Hi, I have recently purchased a '99 GT STS XCR1000 in nice, original condition. Lovely looking thing (if you ask me).
I was wondering if there is anyone with experience of the XCR era bike to help with what I might be looking at.
I am trying to pressurise positive and negative ends of SID rear shock to suit my weight and have queries about the sag.
On this version of the idrive system there are red markers on the various components that rotate in the bottom bracket area. To get the perfect sag, the online guide shows that the aim is to have enough positive pressure in the shock that red markers all line up with your weight on the bike (86kg). Negative is then adjusted accordingly.
However, on mine even with all air removed from both ends and the bike lifted of its wheels, the red arrows still perfectly lined up - i.e. it shows that 0 sag is the perfect position which seems to defeat the point of having perfect sag pointers and would be a bit weird.
I feel like i am missing a trick and that possibly one component in the chain is misbehaving.
Trying to start from scratch.
-Degassed shock fully
-Disconnected front derailleur cable in case it was interfering with action of rear end
-Disconnected shock, checked suspension travels correctly through its full range
-Rotated idrive components in their housing and checked for smoothenss.
-With no air pressure, checked shock travels correctly through stroke
Shock measures 6.5" centre to centre eye and looks to be the same type and design as all other STS XCR1000 i can see.
First image. With shock installed correctly, all idrive red dots line up when shock is stroked all the way out and swing arm is at full droop. This would mean I am setting no sag to hit all the red dots lined up.
Second image. With shock bottom eye disconnected (red and green lines) and allowing swingarm to drop until it is touching frame it looks like it makes more sense. Red dots are rotated apart. This seems logical as it would then mean that i have some sag and can then use air pressure to fine tune sag.
Third image (bolts either removed or undone but dog bone still correctly in place). Only other observation is that it has a BETD dog bone installed, briefly tried to disconnect it but BB lock ring will need removing first and didn't have tools to hand. If this was wrong length / version for my bike the i guess it would cause inner red dot to be rotated incorrectly. Dog bone is approx 63mm centre to centre.
I was wondering if there is anyone with experience of the XCR era bike to help with what I might be looking at.
I am trying to pressurise positive and negative ends of SID rear shock to suit my weight and have queries about the sag.
On this version of the idrive system there are red markers on the various components that rotate in the bottom bracket area. To get the perfect sag, the online guide shows that the aim is to have enough positive pressure in the shock that red markers all line up with your weight on the bike (86kg). Negative is then adjusted accordingly.
However, on mine even with all air removed from both ends and the bike lifted of its wheels, the red arrows still perfectly lined up - i.e. it shows that 0 sag is the perfect position which seems to defeat the point of having perfect sag pointers and would be a bit weird.
I feel like i am missing a trick and that possibly one component in the chain is misbehaving.
Trying to start from scratch.
-Degassed shock fully
-Disconnected front derailleur cable in case it was interfering with action of rear end
-Disconnected shock, checked suspension travels correctly through its full range
-Rotated idrive components in their housing and checked for smoothenss.
-With no air pressure, checked shock travels correctly through stroke
Shock measures 6.5" centre to centre eye and looks to be the same type and design as all other STS XCR1000 i can see.
First image. With shock installed correctly, all idrive red dots line up when shock is stroked all the way out and swing arm is at full droop. This would mean I am setting no sag to hit all the red dots lined up.
Second image. With shock bottom eye disconnected (red and green lines) and allowing swingarm to drop until it is touching frame it looks like it makes more sense. Red dots are rotated apart. This seems logical as it would then mean that i have some sag and can then use air pressure to fine tune sag.
Third image (bolts either removed or undone but dog bone still correctly in place). Only other observation is that it has a BETD dog bone installed, briefly tried to disconnect it but BB lock ring will need removing first and didn't have tools to hand. If this was wrong length / version for my bike the i guess it would cause inner red dot to be rotated incorrectly. Dog bone is approx 63mm centre to centre.
)
