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I recently decided to replace my stock 31 yr old stock fork springs on my '80 GS1000G. A little info...the stock springs were about 17" long (at least now after 31 yrs) with a 3" metal spacer and I used 10psi air. I assumed the stock 10w oil was probably still in use but can't be sure. The ride was soft and a little mushy in the corners and tended to dive on hard braking. Sag was a little over 1.5" and unweighted fork length was just under 6".
I followed the directions included with the new Progressive fork springs for an 850G and cut the provided PVC for a 1.75" new spacer as there was no recommendation specifically for a 1000G listed. I did not use any air pressure and went with new 15w fork oil. After installing everything my sag was less than an inch, unweighted fork length was 6 3/8" and the ride was a little jittery and stiff, but the diving on braking eased up considerably along with a much tighter feel on the corners. This was with solo riding or 2 up riding and a full tank. I only weigh about 165lbs and barely over 300lbs combined with my wife. But I didn't like the total feel after 100+ miles and pulled the spacers out and cut 3/8" off each of them. I figured 1/4" would be a waste of time but thought a 1/2" trimmed off would be too much right away. My fork length was now 6" with about 1 3/8" sag. After my 70+ miles of commuting today, I felt the ride was more comfortable overall, along with a tighter feel in turns and not much dive on harder braking.
Overall, the bike is more sure footed but I am not necessarily satisfied with the overall ride.
Anyone else with a 1000G, progressive springs and about my weight tell me what measurement they used when cutting for spacer length?
I have fiddled with the original rear shocks and settled on the #3 setting for dampening and 4th stiffest (out of 5) for spring preload. I'm holding off replacing the rear shocks as I've tried those $75 MDI cheapo shocks on an '83 1100G I owned and think they are a waste of $ and not ready to spring for $300 shocks if my stockers are still doing the job for now.
Any other input is welcome.
I followed the directions included with the new Progressive fork springs for an 850G and cut the provided PVC for a 1.75" new spacer as there was no recommendation specifically for a 1000G listed. I did not use any air pressure and went with new 15w fork oil. After installing everything my sag was less than an inch, unweighted fork length was 6 3/8" and the ride was a little jittery and stiff, but the diving on braking eased up considerably along with a much tighter feel on the corners. This was with solo riding or 2 up riding and a full tank. I only weigh about 165lbs and barely over 300lbs combined with my wife. But I didn't like the total feel after 100+ miles and pulled the spacers out and cut 3/8" off each of them. I figured 1/4" would be a waste of time but thought a 1/2" trimmed off would be too much right away. My fork length was now 6" with about 1 3/8" sag. After my 70+ miles of commuting today, I felt the ride was more comfortable overall, along with a tighter feel in turns and not much dive on harder braking.
Overall, the bike is more sure footed but I am not necessarily satisfied with the overall ride.
Anyone else with a 1000G, progressive springs and about my weight tell me what measurement they used when cutting for spacer length?
I have fiddled with the original rear shocks and settled on the #3 setting for dampening and 4th stiffest (out of 5) for spring preload. I'm holding off replacing the rear shocks as I've tried those $75 MDI cheapo shocks on an '83 1100G I owned and think they are a waste of $ and not ready to spring for $300 shocks if my stockers are still doing the job for now.
Any other input is welcome.
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