Hagon Shock

Red Duke Rider said:
I don't have my shop manual handy - it's at my other house. What is the total travel of the rear suspension per Honda? Doing some reverse math, if 30 mm = 25% of shock travel, and 40 mm = 33% of shock travel, then total travel should be 120 mm (4 3/4"). Did my college education serve me well?

I agree, dynamic sag should be on the order of 1/4 - 1/3 of total shock travel.

BTW, 1?" static sag would be way too soft a spring IMO.
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I missed your use of the word Dynamic in the previous post. I'm not sure I understand how you use that measurement - or get it. If you want the travel to remain in the upper 33% of available distance while under way (dynamic sag??) I think you would have to have a much stiffer spring than the 900-1300 lbs we have been using in these suspension threads. That sounds like a punishing ride to me. The 25-33% Static sag number in theory allows the shock to work over it's entire range of travel when under way.

The service manual gives rear travel as 123mm or 4.84".
 
Rob Hephner said:
I'm really wondering if the spring rates I am seeing thrown around are truly needed, are you guys seriously bottoming out a 1000 lbs spring?
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2-up in touring trim, it's happened. It's the loss of cornering clearance that concerned me more.
 
I've also bottomed out riding two up. I ride with the preloaded adj. at 80% single. with two-up all bags loaded I have very little travel left for bumps or potholes.
 
The max load capacity is 418lbs. That's not allot when you start adding up rider + gear + pillion + gear + accessories + luggage. 418 is the max, that would be with the preload all the up and if Honda is like most manufacturers the max limit would leave little room for error in the best of conditions. In fact it may only be under perfect conditions.
 
dduelin said:
I missed your use of the word Dynamic in the previous post. I'm not sure I understand how you use that measurement - or get it. If you want the travel to remain in the upper 33% of available distance while under way (dynamic sag??) I think you would have to have a much stiffer spring than the 900-1300 lbs we have been using in these suspension threads. That sounds like a punishing ride to me. The 25-33% Static sag number in theory allows the shock to work over it's entire range of travel when under way.

The service manual gives rear travel as 123mm or 4.84".
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Dynamic sag is the sag of the rider and bike together.

Static sag is the sag of the bike only.
 
The only sag that has meaning to me is with me on the bike.
 
Agreed. Then that is dynamic sag. It is not unusal on some sport bikes to have as little as 0-5 mm of static (or sometimes called initial) sag.
 
I be a 57 year old engineer too. The way I am using dynamic and static in this thread is the manner that suspension tuning shops would use the term. Not whether the bike is in motion or not.

If it would make you feel more comfortable, how about the terms loaded sag and un-loaded sag?
 
From a life-long dirtbiker, the terms are known as Static sag (bike alone as taken off centerstand) and Race sag (geared up rider sitting on bike in garage). The Race sag is the 25-33% - Static sag is much less.

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