Hyperpro Progressive Fork Springs

[dancnman]

I put the hyperpro springs last year and I am not satisfied with the way they handle. I used the mfg. oil fill settings I don't think it is the best. Has anyone used this spring and if so, can you tell me what and how much oil you used?

Thanks

[h13man]

I haven't heard of this brand before. I was able to purchase a set 0f Racetech #80 which is the lowest rate they offer from a fellow member here as he found them too stiff. These area single wound and I weighing in at 165 lbs. they seem harsh at 1st. but they broke in after about 5,000 mi. and do really great for two up traveling (400 lbs.+), loaded, etc. I use 10w Belray fork oil as their TRUE viscosity is rated @ 10w. As for a progressive spring, I used the PRORESSIVE brand on my 1100 Spirit 5 yrs./33,000 mi. under the same conditions and started getting soft near the end of the that time period. They were excellent improvement on the Spirit but...

[Jess from VA]

A long time ago, I paid (large) to have Progressive Suspension fork springs put in.

When done, it felt like there were no springs at all, hard as a rock.

It wasn't the springs, it was too much fork oil.

I don't care what the manual says (volume or level), if it's hard, take some out and it should get better.

Even if you end up a few ounces less than called for.  

Also, later research showed that all fork oils (10wt or other) are not equal.

[sandy]

I installed Hyper Pros in my '05 wing. Love them and when my current valk needs seals, I'll get another set. In the wing I set the oil level exactly to OEM specs using HPs supplied oil.

[Bagger John - #3785]

I have them in my '99 Tourer. The bike is set up with an I/S trunk, tank and shocks and has the usual amount of additional chrome (mostly Hondaline and Kuryakyn, but a few assorted National Cycle and Show Chrome bits as well). It also has a Memphis Batwing and a full complement of electronics - gauges, CB and amateur radio transceivers.

Dressed in riding gear I'm around 240-245.

Used a mixture of Hyperpro and Maxima 15wt fork oil, slightly (1/4" or so) under the OEM fill level specs for each leg.

The stock springs had ~15K on them when I rebuilt the forks due to leaky seals. That said, handling is not harsh by any means but it's definitely more controlled. Feels good with a passenger too - I've taken a number in various weight ranges from 100ish to 200 and the front end never bottomed out.