Why Choose Our Carbon Fiber Wheel Rims? Top-Fire is a professional carbon bike rim manufacturer offering a full range of carbon fiber wheel rims for road, MTB, gravel, folding bike, and BMX use. Each carbon rim is crafted with high-modulus fiber and advanced molding to achieve the ideal balance between lightweight design and durability. We offer OEM carbon rims and custom carbon bike rims to meet different riding and branding needs. You can choose from various rim depths, widths, finishes, and logo options. Whether it’s carbon road rims for aerodynamic speed, carbon MTB rims for off-road durability, or carbon BMX rims for agility and impact resistance, Top-Fire delivers consistent quality trusted by global riders and OEM partners. How Are Carbon Fiber Rims Made Material Preparation Top-Fire uses premium carbon fibers such as T700, T800, and T1000. Each batch is tested for strength and consistency to ensure every carbon rim meets high-performance standards. Lay Up Layers of carbon fiber are precisely arranged using UD lay-up techniques to achieve the ideal balance of stiffness, strength, and weight. This ensures lightweight carbon bike rims with lasting durability. Drilling CNC drilling creates accurate spoke and valve holes, maintaining rim balance and uniform stress for better performance. Molding The lay-up is molded with EPS technology under controlled heat and pressure, forming a consistent shape and smooth surface finish. Testing & QC Each rim undergoes impact and fatigue tests, by strict QC inspection to confirm structural integrity and reliability before shipping. Testing and Quality Control of Carbon Fiber Rims Rim UCI Impact Test Top-Fire’s carbon fiber bicycle rims pass UCI impact testing to verify strength under sudden shocks and real-world riding impacts. Rim Rigidit Test Lateral and torsional stiffness are measured to confirm consistent handling and efficient power transfer, key features of Top-Fire’s high-performance carbon rims. Fatigue Test Each rim undergoes fatigue testing to simulate long-term use and repeated stress, guaranteeing that lightweight carbon bike rims retain their strength over time. Spoke Tension Spoke tension tests ensure uniform load distribution and wheel stability. Every custom carbon bike rim meets strict Top-Fire quality standards for precision and reliability.
The Key Benefits of Choosing Top-Fire Carbon Frames Our carbon frames are designed to be incredibly lightweight yet durable. The carbon fiber material provides the perfect balance between strength and weight, improving both performance and handling for riders. Each Top-Fire carbon frame is produced with precision, using advanced carbon fiber manufacturing techniques. Our molding process ensures each frame is built for durability and strength. This high level of craftsmanship guarantees a reliable product for both professional and recreational cyclists. Top-Fire carbon bike frames are highly resistant to corrosion and damage, making them ideal for various weather conditions. Unlike metal frames, carbon fiber does not rust, and it retains its strength over time, ensuring a long-lasting investment for your business. In addition to performance, our carbon frames have an aesthetic appeal that enhances any bike's look. The sleek, polished finish reduces drag and improves aerodynamics, making your bike faster and more efficient on the road. How Top-Fire Factory Produces High-Quality Carbon Bike Frames Premium Carbon Fiber Materials The first step in producing our carbon bike frames is selecting the best materials. We use high-quality carbon fiber sourced from trusted suppliers, ensuring exceptional strength and low weight. The carbon fibers we choose are known for their high tensile strength, which ensures that the frames are both durable and lightweight, ideal for riders looking for performance and longevity. Precision Molding Process Once we have the carbon fiber materials, we move to the precision molding phase. Using advanced molding techniques, we shape the carbon fibers into the required frame design. The molding process allows for a perfect balance between aerodynamics and strength, ensuring that each frame is optimized for both speed and durability. This step is critical in ensuring that the frame's geometry provides the best ride quality, whether on the road or off-road. CNC Drilling and Finishing After molding, the frames undergo CNC drilling for precise component fitments, such as the bottom bracket and headset areas. CNC technology ensures that these critical areas are drilled with utmost accuracy, providing the perfect fit for all parts. We then finish the frame with a high-quality sanding process, ensuring the surface is smooth and free from any imperfections that could affect the frame’s performance. Resin Bonding and Layering To ensure the carbon fibers are securely bonded together, we apply a high-pressure resin bonding technique. This process involves layering multiple sheets of carbon fiber with resin and applying pressure to cure them. The resin used is chosen for its superior bonding properties, ensuring that the frame is both rigid and flexible, absorbing shocks while maintaining structural integrity. This step is key to ensuring that the frame can withstand the forces it will encounter during cycling. Rigorous Quality Contro...
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ABOUT TOP-FIRE Xiamen Top-Fire Sports Equipment Co., Ltd. is not just another carbon fiber parts factory but playing a leading role and with a solid reputation in the field of carbon fiber technology development of OEM in China, and we are a professional carbon bike parts manufacturers, focus on the carbon bike frame, carbon bike forks, carbon bike rims, and other carbon bike parts for many years. More than 20 world-class, well-trained, full of cycling industry experience engineers, designers, material scientists, and support technicians have formed the main core of the Top-Fire technical team. The Top-Fire technical team has served name brands from racket brands like Wilson, Prince, to the cycling brand Specialized, BMC, Scott, Cevelo, FFWD, Ritchey, Fondriest, Bianchi, BH, and so on. Top-Fire also has established technical cooperation with leading Chinese universities, as well as European bicycling and material consultants, which enables Top-Fire to accumulate valuable developing data and lots of know-how that just for Top-Fire only. Top-Fire understands that even the most creative concepts, the finest advanced technology, or the latest material science mean little without close association with the cutting-edge test. That's why Top-Fire is proud of our modernized, well-equipped, and staffed product testing center which is outstandingly among carbon fiber bicycle parts manufacturers in China. The most advanced equipment and facilities are used to test the limit of every Top-Fire product. Specific equipment is to test the fatigue and impact the performance of carbon fiber frames, forks, rims, handlebars, stems, and seat posts. Top-Fire tests to all recognized international standards (EN, JIS, ISO, GB, and so on) and its internal factory standards which are more crucial than international regulations. Finite element analysis, stress testing, and engineering, all these works are invested to develop prototypes, despite the expense and manufacturing time. Top-Fire also recognized that laboratory test is only part of the picture. That is why Top-Fire has kept a close relationship with several professional teams and individual champion athletes, who provide real-world performance tests of Top-Fire products and develop data from the field of the professional race. Every designer and brand deserved their factory. Top-Fire connects the idea, brain, and manufacturer with good knowledge and experienced sourcing service. In Top-Fire you will get the best quality OEM manufacture services that make your business fruitfully. OUR FACTORY We are not only doing product production and processing, but We also take the time to customize products that suit our customer’s needs and expectations. From special configurations, custom decals, we offer options to reflect the lifestyles of our customers. In TOP-FIRE, I believe that you will find your satisfactory products and services here. At present, there are about 180 workers in our carbon rim factory and about 150 workers in our carbon frame factory. Our current production capacity is: carbon frame ---> 2000 sets/month carbon fork ---> 3500 pcs/month carbon rim ---> 5000 pcs/month carbon wheel ---> 1200 pairs/month Carbon Fiber Wheel Rim Test Report Rim UCI Impact Test This test simulates the impact a rim may face during extreme riding conditions. With the rim set up without spokes, a vertical free-fall impact is applied directly to the spoke hole area, in accordance with UCI standards. Result: The rim withstood the repeated impacts without cracks or structural damage, fully meeting UCI certification requirements. Rim Positive Rigidity Test Rigidity testing evaluates how the rim responds when subjected to vertical loads. In this test, the rim was mounted on a machine and gradually loaded with forces of 10 kg, 20 kg, and 30 kg. The corresponding deformation was measured at each stage, and the stiffness values were calculated. Result: The rim achieved an average rigidity of 197.3 N/mm. The rim maintained stable stiffness across different loads, ensuring excellent responsiveness and stability for high-performance riding. Walking Fatigue Test The walking fatigue test simulates long-term riding conditions to evaluate rim durability under repeated impact. In this test, the rim was run at a constant speed of 40 km/h while the tire struck obstacles measuring 10 mm in height and 50 mm in width. The setup included a load of 64 kg, a swing angle of 5°, and tire pressure at 90% of the maximum rating. Over the course of the test, the rim experienced approximately 900,000 continuous impacts. Result: After 12 hours and 58 minutes of testing, covering a distance of 535 km, the rim showed no abnormalities in its structure, tire mounting area, or outer circle. These results confirm the rim’s outstanding fatigue resistance and reliability fo...
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Dear Employees, Partners, and Valued Clients, As the National Day and Mid-Autumn Festival are approaching, and in accordance with the official holiday schedule and our company’s operational needs, we would like to inform you of the holiday arrangement as follows. Holiday Schedule： Holiday period: October 1–8, 2025 (Wednesday to Wednesday), total 8 days. Work resumes: October 9, 2025 (Thursday). Make-up workdays: September 28, 2025 (Sunday) and October 11, 2025 (Saturday). Work Arrangements During the Holiday： Please be aware that production, logistics, and shipping services may be delayed during the holiday. We encourage customers and partners to plan accordingly and place orders ahead of time. Top-Fire has a warm reminder for you! For any urgent need, please contact us. Mobile: +86-13850081554 Email: info@cwcarbonworld.com WhatsApp: +86-13950133146 We wish everyone a joyful and safe National Day and Mid-Autumn Festival. Please enjoy the festive time with your family and friends. We look forward to working together again with renewed energy after the holiday. Top-Fire September 28, 2025
We are pleased to announce that Top-Fire Carbon will be participating in Taichung Bike Week 2025, the most important trade show for the bicycle industry.This exhibition provides an excellent opportunity for professionals, distributors, and OEM partners to explore the latest innovations in carbon bicycle wheels and components. Booth Information Booth No.: B/B1F NO.22 Venue: Tempus Evergreen Laurel Hotel (永丰栈酒店) Date: September 16–19, 2025 At the exhibition, we will showcase our advanced range of carbon bike wheels, carbon rims, carbon bike frames, and other high-performance cycling components. With a strong focus on lightweight design, aerodynamics, and durability, our products are widely recognized by international clients and OEM partners. Taichung Bike Week is known for its unique format, which allows quality face-to-face time between buyers and suppliers. This setting makes it the perfect platform for meaningful discussions, new business opportunities, and strengthening long-term partnerships. We sincerely welcome you to visit our booth to learn more about our latest products and discuss potential cooperation opportunities. For more information about our products, please visit our official website: www.top-fire.com Contact Information Email: info@cwcarbonworld.com Phone: +86-18030153852 WhatsApp: +86-13950133146 We look forward to seeing you at Taichung Bike Week 2025!
Dear partners and customers， Dragon Boat Festival is approaching, and the fragrance of Zongzi leaves is in the air. On the occasion of this traditional festival, we sincerely thank you for your long-term support and trust. According to the national holiday arrangements and the actual situation of the company, the holiday arrangements for the Dragon Boat Festival in 2025 are hereby notified as follows. Holiday time: May 31, 2025 (Saturday) to June 2 (Monday), a total of 3 days. Working hours: Normal work on June 3, 2025 (Tuesday). Holiday service arrangements: Business consultation: During the holiday, you can leave a message online through the official website, and we will handle it in order after the holiday Emergency contact: In case of emergency, please contact us through the following contact information, and we will provide you with necessary assistance. Email: info@cwcarbonworld.com Whatsapp and Wechat: +86-18030212651 Logistics arrangements: Due to the impact of holidays, the shipment and delivery of some orders may be delayed. It is recommended that you make procurement and inventory arrangements in advance to avoid affecting production progress. Warm reminder: Please pay attention to travel safety during the holidays and take precautions against heatstroke It is recommended to make arrangements for pre-holiday stocking in advance to avoid affecting production plans Here, Top-Fire Team wishes you and your family: Happy Dragon Boat Festival and a happy family! If you have any questions, please feel free to contact us. Top-Fire Team May 30, 2025
Dear Customers We are on a Chinese new year holidays from 8th Feb. to 18th Feb.2024. Top-Fire team are happy to receive any inquiries from your side, our salesmen will reply your inquiry during this time. And orders(Carbon rims/carbon bike parts/carbon bicycle frame) will be arranged after the holidays. Email: Sales@top-fire.com Whatsapp and Wechat: +86 18965197642 Happy new year Top-Fire Team
2022 Top-Fire New Carbon Ebike Frame With Bafang M620 Motor With the rapid development of carbon fiber electric vehicles, Top-fire's current Bafang series electric frames can no longer meet the business needs. After a year of research and development, we finally developed the latest frame FM-MD28. We are happy to introduce our all new full carbon suspension Enduro frameFM-MD28. This The frame is equipped with Bafang M620 motor and BTF25 battery. In order to meet different needs, this frame is available in 3 versions for full suspension e-mtb bikes and electric fat bike. (FM-MD28-A) (FM-MD28-B) (FM-MD28-C) Check out other spec of the frame below. * Size: 15.5 / 17.5 / 19 * Tire Size: 26er*4.8" / 29er*2.6" * Headtube: 56mm(down) and 44mm(up)FSA NO.57 * Perfect combination of power and aesthetics. Professional geometry and full internal cable routing design. If you want to learn more details, you can check out this model hit this link>> If you read here, you may be curious to see what's the build bike look like, we will simulate the effect of various parts assembly on the computer to avoid problems in actual assembly, so that the rider can assemble and ride immediately after receiving the frame. Check out this stunning complete bike of the all new FM-MD28.
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