Front Derailleur Shimano GRX RX820 Braze-On

Front Derailleur Shimano GRX RX820 Braze-On

The Shimano GRX FD-RX820-F is a 2x12-speed front derailleur designed specifically for gravel and cyclocross bikes. It delivers a natural and precise shifting feel, even on rough terrain and under high pedaling loads. The GRX series is engineered to meet the demands of modern gravel riding with enhanced tire clearance and optimized chain line.

With a chain line that is +2.5 mm wider than standard road front derailleurs (47 mm), it improves tire clearance and compatibility with wider tires. The 17T front gear capacity supports broader chainring combinations up to 48T. Integrated chain tension adjustment and a refined mechanism make setup simple while ensuring reliable and accurate performance.

• Group: Shimano GRX
• Model: FD-RX820-F
• Application: Gravel / Cyclocross
• Gearing: 2x12-speed
• Mount type: Braze-On
• Shifting type: Down-Pull
• Max chainring: 48T
• Total capacity: 17T
• Compatible chain: 12-speed HG
• Chain stay angle: 63–66°
• Chain line: 47 mm
• Material: aluminium / steel / GFRP
• Weight: approx. 95 g