36V250W Electric Conversion Kit for Common Bike Left Chain Drive Customized for Electric Geared Bicycle Derailleur - LotFancy Electric Scooter Charger for Razor E100, E200, E300, E500, PR200, MX350, Dirt Bike, Pocket Mod, Sports Mod, and Dirt Quad, 24V 1.5A Battery Charger, Replacement for W13112099014 - Razor Charger Port - 2 Wire Pocket Mod, Dirt Quad, Dirt Rocket MX350 --- ## 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.dk/products/45213949-common-bike-left-chain-drive-customized-for-geared-bicycle-derailleur](https://www.desertcart.dk/products/45213949-common-bike-left-chain-drive-customized-for-geared-bicycle-derailleur) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-11-10*