Description
Shimano Ultegra FD-6503 Front Derailleur 28.6 Clamp 9 Speed Triple
Has been inspected, Ultrasonic cleaned, and lubed. Ready to be used.
Inventory number: 08204 JQ53
Industry Information:
The Shimano Ultegra FD-6503 front derailleur is a component from the late 1990s and early 2000s, part of the widely respected Ultegra 6500-series groupset. It was a staple on countless road, touring, and cyclocross bikes.
This derailleur was designed as a high-performance 9-speed triple front derailleur. The “3” in the model number (FD-6503) specifically denotes its use with a triple crankset, setting it apart from the double-compatible FD-6500. It was celebrated for its smooth, reliable shifting, inheriting much of the technology from the top-tier Dura-Ace groupset of that era.
Compatibility
- Drivetrain: The FD-6503 is designed for a 9-speed chain and a triple chainring setup. It will work flawlessly with other Shimano 9-speed road shifters, including Ultegra ST-6510 and 105 ST-5500 STI levers.
- Frame: The derailleur uses a clamp-on design, with a clamp size of 28.6mm. This makes it compatible with older steel and aluminum frames that have a seat tube with this specific diameter. It can also be adapted to larger seat tube diameters (31.8mm and 34.9mm) using an adapter or shim.
- Cable Pull: This is a bottom-pull derailleur, meaning the shift cable comes from beneath the bottom bracket shell. It is not compatible with frames designed for top-pull routing.
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Front: (Double) Shimano Ultegra 9-speed FD-6500 (Triple) Shimano Ultegra 9-speed FD-6503
A little about the seller:
I’ve been in the cycling industry for more than 30 years (I know, that makes me old!). I’ve been a professional bicycle mechanic for most of those years, including working locally at Lee’s Cyclery before they became Trek Stores. Now I work from home as a Customer Success Manager for a software team. But I still love fixing up and working on bikes and riding them too!
Purchase from me with peace of mind. Not only can you trust my years of experience, but I will also fit you for the bike and provide any mechanical insight at the time of purchase.
Shipping information:
I ship USPS Ground. I try to keep it simple. It will be packed very well, but if you see any damage to the box or Part, keep the box and packing material plus, take pictures. I do insure all parts that are shipped. In addition, if shipped out of Colorado, there is no Sales Tax. You can also combine shipping with multiple items.
