what would cause "bagger wobble in a straight line doing 90 + mph and not in turns doing 75 mph

 

Mine was caused by a variety of reasons, or I should say a variety of changes and repairs took care or it.

Grease and tighten the steering neck bearings (Probably the main one for me)
Tighten down the handlebar riser bolts
Check tire wear and airpressure
Be aware of road surfaces (my really BIG wobble came in rain grooves that were spotted with white DOT dots that I rode over while lane splitting.

Keep us posted.

Mark

 

mine use to do it at about 85, after I put on the bagger brace it has never done it again

 

check out this site...www.bitchenbaggers.com.

They have a really nice brace that will help with that. I never had bagger wobble on mine but I did put this brace on to help keep my bike on a straight path when I get in road grooves. It also, for what ever reason seems to help with strong cross winds and buffering when I pass 18 wheelers.

 

Edited the URL above...no"www." in this site's URL....
Thanks for the link- I went to the site and they custom lower your stock Showa shocks!

 

I forgot to mention in my earlier post that I have one of those RideStr8s on my bike too. But the one thing that I feel made a difference was lubing and tightening the neck bearing.

 

+1 and good timing. Just started a thread on this today.

 

the bike in question is a 2009 sg , lowered 1 inch (progressive) in the front and 1 in the rear with very well made blocks, 21 front 18 rear pm wheels will this additional info help in nailing down this issue

 

Tire condition is also a big thing. As tires age (not just their wear) the cords break down and you lose some sidewall stiffness. Add if you've ever run low on pressure, add to the mix if your steering head bearings aren't on the tight side and well lubed. Ever notice how much better your bike handles after adding fresh rubber? A bagger brace helps. If you have a tire oscillating, with the bagger brace, it keeps the rear mounts, bushing from joining in on the fun. I've got the progressive suspension link and am happy with the way it works.

 

So do I, love it.