Congratulations to the new Schlumpf user!
Just a few days ago, a Schlumpf speed drive was ordered for my second, silver Strida 
At the moment I’m printing the installation manual for workshop use 
http://www.schlumpf.ch/hp/handbuecher/WHB.sd.engl.pdf
Looking at strida suisse I would say their prices are…mmm…fascinating? 
http://www.strida.ch/