Hmmm I am looking at the diagram on Bike Bandit, it shows the Speedmaster has 2 holes in it, like you mentioned. What are they for? Weird.
When you say do the front also, you mean change the fron fork springs? If so, suggestions?
http://www.bikebandit.com/oem-parts/2009-triumph-speedmaster/o/m147296#sch631517
