POC Axion Spin Helmet - XL-2XL - Kalkopyrit Blue Matte eBay If you are after a

If you are after a straight forward solution to carrying up to 4 bikes on your tow ball

120 BCD - SRAM 2x10:

Compatible with: all the bikes

The mountin bolt is made from stainless steel and uses a torx head

POC Axion Spin Helmet - XL-2XL - Kalkopyrit Blue Matte eBay If you are after aThe POC Axion Spin inherits many of the technological innovations from previous models to create a Trail and Enduro helmet that provides exceptional coverage and some great features designed to protect your brain and neck in the event of an accident. The Axion Spin features new rotational liner technology developed by POC to be more comfortable than other systems on the market. SPIN (Shearing Pad INside) uses a silicon gel like membrane inside the pad