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Cog spacing optimized for smoother transitions
Le design X-HORIZON réduit la friction et les changements de vitesses non sollicités et améliore la tension de la chaîne
A great way to test different stems
Perfect for Paris-Roubaix
pour cadre 135 mm/142 mm* Bras creux en aluminium * Plateaux en acier riveté très durable* Requiert le jeu de pédalier SM-BB52
Shimano Ultegra RX Di2 RD RX805 Variation:Shimano, Ultegra RX Di2 RD-RX805, Road rear derailleur, Speeds: 11, Cage: GS, Grey Cog spacing optimized for smoother* Road derailleur with Shadow+ clutch technology for increased chain retention* Compatible with Dura Ace Di2 and Ultegra Di2 shifters* Ideal for CX and gravel bikes* Available only with GS cage* Max front difference: 16T* Total capacity: 39T* Compatible with 11 28 to 11 34 cassettes* Weight: 248 g
