Join Date: May 2016
Location: Green Bay WI
Year/Make/Model: 2003 Vulcan VN1600 Classic
Color: Pearl Ivory
That is an upcoming project. In the past when I did this the spacers were at least 1.5" long, usually 3/4" size steel or plastic pipe coupler. Some times old valve springs from a VW Beatlle make great preload spacers. Generally, you want preload adjusted so the fork sag is about 1/2" when you sit on the bike, feet up. So it takes a bit of adjust/test, but generally the spacer preload goal is 1/2" sag.
For a pump, I plan to use a hand bulb, needle valve and gauge from a blood pressure test cuff. You can find them cheap on ebay, high quality, limited volume per squeeze, only need 15 psi like you said. And with the needle shut off valve you can leave it plumbed right into the system. Open the valve, hand pump the bulb to adjust the pressure or bleed pressure off, shut the valve off to separate the hand bulb and gauge from the system, go enjoy the ride.
I plan to use the same hand bulb, needle valve and gauge plumbed into the rear air shock system.
Oh, measured the rear shocks and they're only 12" eye to eye. So I'm installing a set of Nomad shocks with the air damping adjustment, which are 13" eye to eye. That still let's me totally flat foot the bike at stops. I prefer it to ride higher so I can get more lean clearance. I even plan to raise the floorboards 1" at least to increase my lean angle capability.
When life throws you a curve, lean into it!
Last edited by andyvh1959; 07-27-2018 at 04:38 PM.