Burley Thru-Axle - 12 x 1.5mm 172-178mm Size-9/16 Disc Center Lock Freehub Body

Disc Center Lock Freehub Body SRAM XD-R Valve Presta Wheel Tire Type Tubeless Ready Hub Spacing F: 100 R: 142 Rim Internal Width 21

ONLY Compatible with LINKGLIDE shifting system Double or Triple Double Drivetrain Speeds 9 Crank-FD Type Mountain Double Derailleur Capacity 16 Front Derailleur Clamp 28

It does not compromise the shifting in the smaller cogs of the cassette but yet it enables the derailleur to work with as large as a 40T cassette

and 4mm hex

Burley Thru-Axle - 12 x 1.5mm 172-178mm Size-9/16 Disc Center Lock Freehub BodyBurley's adapter for bikes with a 12mm thru axle. Stock thru axles are not able to accommodate any sort of axle mounted hitch system. These thru axles have an external male threading on the end to accommodate the installation of Burley's axle mounted hitch system. Designed for bikes with 12mm thru axles Simple one time installation process to connect your Burley bike trailer to your bike Made from high quality materials like stainless steel and