microSHIFT Mezzo front derailleurs offer durable construction and seamless compatibility with existing systems, making repairs and upgrades easy.Features-Compatible with 48/38/28T trekking chainrings -Precision forged steel shifting plate-Aluminum bracket-Plastic body-34.9mm band clamp with 31.8 and 28.6mm clamp adapters included-66-69 degree chainstay angle-50mm ChainlineItem Specifications-Derailleur Capacity:20-Double or Triple:Triple-Drivetrain Speeds:7-Drivetrain Speeds:8-Front Der/Shifter Compatibility: Mountain-Front Derailleur Cable Pull:Dual-Front Derailleur Clamp:34.9 (1-3/8")-Front Derailleur Style:Traditional-Max Ring (teeth):48-Weight:152