Basically it's a stem that flexes (amazing that!) to absorb shock. It has a main pivot and a rubber elastomer. In other words it's a poor man's suspension.
The Ti version had a one piece bar/stem combo and was very expensive at the time (also quite rare and expensive now).
not a clue its not mine , just a pic from my archive they technically are cruisers but i dont think the geometry is far removed . it shows a longer fork on a older frame quite well though
"Also if you go up any steep hills you'll have to virtually lean over the handlebars to stop yourself from popping wheelies. "
headtube angle will be less of a concern , its the higher/ shorter reach to the bars that pushes your weight further back . the chainstay length would be more critical . imagine a head angle as slack as 60degree but with a low stem and flat bars . it would place more of the riders weight over the bars compared to a steep angle of around 76degrees with a very tall set of risers making the rider sit bolt upright and thus leaning over the rear wheel . thats only in a straight line of course . add in some turns and you would want something steep but with low bars still
So, 85mm fork changes the hight of the frame and the angle of the head tube...the original velocity stem was 110mm so would i need a longer or shorter stem to match the handleing of the original setup?
100mm forks set up with 25mm of sag will be no problem, in my experience.
OK, the feel is different to a set of 425mm A/C Project 2's, but it's just different, rather than better or worse. You'll quickly adapt to it anyway, forget about trying to "match handling".
Ahh, but my 1990 Fire Mountain is so near to perfect...it's hard not to want to match it! Thats what I'm aiming for, Fire Mountain sharpness with a bit of modern comfort. Maybe I ask too much
at the 85 mm itl feel kinda the same when riding because once you have set the fork itl work IN its travel . imagine the bike going over a series of bumps and dips the fork will be mid travel so over the rough stuff the angles are near enough the same . you will feel a little detached from the front wheel though . when you pull up the wheel wont lift off the ground the same amount as you pull on the bars , you would need to pull more to take into account the extra extention of the forks .