HDS-short for Horizontal Dual System- is the primary principle behind the optimal balance of ride characteristics in Argon 18 bicycles. For more than a decade, the HDS concept has remained the central, unchanging tenet behind all the development work at Argon 18. HDS is why those who try an Argon 18 usually point out the bike’s remarkable road manners and brilliant performance. Our tests confirm that our bikes are at least as rigid as the majority of products on the market but also more comfortable. How do we manage to combine these often mutually exclusive qualities?
The basic idea is simple: different frame tubes carry different loadings and stresses and one way to differentiate between the two primary types of loading is to divide the frame in upper and lower sections along a diagonal line spanning the frame from the upper headtube to the rear dropouts.
A number of elements are involved in achieving this:
Achieving optimal balance is a balancing act, a delicate tweaking of many factors and details. The real value of all this is something you can readily feel on the road.