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3D Aluminum Disc Support
To help you plan your race day strategy
treated and polished 3BS 6061 Hydroforming aluminum
Auto backlight √
backed by 80 years of victories and metallurgical expertise
Cambio Shimano GRX RD-RX820 12v Biciclette Bambino 3D Aluminum Disc SupportThe RD RX820 model is compatible with 12 speed 11 34T and 11 36T cassettes, offering a wide gear range that allows maintaining a comfortable cadence regardless of terrain type. The SHIMANO GRX 12 speed derailleur features an integrated chain stabilizer that ensures quieter shifting and safer chain management in demanding situations. The chain tensioner also includes an ON OFF switch for pedaling on smooth surfaces. Features Quiet and reliable shifting
