gopdebeek said:Just got my first 1800, an 05. What do you recommend for suspension settings for two up (95% OF THE TIME) with total driver and passenger weight at 500 lb plus luggage?
Friend, without any intention of offending you, I'm gonna give you a little tough love here. The max load capacity of your bike is 417 pounds. Motorcycling has inherent risks. But at 500 pounds with a passenger, you're gambling your lives by riding this motorcycle. And don't even think of adding luggage. I just finished modifying the suspension for a fellow and his wife who weigh just over 500 pounds combined. This, after they had a rear tire explode on their previous GL1800. That little episode resulted in a totalled bike and a helicopter flight for two to a trauma center. They're both lucky to be alive, and they know it. The improved suspension will keep them from bottoming out - almost, but it won't do a thing to prevent another tire failure. If you're going to ride the bike loaded like that, it's critical to your safety that you insure the tires are always inflated to the maximum cold pressure shown on the sidewall. This fellow didn't, though he claimed he now knew how important it was. Before I began suspension work on his second Wing, I checked his rear tire - 30psi! The tire had 4,000 miles on it, and the tread was delaminating from the tire carcass. I talked him into a new set of tires and a SmarTire system to warn him of low pressure/high temp. Please - we'd like to have you around for a while. This loading issue is no joke, especially when the two of you are so far above the bike's capacity. Oh - the answer to your question (95% of the time) is #25.gopdebeek said:Just got my first 1800, an 05. What do you recommend for suspension settings for two up (95% OF THE TIME) with total driver and passenger weight at 500 lb plus luggage?
If I were you, I believe I'd have both tires set at max cold inflation pressure. I say that based on the condition of the tires on the bike I talked about above. Re: the suspension - no doubt Traxxion has a good setup that they can tune to your specific load requirements. As a bonus, they'll fix your preload adjuster if necessary, and it probably is. With the loads you're carrying, your adjuster should be fully functional, meaning it should start pumping down the spring before the #1 even appears on the display. If you're not doing the Traxxion thing, Progressive makes some good stuff, but I like Hyperpro's fork springs better. They prevent excess sag better and ride better, IMHO. The Progressive rear shock/spring combo seems to work well, and it provides a way to set it up with additional initial preload. The Catch-22 here is that it uses the OEM preload adjuster, so the thing will be no better than a stock setup if the adjuster isn't in top shape.gopdebeek said:Would upgraded suspension like Traxxion or Progressive be helpful? If so which specifically? Have always run my Metzeler 880 on my 1500 at 41 F 42 R. What should I run my tires at or just the sidewall max?
Didn't say it was. Yes, his tire was underinflated, just like 50% of all rear motorcycle tires are. That's why the SmarTire went on. At least now he'll have that amber icon flashing at him. What he does about it is out of my control. FYI, I think you'll find that 50/50 assumption is incorrect when rider and passenger weight is added to the basic bike. Dunlop's rally inspections have shown many Wings with well over 1000 pounds on the rear tire. :shock:Fred H. said:The added weight may have contributed to the failure by speeding up the heating process of the tire carcass, but I don't think it was the cause.