Burley Ballz Thru Axle: 12 x 1.5 177mm ModelNumber=K7906 Cassette Cogs 11-12-13-15-17-19-22-25-28-32-36 Color Silver

Cassette Cogs 11-12-13-15-17-19-22-25-28-32-36 Color Silver Cassette Body Type Shimano/SRAM 11 Speed Road keyword search 1 x 11 Range 11-36 Drivetrain Speeds 11 Defined Color Silver Weight 381

Includes 5 interchangeable elastomers

Derailleur features a steel cage and steel pulley bearings

Cleats not included

Burley Ballz Thru Axle: 12 x 1.5 177mm ModelNumber=K7906 Cassette Cogs 11-12-13-15-17-19-22-25-28-32-36 Color SilverBurley Ballz Thru Axle: 12 x 1. 5 177mm. Burley Coho Axles Enables connection of the Coho XC trailer to bikes with 12mm rear thru axles. Multiple thread pitches and lengths available. Stock thru axles are not able to accommodate any sort of axle mounted hitch system. A Burley Coho Ballz Thru Axle is required for any bike with a 12mm rear thru axle to use the Coho XC. The Burley Ballz Thru Axle is not compatible with all carbon fiber bike frames