Front Spring Box Removal
- Thread starter youngjohn
- Start date
YoungJohn,
If the loop is on the flat, which is on the back of the spring box, and the ratchet hook is on the front of the spring box, I have never had one slip. I have had the knot in the nylon rope slip, so make sure it is tightening as you up the pressure on the tie down.
David
If the loop is on the flat, which is on the back of the spring box, and the ratchet hook is on the front of the spring box, I have never had one slip. I have had the knot in the nylon rope slip, so make sure it is tightening as you up the pressure on the tie down.
David
Bill,
I think this area is a tricky one and I am not an engineer. The trail goes silly as it approaches full extension. You can verify this by watching the front wheel as you let it down off a jack. The wheel rotates substantially as you start and then much less as the springs compress. If you grab the brake at or near full extension the Girdraulics seize for the simple reason that the trail has to change for the forks to move up and down. With the brake engaged it is difficult for the trail to change and correspondingly the fork cannot compress. Originally, I designed a new triple tree that changed the geometry of the Girdraulic so this would not occur. Later after studying the Brampton I realized that if I used a spring with no preload, it would bias the suspension toward compression. “Weak” and “Strong” can be confusing words with reference to springs. My springs seem to be much stronger because of the higher spring rate, 110 pounds per inch versus 50 pounds per inch for the Thorntons. However, with no preload the effective starting rate is near zero. This makes them quite compliant. The weaker Thorntons or stock springs have as much as 300 pounds of preload, so in reality they are quite difficult to compress when mounted.
David
I think this area is a tricky one and I am not an engineer. The trail goes silly as it approaches full extension. You can verify this by watching the front wheel as you let it down off a jack. The wheel rotates substantially as you start and then much less as the springs compress. If you grab the brake at or near full extension the Girdraulics seize for the simple reason that the trail has to change for the forks to move up and down. With the brake engaged it is difficult for the trail to change and correspondingly the fork cannot compress. Originally, I designed a new triple tree that changed the geometry of the Girdraulic so this would not occur. Later after studying the Brampton I realized that if I used a spring with no preload, it would bias the suspension toward compression. “Weak” and “Strong” can be confusing words with reference to springs. My springs seem to be much stronger because of the higher spring rate, 110 pounds per inch versus 50 pounds per inch for the Thorntons. However, with no preload the effective starting rate is near zero. This makes them quite compliant. The weaker Thorntons or stock springs have as much as 300 pounds of preload, so in reality they are quite difficult to compress when mounted.
David
more like red mist, damp patches and 1275cc of power....
Hello Tim, I have been trying to work out what to do with 1/2 a broom handle !! I make that about 2 feet, Answers on a £20 note!! I think you forgot the inch sign, Have Fun Bill.