YLME 2-Pack Bike Jockey Wheel 11T/13T Aluminum Alloy Rear Derailleur Pulley with Metal Bearings - Guide Part for Mountain And Road Bikes,Blue,13T

• [Premium Material]: Crafted From CNC Aluminum Alloy, This Pulley Is Lightweight Yet Highly Durable, Ensuring A Long Service Life.
• [Excellent Workmanship]: Featuring An Anti-Rust And Corrosion-Resistant Anodized Finish, This Bike Guide Wheel Pulley Offers Long-Lasting, Reliable Performance.
• [Compact Design]: Lightweight And Compact, This Pulley Is Easy To Carry And Store. Available In Four Colors To Suit Your Preferences And Needs.
• [Perfect Fit]: Running On Smooth Ball Bearings, This Pulley Is An Essential Accessory For Your Bicycle. It Fits Almost All Mountain Bikes With 11t Or 13t Guide Wheels, Enhancing Your Cycling Experience.
• [Satisfaction Guarantee]: If You'Re Not Completely Satisfied With Your Purchase, Feel Free To Email Us At Any Time. We Will Respond Promptly And Assist In Resolving Any Issues.

Guide Wheel Selection Rules Selection Principles: Size Consistency: Whenever possible, use the same size as the original guide wheel. While choosing a smaller size is acceptable, larger sizes are not recommended. Compatibility: The guide wheel and the tension wheel are interchangeable. In some cases, the original rear guide wheels and the tension pulley may differ in size but can be replaced. Be sure to re-adjust the chain length accordingly. Product Details Name: Rear Guide Wheel Material: 7075 High-Strength Aluminum Alloy + Metal Bearings Size: 11T: Diameter ~41mm 13T: Diameter ~49mm Color Options: Black, Red, Blue, Green, Purple, Gold, Silver, Pink Specification: Guide wheel with 4/5/6mm shaft Weight: 11T: 6.9g 13T: 8.8g Note: For 11T and 13T purchases, 13T is typically used for long-tail rear derailleurs, while 11T is suitable for standard use. The 7075 aluminum alloy material supports most derailleurs on the market and is compatible with 7/8/9/10-speed systems. Package Includes 2pcs Rear Derailleur Pulley Notice Please allow a 1-2mm error due to manual measurement. Be aware that colors may vary slightly due to different picture placements.