Only problem with the black box speedo corrector is it only works on electronic speedometers, not mechanical ones like the Savage. Another solution is installing a bicyle type speedometer with a pickup installed on the front wheel.
If one does a search on the message titles in the "Forum" tab on the following webpage:
http://www.heise-workstations.de/ls650/LS650-e.html
will find a description on how to do this.
- Laters, George