hi torquenm
Ordered the prog springs through
www.bike-revival.co.uk here in the UK. Had to wait for them to come in but if you are in the states then your wait should be shorter. Steve at Bike revival certainly knows his biz. There were a few probs getting a spring to fit with the hepco jun 30 panniers as the clearance is tight (Hagon Nitro's my original choice would not fit) but revival sorted out Progressive 412 with uprated springs (note the HD range with full length covers also have clearance probs). The shock ref is 412-4226c which is for the Goldwing but the spring rating is 120/170 which is lighter than the Goldwing but heavier than the std bonnie/thrux.
All I can say it is brilliant and that bike revival have been great. She really loves cornering, almost could say that she falls into them so cornering is a dream. I certainly feel a lot more sure footed now that the wallow and scrape have gone. I am 6'4" and 285lb and swmbo is 155lb Even two up ther is no noticable difference in handling. You will need to get 2 extra bush liners (metal sleeves) as the kit for the goldwing only has 2, whereas you need 4. But prog will supply these at no extra charge with you order. likewise the kit has 4 big spacer washer for the top mount, these are not needed.
Hope this helps and good luck. best money I have spent on her yet! let us know how you get on.
[ This message was edited by: petjamrut on 2006-09-28 14:41 ]