Urethane rubbers are supplied as standard with reinforced stabilizer bars (19 mm diameter). If a replacement is required, or if you require an improvement to what is supplied, these are also available separately.
Replacement rubbers are an improvement to the rubbers supplied, they are grooved on the inside for better grip on the bar, they are stiffer for better handling and for easier mounting they are split.
The rigidity of the urethane also has an unpleasant property on the stabilizer bar, namely squeaking noises when the stabilizer bar does its job. To counteract this, a special urethane grease is included. In addition, the grease makes assembly easier.
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