🚴 Welcome to Traveling Ground
We’re a mission-driven bike shop—every purchase helps refurbish and donate bikes through Bicycles for Humanity Colorado. Ride pro-level gear and support global mobility.
 
🔧 Why This Rear Derailleur Is So Good
The RD-7900 is Shimano’s 10-speed Dura-Ace rear derailleur that brought significant improvements in weight, stiffness, and shifting precision. Built with carbon fiber and alloy materials, it offers crisp, race-ready performance in a compact short cage design. It’s optimized for standard road double chainring setups and cassettes up to 28T, making it ideal for fast, clean drivetrains where efficiency matters most.
 
✅ Specs:
Model: Shimano Dura-Ace RD-7900
Speed Compatibility: 10-speed
Cage Length: Short
Max Cassette: 28T
Min Cassette: 11T
Max Front Difference: 16T
Total Capacity: 33T
Body Material: Aluminum and carbon composite
Weight: ~166g
 
🧰 Condition:
Used in good condition. Some light cosmetic scratching on the body and cage, but no cracks or performance issues. Pulleys spin freely, spring tension is solid, and shifting is smooth.
 
📦 What’s Included:
Shimano RD-7900 rear derailleur (short cage)
Mounting bolt included