Performance, tech explained
Vibration Damping & Chassis Calm
Not every hit is big. The chatter in between goes through fork and bar straight into your hands and forearms.
Video: Rhys Abel, Pexels
Mass damper
A small mass against chatter.
A tuned mass damper in the steerer swings against the front end and takes away its resonance. The heavier it is in proportion, the flatter the peak.
Two masses, tuned after Den Hartog. As an example, a front-end resonance at 35 Hz with 5 % damping.
Tyre insert
More reserve before the rim.
An insert catches the last millimetres. The tyre carries more before the rim hits, and you can run less pressure.
Model of a 29 × 2.5 inch tyre on a 30 mm rim: air carries pressure times contact patch, 20 mm tall insert, rim strike at 46 mm deflection.
Parts
