The whole “composite fiber” range uses
sheaves on composite fiber bearings and
double self-captive Delrin ball thrust bearings.
Antal's sheaves are easy to dismantle for
cleaning and need no lubrication.
The sides are made of 3571 TA16 light alloy
and are thickly anodized to ensure absolute
wear and corrosion proofing, with all the
edges smoothed off for better handling.
The nuts and bolts have been replaced with
recessed screws and pins, considerably
reducing weight and eliminating any projecting
The steel coupling revolves on a fiber washer
and can easily be locked in one of two main