Double Ovalized Stem
Custom stems have almost unlimited geometry and tubing options.
The internal guide can point to left">

Double Ovalized Stem Custom stems have almost unlimited geometry and tubing options. The internal guide can point to left"> Double Ovalized Stem Custom stems have almost unlimited geometry and tubing options. The internal guide can point to left"> Double Ovalized Stem Custom stems have almost unlimited geometry and tubing options. The internal guide can point to left, right or straight forward.  No guide is needed for most front suspension equipped bikes. I came up with this stem in late 1979. Many companies have copied this design, most have done it very poorly.