The strangest – and most strangely triumphant – moment on “The Idler Wheel…” ...
The front idler holds the track chain in proper alignment while the machine is traveling and acts as a shock absorber and chain tensioner." He adds, "The upper rollers carry the chain in alignment ...
Using what they call an i-track configured idler location, the idler pully helps to manage chain growth and pedal kickback. Combined with a revised anti-squat curve to improve pedaling efficiency ...