29-07-20, 07:30 AM
Mate as said you're trying to fix one error by another.
You tell us the Hyperpro springs are too hard and you replaced the standard spring with with the Hyperpro presumably as they were too soft?
You're now trying to soften the Hyperpro spring as they're too hard/harsh? You plan to do that by reducing their preload by 10mm or so, by cutting down the spacer tube, all that will happen is the bike will settle back down and alter the rake.
Why, the standard set up has no real preload to speak of :rolleyes and the effect on the spring preload will be minimal as the spring rate is too hard for your weight.
What makes far more sense is to put the standard spring in and preload that to the correct sag as if it was too soft, which you can easily add/remove preload as I mentioned in one of my previous posts, to get to the correct sag. From there you can play with the oil to improve the dampening. You only weigh 68kg most of my customers weigh at least 25- 30 kg more than you, some even more. I've sorted most of their front ends by just preloading the standard spring and few playing with the oil weight and yes reducing the air gap. Others who tour or often go 2 up, I've fitted Hagon springs which are pretty much the same as Hyperpro only English. They like you wanted to improve the standard set up without spending a fortune. Others (mostly tourers and larger customers) and the best way to go is to upgrade the whole front internals with a cartridge and spring kit, or let one of the many suspension company's re-engineer your standard shim pack, dampener etc, none of which is cheap.
It's up to you, muck about with PVC and washers, cut the standard spacers, or just preload the standard spring with cheap and easily fitted discs, which can be removed and the bike returned to standard when you sell it on.
It's your choice and I wish you luck.
You tell us the Hyperpro springs are too hard and you replaced the standard spring with with the Hyperpro presumably as they were too soft?
You're now trying to soften the Hyperpro spring as they're too hard/harsh? You plan to do that by reducing their preload by 10mm or so, by cutting down the spacer tube, all that will happen is the bike will settle back down and alter the rake.
Why, the standard set up has no real preload to speak of :rolleyes and the effect on the spring preload will be minimal as the spring rate is too hard for your weight.
What makes far more sense is to put the standard spring in and preload that to the correct sag as if it was too soft, which you can easily add/remove preload as I mentioned in one of my previous posts, to get to the correct sag. From there you can play with the oil to improve the dampening. You only weigh 68kg most of my customers weigh at least 25- 30 kg more than you, some even more. I've sorted most of their front ends by just preloading the standard spring and few playing with the oil weight and yes reducing the air gap. Others who tour or often go 2 up, I've fitted Hagon springs which are pretty much the same as Hyperpro only English. They like you wanted to improve the standard set up without spending a fortune. Others (mostly tourers and larger customers) and the best way to go is to upgrade the whole front internals with a cartridge and spring kit, or let one of the many suspension company's re-engineer your standard shim pack, dampener etc, none of which is cheap.
It's up to you, muck about with PVC and washers, cut the standard spacers, or just preload the standard spring with cheap and easily fitted discs, which can be removed and the bike returned to standard when you sell it on.
It's your choice and I wish you luck.
Later