

⚙️ Upgrade your ride with precision – don’t let a worn axle slow you down!
The Shimano Ultegra 6870 Di2 and 6800 Rear Derailleur B-Axle Assembly is a lightweight, precision-engineered replacement part designed to restore optimal shifting performance on Shimano Ultegra rear derailleurs. Weighing just 22.68 grams, it ensures durability and seamless compatibility for professional-grade cycling repairs.
| ASIN | B016MPPBRS |
| Best Sellers Rank | #1,213,938 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1,193 in Rear Bike Derailleurs |
| Brand Name | SHIMANO |
| Customer Reviews | 5.0 5.0 out of 5 stars (2) |
| Date First Available | January 26, 2016 |
| Item Dimensions LxWxH | 4 x 2.5 x 0.75 inches |
| Item Package Dimensions L x W x H | 4 x 2.5 x 0.75 inches |
| Item Weight | 0.05 Pounds |
| Manufacturer | Shimano |
| Number of Items | 1 |
| Package Weight | 22.68 g |
| Part Number | Y5YC98010 |
E**E
Five Stars
Works great!
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