These kits add to the BMW ESA system a better hydraulic feedback and a performance stability that are typical of a product made without compromise.
More, the hydraulic braking adjustment in high and low speed, grants high level customized adjustment
VXU 90 : original spring, very good improvment, very good price quality level.
VXU 91 : BITUBO spring available in different K rate, good adjustment on your how needs
TECHNICAL FEATURES VXU90:
REAR MONOSHOCK with separate tank
Original spring, with adjustments:
TECHNICAL FEATURES VXU91:
REAR MONOSHOCK with separate tank
BITUBO spring, with adjustments:
BOX INCLUDES: specific assembly instruction
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