Shimano CS-6700 Ultegra Bicycle Cassette
- 10-speed cassette, 11-28T cog range
- Silver finish, Ultegra CS-6700
- Tallest cogs riveted to an aluminum carrier
- 0.24 kg item weight
- Limited warranty from Shimano
Last refreshed Oct 3, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A lighter Ultegra cassette for ten speed road drivetrains, with a moderate range for rolling terrain. It carries no listed freehub standard, so check your wheel before ordering.
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ASIN: B002KNLX10Model: CS-6700Category: Cassettes & Freewheels
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Overview
Replacing a worn ten speed cluster with this Ultegra part puts the tallest cogs on a riveted aluminum carrier, which trims weight where rotating mass matters. The cogs ride a body that the seller describes as gentler on aluminum cassette bodies.
Racers who want much of the weight saving of Dura-Ace without stepping up to it are the target, since the description frames Ultegra as a close second. The only real limit is that the range is a single option, so steep climbers may want a larger big cog.
Who it's for
Road riders and racers keeping a ten speed system who want less rotating weight will find a direct swap. Mountain bikers and owners of other speed counts should not use it.
Pros and cons
- Lighter than the older 6600 cassette
- Riveted aluminum carrier on tallest cogs
- Gentle on aluminum cassette bodies
- Silver finish matches Ultegra parts
- Freehub compatibility not stated
- Narrow range, no big climbing cog
- Ten speed only
Performance notes
Riveting the larger cogs to an aluminum carrier removes material without weakening the shift ramps, which cuts spinning weight at the rear wheel. A tight spread between cogs holds the cadence even when the gear changes during a race effort.
Where it stands among cassettes & freewheels
- #1 most-searched brand and model of the 24 cassettes & freewheels lines we track (by search demand, not sales).
From the specs of the 15 cassettes & freewheels we list; not a test result.
Specifications
| Model | CS-6700 |
|---|---|
| Dimensions & fit | |
| Item weight | 0.24 kg |
| Capacity & performance | |
| Speeds | 10-speed |
| Construction & materials | |
| Material Type | Multi |
| Color | Silver |
| Included components | |
| Included Components | Cassettes |
| Warranty & support | |
| Warranty Description | Limited Warranty |
| Other details | |
| Number of Teeth | 11-28T |
| Item Type Name | Cassette (10-Speed, 11/28T) |
| Part Number | CS-6700 |
Frequently asked questions
Will the Shimano CS-6700 fit my wheel?
The listing says ten speed and 11-28T but names no freehub standard. Confirm your freehub body takes a ten speed Shimano cassette first.
Is the CS-6700 lighter than the 6600?
The description says the CS-6700 is lighter than the 6600 and closes the gap on Dura-Ace.
Does the cassette work with aluminum freehub bodies?
The description says the riveted design is gentler on aluminum cassette bodies.
Is this an eleven speed cassette?
No. It is listed as a ten speed cassette.