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ULTEGRA RX RD-RX800 REAR DERAILLEUR
Description
For rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner.
- Road derailleur with Shadow+ clutch technology for improved chain retention
- Ideal for CX and gravel bikes
- Available in GS cage only
- Maximum front difference: 16T
- Total capacity: 39T
- Compatible with 11-28 to 11-34 cassettes
- 248g
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