Shimano Ultegra CS-6700 Cassette – 10-Speed, 11-28T, HG Freehub
The Shimano Ultegra CS-6700 cassette is a proven 10-speed road drivetrain component designed for smooth, consistent shifting and long-term durability. With an 11-28T range, it provides a balanced gear spread for climbing and high-speed riding on road and endurance setups.
Key Functional Details
- 10-speed road cassette with wide-range 11-28T gearing
- Compatible with Shimano HG freehub bodies
- Optimized for smooth and reliable shifting under load
- Steel cogs for durability and long service life
- Ideal for climbing-focused road setups or mixed terrain riding
- Classic Ultegra-level performance at a lower cost entry point
Technical Specifications
| Brand | Shimano |
| Model | Ultegra CS-6700 |
| Speeds | 10-speed |
| Gear Range | 11-28T |
| Cog Sizes | 11-12-13-14-15-17-19-21-24-28 |
| Freehub Compatibility | Shimano HG (Hyperglide) |
| Material | Steel cogs |
| Weight | 229g |
| Color | Silver |
| UPC | 689228293656 |
Compatibility & Technical Notes
Good Fit:
- Shimano 10-speed road drivetrains (Ultegra, 105, Tiagra 10-speed)
- Compatible 10-speed chains and derailleurs
- Shimano HG freehub bodies (standard road hubs)
- Riders needing easier climbing gears without sacrificing top-end speed
Not A Fit:
- 11-speed or 12-speed drivetrains (spacing mismatch)
- SRAM XD or XDR driver bodies
- MicroSpline freehub systems
- Some older 8/9-speed freehubs may require spacer adjustment
This cassette is designed specifically for 10-speed Shimano-compatible systems and must be paired with matching drivetrain components for proper shifting.
Service / Ownership Context
Install with a cassette lockring tool and chain whip. Regular chain replacement will extend cassette life. Inspect for worn teeth (shark-toothing) if experiencing skipping under load.
Fit & Use Signals
- Ideal for road riders tackling hills or mixed terrain
- Good upgrade for older 10-speed drivetrains
- Balanced gearing for endurance and recreational road riding
- Works well with compact or mid-compact cranksets
Key issue here is drivetrain mismatch—customers often try to run this on 11-speed setups. It will not index correctly. Also confirm derailleur capacity: most short cage road derailleurs can handle 28T, but always verify older setups. Chain wear is critical—installing this with a worn chain will cause immediate skipping. Recommend pairing with a new 10-speed chain at install. Also check freehub body condition—older HG bodies can have notching that affects cassette fit.