The top section is designed with a concave top for shedding water and debris. The bottom is designed with a built-in convex gusset for added strength and rigidity along the entire length of the tube. The middle section walls connect the top and down tube sections with a weldless connection for maximum strength. There is no heating of the material or welding that can result in lowered material strength or inconsistencies. 3VH stands for Three Void Hollow, which is how the front triangle starts in the factory.
Extruded tubing is inherently strong due to grain alignment in the material.
Add Marin touches, such as varied wall thickness and a built-in gusset on the bottom, and you have one of the strongest front triangles available. All Marin 3VH frames feature a standard full length seat tube, which allows for the full range and ease of saddle-height adjustment that riders have demanded of mountain bikes for over a decade. After proving itself in our Team DH and Wildcat Trail frames in 2000, we are expanding the use of this frame technology into our E-XC Full Suspension and BMX Race categories. Strong, light, exceptional ride performance and a beauty to behold all the elements that you look for in a frame and have come to expect from Marin. After four years of continual refinement, the Marin monopivot design has reached new levels of performance and reliability.