【Precision Thread & Length Adjustment】M12x1.0 through shaft (12 mm diameter, 1.0mm pitch) with 164-174 mm adjustable shaft length spacer for shortening the shaft length. Please check the shaft specification before installation.
【8-Spacer Customization Kit】Includes 1x7mm tapered, 2x2mm M10, 1x4mm M12, 2x2mm M12, 2x1mm M12 spacers. Self-adjust for diverse bike compatibility
【Direct OEM Replacement】Effortlessly replace factory thru-axles to attach trailer hitches. Secures road/hybrid/mountain bikes with universal compatibility
【Trailer Hitch Versatility】Left-side 10mm coupler fits most bike trailer hitches (e.g., Thule). Ensures stability for cargo/child carriers during transport
【Hybrid Corrosion-Resistant Build】6061-T6 aluminum shaft + 304 stainless steel coupler. Salt-spray tested (500hrs) for rust resistance in wet/rugged conditions
【Effortless Installation】Tool-free spacer adjustment enables seamless length matching. No specialized tools required—compatible with standard hex wrenches