Description This bicycle axle is expertly designed for sturdy bike fork axle performance, connecting your bike trailer thru axle securely to the rear bike axle. Forged with high-strength aluminum alloy and stainless steel, it supports heavy duty trailer spindle functions while staying lightweight. The quick release front bike axle enables easy installation and removal, perfect for towing your bicycle trailer thru axle and hauling cargo on diverse terrains. Features - Color: Black -Material:Aluminium alloy, stainless steel - Size: 21.50X1.80X1.10cm/8.45X0.71X0.43in -Thread diameter: 12mm, pitch: 1.5mm, tooth length: 36mm, minimum to maximum length: 121.5 - 142mm -Secure connection: the thru axle for bike trailer hitch ensures a stable and solid attachment between your bicycle and trailer, preventing wobbling and improving towing safety&nbsp -Heavyduty construction: the bike trailer thru axle offers optimal durability and can handle heavy loads without deformation&nbsp -Easy installation: the quick release bike axle front allows users to effortlessly install and remove the trailer part, making it convenient for frequent riding or storage&nbsp -Broad compatibility: this spindle fits most mountain bikes, road bikes, and pet trailer setups, ensuring you get the ideal fit&nbsp -Longevity: this replacement spindle resists wear and tear, delivering performance for towing cargo or utility trailer needs&nbspPackage list: 1 x bike trailer barrel axle