This aftermarket belt breakage issue has really been bugging me for some time. After returning home from a 3K Montana trip, I sold my 09 107" to a good friend.
He made it about two blocks and the Falcon belt snapped. Did I get lucky to make it home or what? Needless to say the bike was brought back to my shop with a simple WTF
are you going to do about this? I had already been thinking about the possibilty of a tentioner pulley and started heading in that direction. Then I got this idea about the possibilty of lengthening the swingarm a 1/2 inch instead. I decided to check the actual amount behond the stock rear adjustment that the axel needed to go and was surprised to find it was less than 1/4". As a fabricator, what came next was easier than I ever imagined.
This thread is intended to show a simple way for a fabricator to modify your swingarm and run the 30T with the stock OEM belt. I have no plans of offering this swingarm mod. Sorry.
Steve George
Fullsac Performance
Pic 1,
A simple gusset was welded to the rear of the swingarm to allow .200 of material to be removed with out weekening the axle slot.