The design of the Shadow Truss rim is focused around the same principles as modern bridge design in architecture. Considering the effects of compression as well as tension, the Shadow Truss rim is designed as a very rigid structure and one that transfers the load from a single point to a considerably wider area. These details create a stronger and more impact resistant rim to keep you rolling ###section### Product Specs WHEEL SIZE: 20" SEAM: Welded ERD: TBC HEIGHT: TBC WIDTH: 38mm SPOKE HOLES: 36h WEIGHT: 503g / 17.75oz Colour: Black, Crimson Rain, Raw Polish, Skeletor Purple