Surly Rack Rear Lower Kit ModelNumber=E3852 Range 10-50 Cogs 10-12-14-16-18-21-24-28-32-36-42-50 Cassette

Range 10-50 Cogs 10-12-14-16-18-21-24-28-32-36-42-50 Cassette Body Type SRAM XD Drivetrain Speeds 12 Color Black Weight 450 Designed for ebike Yes Defined Color Black Teeth 10-50T

Quick access from both sides

Tubeless Ready up to 60 PSI Flat Protection Tread and Sidewall Color Black Defined Color Black ISO Width (mm) 40 ISO Diameter 622 / Road / 29" Tire Intended Use Gravel Tire Diameter 700c Tire Bead Folding Labeled Size 700 x 40 Tire Type Tubeless Ready Clincher PSI 60 / 80 Width 40

48 and 50t variants feature direct mount aero chainrings for better aerodynamics

Surly Rack Rear Lower Kit ModelNumber=E3852 Range 10-50 Cogs 10-12-14-16-18-21-24-28-32-36-42-50 CassetteReplacement Surly Bicycle Mounted Rack PartsDirect replacement item for Surly racks