Not original owner quite sure no mods were done from original. Thinking swing arm is made for more than one model ?Going to take a stab and say it's to adjust your peg in case you need clearance from aftermarket pipes?
Are you the original owner?
Take a pic not so close up ! May helpNot original owner quite sure no mods were done from original. Thinking swing arm is made for more than one model ?

Winner, winner chicken dinner!Possibly for a belt guard?
That's why there's a hole there.... Duh....Belt guard ? I've never had one there that I know of
I originally looked at the pics and his bike listed under his avatar, 2011 Mastiff but was confused because the belt was inside the frameI cant freaking believe someone that owns a Mastiff hasn't gone out to look at their bike to tell you what this hole is for...Dumbfounded!!!!!!!
and I thought rear belt guard mount but mine is above the belt, so then I see he stated it was for an 05' DAH
. 06'nd up have the 300 and the belt guard is above the belt. But I think someone removed the belt guard and never put it back on, cause the hole is used or did they just run a tap in it to clear out the powder coat.
I was thinking da same 1 bolt hole under the belt??I originally looked at the pics and his bike listed under his avatar, 2011 Mastiff but was confused because the belt was inside the frameand I thought rear belt guard mount but mine is above the belt, so then I see he stated it was for an 05' DAH
. 06'nd up have the 300 and the belt guard is above the belt. But I think someone removed the belt guard and never put it back on, cause the hole is used or did they just run a tap in it to clear out the powder coat.
Here's the 07'
View attachment 35703
