TDI (TUNGLOK DECK INTEGRATION) US PATENT #8,528,921
TDI is a system of compatibility. This system was designed so that the deck (DEX) and neck (NEX)/headtube are separate components that are mated together utilizing a tongue and groove system with bolts to keep everything in place. The TDI system allows for interchangeable neck/decks allowing for maximum customization and upgrades of a single deck or neck. When your deck wears out on a TDI system you only need to replace the deck itself instead of the entire neck/deck assembly like a one piece deck. TDI has been rigorously team tested under the feet of a long list of some of the most talented, progressive and influential street riders world wide.
Watch the original TDI Debut Video to learn how it works
Watch PROTO White board / TDI Part 2: Development and Benefits