--- product_id: 540623749 title: "Dynacraft Magna Major Damage Children's 12-20\" Bike – Bold and Durable Design, Perfect for Kids Learning to Ride, Sturdy and Easy to Assemble, Ideal for Young Riders" brand: "dynacraft" price: "$583.03" currency: USD in_stock: true reviews_count: 13 category: "Dynacraft" url: https://www.desertcart.us/products/540623749-dynacraft-magna-major-damage-childrens-12-20-bike-bold-durable store_origin: US region: United States of America --- # Adjustable padded seat & removable training wheels 12-inch BMX frame for agile beginner rides Coaster brake system for safe, hands-on control Dynacraft Magna Major Damage Children's 12-20" Bike – Bold and Durable Design, Perfect for Kids Learning to Ride, Sturdy and Easy to Assemble, Ideal for Young Riders **Brand:** dynacraft **Price:** $583.03 **Availability:** βœ… In Stock ## Summary > πŸš€ Ride Bold, Ride Brave β€” The Ultimate Starter BMX for Mini Daredevils! ## Quick Answers - **What is this?** Dynacraft Magna Major Damage Children's 12-20" Bike – Bold and Durable Design, Perfect for Kids Learning to Ride, Sturdy and Easy to Assemble, Ideal for Young Riders by dynacraft - **How much does it cost?** $583.03 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/540623749-dynacraft-magna-major-damage-childrens-12-20-bike-bold-durable) ## Best For - dynacraft enthusiasts ## Why This Product - Trusted dynacraft brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Effortless Assembly:** Simple setup with basic tools means more time riding, less time waiting - β€’ **Grow-With-You Design:** Adjustable seat and removable training wheels adapt as skills soar - β€’ **Bold Style, Instant Cool:** Eye-catching green & black deluxe paint with custom graphics for standout rides - β€’ **Safety First, Fun Always:** Coaster brakes eliminate hand-lever hassle for confident stops - β€’ **Built to Last, Ready to Blast:** Durable alloy steel frame withstands all the playground action ## Overview The Dynacraft Magna Major Damage 12-inch bike is a rugged, beginner-friendly BMX designed for kids ages 3-5. Featuring a durable alloy steel frame, coaster brakes for safe stopping, and adjustable padded seats with removable training wheels, it offers a perfect blend of safety, style, and growth potential. Its bold green and black design with custom graphics ensures your child rides with confidence and flair, while easy assembly and a trusted brand legacy make it a top choice for young riders starting their cycling journey. ## Description Be awesome, be epic, and cause some major damage! You’re sure to accomplish all three when you ride the Magna Major Damage 12-inch Boys Bike by Dynacraft. This BMX-style frame features a bright green and black deluxe paint finish, along with eye-catching custom graphics and colorful details on the handlebar pad, frame, and chain guard. Coaster brakes make stopping especially easy and removable/adjustable training wheels provide an extra level of stability until they’re ready to cruise on their own. An adjustable, padded seat also allows the bike to grow with them. The size and design of the bike are great for riders ages 3-5 years. Give your young one an epic ride on the Dynacraft Major Damage 12-inch Boys Bike. Review: Sturdy and safe bike - A sturdy bike for a beginner at a reasonable price. It can take a lot of abuse unlike higher end more expensive bikes. Easy to put together with basic tools. I like the fact that it has old style foot pedal activated coaster brakes rather than hand caliper brakes. Avoids needing to constantly replace the brake pads, and it's safer than having front caliper brakes which if applied hard alone can lurch the bike forward and send the rider over the handlebars. Caliper brakes also avoid the need for an inexperienced rider to take his/her hands off of the handlebars to activate the brake levers. Review: New bike fits just right - So far he loved it for his birthday thanks ## Features - Trusted Brand Legacy: With over three decades of experience, Dynacraft is a name synonymous with quality and innovation in the bicycle industry. Our bikes are designed to provide the ultimate riding experience, combining advanced engineering with stylish aesthetics. - Uncompromising Quality: Each Dynacraft bike is meticulously crafted using premium materials and state-of-the-art manufacturing processes. Our commitment to quality ensures that every bike delivers exceptional performance, durability, and reliability, making it a perfect choice for riders of all ages and skill levels. - Comprehensive Warranty and Support: We stand behind our products with a comprehensive warranty that covers manufacturing defects for up to one year. Our dedicated customer support team is always ready to assist, ensuring you have a smooth and satisfying ownership experience. - Enhanced Riding Comfort: Dynacraft bikes are designed with the rider's comfort in mind. Featuring ergonomic designs, adjustable seats, and high-quality tires, our bikes offer a smooth and enjoyable ride, whether you're commuting, exercising, or exploring new trails. - Wide Range of Models: From children's bikes to adult bicycles, Dynacraft offers a diverse range of models to suit every rider's needs. Our bikes come in various sizes and styles, ensuring that everyone from young learners to seasoned cyclists can find their perfect match. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09V8GB9M8 | | Additional Features | Adjustable Seat | | Age Range (Description) | 3-5 | | Age Range Description | 3-5 | | Best Sellers Rank | #208,361 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #216 in Kids' Bicycles | | Bicycle Drivetrain Type | Coaster Brake | | Bike Type | BMX Bike | | Brake Style | Coaster | | Brand | Dynacraft | | Brand Name | Dynacraft | | Color | Green | | Customer Reviews | 4.5 out of 5 stars 3,100 Reviews | | Derailleur Configuration | Rear | | Frame Material Type | Alloy Steel | | Global Trade Identification Number | 00087876010258 | | Included Components | Training Wheels, Handlebar Pad | | Item Type Name | Boys Bike | | Item Weight | 17.6 pounds | | Manufacturer | Dynacraft | | Maximum Weight Recommendation | 81 pounds | | Model Name | Major Damage | | Model Number | 8010-25 | | Model Year | 2022 | | Number Of Speeds | 1 | | Number of Speeds | 1 | | Seat Material | Plastic | | Size | 12" | | Skill Level | Beginner | | Specific Uses For Product | Gravel, Road, Trail | | Style Name | 12-inch Wheels | | Suspension Type | Rigid | | UPC | 087876010258 | | Warranty Description | Limited 1 Year Warranty | | Warranty Type | Limited | | Wheel Size | 12 inches | ## Product Details - **Age Range (Description):** 3-5 - **Bike Type:** BMX Bike - **Brand:** Dynacraft - **Color:** Green - **Frame Material:** Alloy Steel - **Included Components:** Training Wheels, Handlebar Pad - **Number of Speeds:** 1 - **Special Feature:** Adjustable Seat - **Suspension Type:** Rigid - **Wheel Size:** 12 Inches ## Images ![Dynacraft Magna Major Damage Children's 12-20" Bike – Bold and Durable Design, Perfect for Kids Learning to Ride, Sturdy and Easy to Assemble, Ideal for Young Riders - Image 1](https://m.media-amazon.com/images/I/71UziHw0pbL.jpg) ![Dynacraft Magna Major Damage Children's 12-20" Bike – Bold and Durable Design, Perfect for Kids Learning to Ride, Sturdy and Easy to Assemble, Ideal for Young Riders - Image 2](https://m.media-amazon.com/images/I/71uK1yTXm3L.jpg) ![Dynacraft Magna Major Damage Children's 12-20" Bike – Bold and Durable Design, Perfect for Kids Learning to Ride, Sturdy and Easy to Assemble, Ideal for Young Riders - Image 3](https://m.media-amazon.com/images/I/51b4Xld+y6L.jpg) ![Dynacraft Magna Major Damage Children's 12-20" Bike – Bold and Durable Design, Perfect for Kids Learning to Ride, Sturdy and Easy to Assemble, Ideal for Young Riders - Image 4](https://m.media-amazon.com/images/I/61jjCWTL7TL.jpg) ![Dynacraft Magna Major Damage Children's 12-20" Bike – Bold and Durable Design, Perfect for Kids Learning to Ride, Sturdy and Easy to Assemble, Ideal for Young Riders - Image 5](https://m.media-amazon.com/images/I/71wpysoKtjL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Sturdy and safe bike *by J***N on December 14, 2025* A sturdy bike for a beginner at a reasonable price. It can take a lot of abuse unlike higher end more expensive bikes. Easy to put together with basic tools. I like the fact that it has old style foot pedal activated coaster brakes rather than hand caliper brakes. Avoids needing to constantly replace the brake pads, and it's safer than having front caliper brakes which if applied hard alone can lurch the bike forward and send the rider over the handlebars. Caliper brakes also avoid the need for an inexperienced rider to take his/her hands off of the handlebars to activate the brake levers. ### ⭐⭐⭐⭐⭐ New bike fits just right *by K***R on February 17, 2026* So far he loved it for his birthday thanks ### ⭐⭐⭐⭐⭐ Great bike for price *by B***N on May 16, 2026* Great bikes colors are amazing wish they had a Green bike. Easy to put together --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/540623749-dynacraft-magna-major-damage-childrens-12-20-bike-bold-durable](https://www.desertcart.us/products/540623749-dynacraft-magna-major-damage-childrens-12-20-bike-bold-durable) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-17*