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Hard rear suspension

PaulHW

Getting there...
Location
High Wycombe, UK
The rear feels very firm and I think I've worked out why. The springs on the stock shocks are progressive and just sitting on the bike most of the softer bit of the spring is compressed with sag ( I'm about only 13 stone with kit on so I'm a relative lightweight).
That just leaves the firmer top half to soak up the bumps.
Damping seems ok.
Any thoughts?
I'm tempted to get some hagon shocks.
They've been a long time in the business and a fine reputation.
 

Roy Gavin

Well travelled
Same with every progressive wound spring you will ever see, if you actually measure them there is no progressive rate whatsoever after rider sag.
And the close coils sag out solid PDQ too!
Have you looked at what TEC offers, I have a pair of fully adjustable TEC piggy backs on a BMW and the are surprisingly good for the price.
Hagons are fine too, as long as you buy them from a RE specialist, they can be of the firm side too!
 

StefArmstg

Well travelled
Location
Colorado
I'm guessing your GT has the same shocks as my '21 Interceptor.

l'm lighter than you, and thought the rear springs were too stiff. Since they were already at the lowest setting, heavier springs were needed.

I eventually realized that the springs were too soft, and the shocks were bottoming out. All it needed was to turn up the preload a couple notches.
 

Roy Gavin

Well travelled
Just a typo/brain fart.
But , yes, when tuning suspension sometimes it can be hard to tell which way you want to go.
And which end you want to change - if I added a bit pre compression to the rear of my BMW R75 when carrying a passenger and didn't remove it again solo it was the front that felt too soft, not the rear too hard!
Balance, front to rear is important too!
 

andif62

Well travelled
The springs are to soft and damping is to stiff. With more pre-compression riding is more stable but also more uncomfortable. Now I have YSS shocks installed and my Interceptor feels like a completely different bike. Stable and comfortabl!
 

PaulHW

Getting there...
Location
High Wycombe, UK
Same with every progressive wound spring you will ever see, if you actually measure them there is no progressive rate whatsoever after rider sag.
And the close coils sag out solid PDQ too!
Have you looked at what TEC offers, I have a pair of fully adjustable TEC piggy backs on a BMW and the are surprisingly good for the price.
Hagons are fine too, as long as you buy them from a RE specialist, they can be of the firm side too!
Not just me then 🙄
Hitchcock supply a special pair of hagon shocks for the 650 which looks good if I go for a change
 
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