Complete service of BMW Electronic shock fitted to models such as the R1200GS, to fix issues with loss of damping, which is common on these bikes:
Complete disassembly, inspection and cleaning of shock.
Replacement of seal head with a new unit, inluding the sels and guide bush.
Polish shaft and remove pitting if needed.
Rebuild with high performance suspension fluid.
Recharge with Nitrogen
 
Powder coating of spring not included, this can be carried out as an extra.