Flexy handleposts and noodly handling are the Achilles heel of many folding bicycle designs. The Physis 3D-forged handlepost solves this with a massively strong, precision machined design that virtually eliminates flex. The Physis is 3D-forged from a single piece of aluminum, eliminating welds to give a stronger, lighter and more cost-effective part. The Physis uses four new patented technologies and is 100% serviceable, so all parts can be replaced if needed. It has Nor-glide bearings for smooth operation and rubber seals to protect headset bearings. Two bolts clamp it to the fork steerer for extra safety compared to other handleposts.