Shimano GRX RX400 10-Speed Long Cage Rear Derailleur - Gravel & Cyclocross Compatible BMX Bike - Old School Featuring a 50mm reach and

Featuring a 50mm reach and 31mm rise

excellent durability under high temperatures

Durable Shimano FH-M8110B rear hub axle set constructed from high-strength steel and corrosion-resistant materials for reliable performance in all riding conditions

food-grade silicone that is BPA

Shimano GRX RX400 10-Speed Long Cage Rear Derailleur - Gravel & Cyclocross Compatible BMX Bike - Old School Featuring a 50mm reach andBoost your gravel cycling performance with the Shimano GRX RD RX400 Rear Derailleur a durable and reliable component engineered specifically for mixed surface adventures. Designed with advanced materials and innovative technology, this 10 speed, long cage derailleur offers optimized shifting, superior chain stability, and enhanced durability for gravel, off road, and adventure cycling enthusiasts. Materials & Construction Constructed from high