K-Tech (here in Edenbridge, Kent) did my Fazer 1000's forks and also serviced the Ohlins rear shock for the same bike. Customer Service was a little patchy but the work was top notch.

S

MCT suspension of Stowmarket are the boys ....

http://www.mctsuspension.co.uk/Home.html

..... they have done an awful lots of superdukes/ SDR's of guys on the forum and a lot of the Battleduke series if i remember correctly.

just got my sdr shock back from mct great service and quick turn around