Choosing between two used Shimano Ultegra groupsets comes down to how you prioritize drivetrain speed, crankset hardware, and the condition quirks of each listing. One offers 11-speed shifting and a more complete set; the other brings carbon cranks, a BB30 interface, and a slightly lower listed price.
Quick verdict
If you want 11-speed shifting and a near-complete groupset that includes cables, the Shimano ULTEGRA 6800 11 Speed rim brake mechanical groupset is the stronger pick, even though it does not come with a bottom bracket. If you prefer a wider range of frame compatibility and carbon cranks at a lower listed price, the Shimano Ultegra 6700 2x10 Speed Group Set with FSA Carbon Crank is worth serious consideration, provided you can live with its cosmetic wear and a broken shifter face-plate screw tab.
Price and feature comparison
| Ultegra 6800 | Ultegra 6700 | |
|---|---|---|
| Listed price | USD 417.95 | USD 375.00 |
| Drivetrain | 11-speed | 2x10-speed |
| Crankset | 50/34T, 170mm | FSA SL-K Light Carbon, BB30, 172.5mm, 50/34T |
| Compatible bikes | Gravel, Racing, Road | Road, Racing, Cyclocross, Gravel, Time Trial/Triathlon |
| Condition notes | Excellent plus preowned, low mileage, works together | Very good working condition, new shifter hoods, cosmetic blemishes |
Where each set wins
The 6800 wins for riders who want a more modern 11-speed drivetrain and a set that arrives with everything except the bottom bracket. It includes brakes, cables, cassette, chain, crankset, derailleurs, and shifters, and it is described as having low mileage and no issues. The 11-28t cassette gives you a tight spread that suits road riding.
The 6700 wins if you value a lower listed price and the inclusion of FSA SL-K Light carbon cranks with a BB30 interface. It also lists compatibility with cyclocross and time trial/triathlon bikes, which opens up more build possibilities than the 6800's listed road, gravel, and racing compatibility.
Product notes
Shimano ULTEGRA 6800 11 Speed rim brake mechanical groupset 170mm 50/34T, 11-28t
Listed at $417.95, this groupset is described as being in excellent plus preowned condition with low mileage and everything working well together. It includes the brake set, cables, cassette, chain, crankset, front and rear derailleurs, and shifters. The 11-28t cassette offers close-ratio gearing that works nicely on tarmac. One concrete limitation is that the bottom bracket is not included, so you will need to source one separately. If you are already on an 11-speed system or want to move your build up from a 10-speed setup, this is a clean, ready-to-run option.
Shimano Ultegra 6700 2x10 Speed Group Set, FSA Carbon Crank, BB30, 172.5, 50/34T
At $375.00, this 10-speed set comes with FSA SL-K Light carbon cranks, a BB30 bottom bracket interface, and a compact 50/34T chainring combination. The group is in very good working condition with brand new shifter hoods, and the cassette, chain, and chainrings have plenty of life. Expect cosmetic blemishes, with the front derailleur showing the most wear, and the right shifter has a broken screw tab for the face plate-though the plate still snaps in place. It is compatible with road, racing, cyclocross, gravel, and time trial/triathlon bikes, making it a flexible choice for a variety of frames.
Final choice by use case
For a straight road or gravel build where you want 11-speed shifting and a complete kit that includes cables, the Ultegra 6800 is the one to go for, as long as you have a bottom bracket ready. For a budget-conscious build that needs carbon cranks and a BB30 interface, or for a cyclocross or triathlon frame that demands broader compatibility, the Ultegra 6700 is the practical pick despite its cosmetic wear.
