Since 2008, SilverbackRC has produced the strongest possible beadlock, manufactured from ballistics reinforced composite polymers. We have once again taken another look at our original design and looked at ways that we can further improve upon it.Our v2 lipped outer beadlock rings now contain a raised profile which acts as a bumper to deflect from side impacts. We have also increased the lip thickness by a MASSIVE 70%, plus increased the profile under the screws by a further 13%. These enhancements improve upon the protection for the sidewalls of your tires.Independently tested in laboratory conditions against every plastic beadlock manufactured to date (July 2012). Our products blow the competition away in terms of flexl strength, and impact resistance, at temperatures ranging from -23 degrees to +60 degrees Celsius. Nothing gets close!Sold conveniently as a set of 4 outer rings for optimum weight saving & durability. Beadlock screws are not included with this set, but are available separately (part # nc160).Suitable for HPI Baja 5B/5SC/5T, and Losi 5ive-T models.