Features: *Aluminum alloy and chromium-molybdenum steel: The tooth ring is made of high-quality aluminum alloy and chromium-molybdenum steel, ensuring durability and strength. *Multiple tooth options: The tooth ring has two options - 26T straight tooth and 24T slant tooth, providing versatility for different riding preferences and terrains. *Compatibility: The tooth ring 26T is suitable for Swiss 350, 240, 440,540 hubs, 24T is suitable Swiss 3-claw drum and drum tower base rings with 24 teeth. *Smooth and reliable performance: Equipped with a planetary ratchet ring and three-claw gold ring, the tooth ring ensures smooth shifting and reliable performance during cycling. *Easy installation and usage: The tooth ring can be easily installed on compatible hubs and drum systems, making it convenient for riders to upgrade their bikes without hassle. Specifications: *Product Name:bicycle hub ring *Material:Aluminum Alloy; Chromium Molybdenum Steel *Size:M34*1.0*8.0 *Color:black Package Content: 1pcs*bicycle hub ring Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Compatibility - Bicycle Hub Ring Ratchet Ring M34*1.0*8.0 26t Straight Tooth 24t Helical Tooth Good Performance Materials - These bike accessories are made of premium material, ensuring their durability and long-lasting performance. Optimal Performance - These accessories offer versatility and adaptability to different cycling needs and provide optimal performance and reliable functionality enhance the riding experience and ensure safety. Easy Installation - These accessories can be easily installed on your bike to get your bike running again. After-sale Serive - We provide high quality products, if there is any problem with our product, please contact us.