Progressive Suspension New Technology 1″ Lowering Touring Shocks

There are many lowering shocks for touring bikes on the market. Unfortunately many are sacrifying the suspension travel, so the ride comfort. These new “940 Ultra Touring Series Shocks” from Progressive Suspension are specifically designed to deliver a comfortable ride at a 1″ lowered stance. They sit lower than full length shocks (13″ eye to eye) but retain all travel for an ultra smooth ride while offering a 1″ lowered ride height. Built around Progressive IAS technology, a Secondary Spring allows both full droop travel AND lowered stance. For all Harley-davidson models from 1980 to 2010. Progressive suspension.

8 Responses to “Progressive Suspension New Technology 1″ Lowering Touring Shocks”

  1. 1 Todd8080 May 27th, 2010 at 7:36 pm

    I’ve re-read this post several times and still come to the same conclusion: Either I’m missing something or these shocks can defy the laws of physics.

    If the shocks are shorter than OEM shocks and cause the bike to sit one inch lower than stock, how can they possibly “retain all travel”?

    Shorter shocks will position the wheel closer to the fender. How then can the wheel still travel the same distance upward when the bike hits a bump?

  2. 2 Greg May 27th, 2010 at 7:53 pm

    The shock travel is not dependent uniquely from the shock length or even spring length. Shocks with same length don’t have necessarily the same travel. It depends of the type of spring and spring technology. A shorter spring can have the same travel or even more than a longer shock. Comfort has to do with spring compression but also its rebound. If the bike is lowered 1 inch, clearance to the fender has to be revised.
    Still, the bike equipped with these shocks will be 1″ lower but still offer the same travel as a 1″ longer shock.

  3. 3 Patrick R. May 27th, 2010 at 7:57 pm

    I agree with Greg explanation. Shocks of the same length don’t have the same characteristics of compression and rebound. Longer is not necessarily better. Shorter is not necessarily worse. Cyril should have added that travel is in reference to Harley shocks of the same bike models

  4. 4 Just Another No Longer May 28th, 2010 at 7:11 am

    All I can say is I ride a 95th anniversary Ultra with factory air shocks (lowered) and the ride still remains the same…..rough and for this 5’6″ rider any increase in comfort is a welcome…..My question is…does the warranty allow returns if not satisfied??

  5. 5 Dave May 28th, 2010 at 9:32 am

    No laws of physics are broken here! The 940 Series Shocks retain all of the down (droop) travel of a 13″ shock. While up (bump) travel is lessened by 1″. The result is a lowered shock with minimal impact on ride quality. They are guaranteed for life as well.

  6. 6 Todd8080 May 29th, 2010 at 10:07 am

    Dave said: “The 940 Series Shocks retain all of the down (droop) travel of a 13″ shock. While up (bump) travel is lessened by 1″.”

    If up travel is lessened by one inch then “all travel” is not retained.

    I’ve lowered many, many Harleys using every known brand of shocks and I can tell you that the lower you go the less swingarm travel you have, period. There can be no exceptions to this rule, not because of the brand of shocks used but because of the reduced distance from the tire to the fender.

    If you have 3″ from the top of the rear tire to the underside of the rear fender and you reduce that distance to 2″ using shorter shocks, the wheel can no longer travel upward 3″ no matter how much you’d like it to.

    Progressive makes very good shocks, in fact I have them on my own Harley, but I don’t believe they can perform actual magic.

  7. 7 Indy Road Dog Jun 1st, 2010 at 12:57 am

    I’m with Todd on this. I skipped buying these for the reason that the compression travel is too short. When this shock is installed the flat, 1″ spring travel will be completely taken up and therefore adds nothing to the compression performance.

    That’s what you want when you hit a bump. If it floats up an extra inch, I get nothing out of that. The impact is already felt. This shock is pure marketing, little engineering.

    Buy a shock with more true travel for better comfort. The 13.5″ 440s offer about 3.5″ of travel. Much more than the stock 2″ and what the 940 is providing. The damping performance is very important to performance also and that’s where the good shocks rise to the occasion. Ohlins are good there, and I hope the 440s since I just bought a pair, but haven’t tried them yet.

    Don’t buy into the 940s hype about a 13″ shock riding like a 12″ shock but still performing like a 13″. Shock travel is what absorbs bumps, not shock length, and travel is not determined completely by shock length. It depends on the shock design.

    Another key point; check the the full compressed length of a shock. Subtract the travel from the overall shock length. The stocker for example on the new RG is 12″ with 2″ travel thus giving 10″ compressed. This should be a safe number to use when selecting shocks. So, if you buy a 13.5″ shock with 3.5″ travel, you would have the same compressed length of 10″ as the stocker.

    If HD was protecting themselves against the liability, 10″ compressed will still leave a safe clearance between tire and fender. Check any shocks you are considering for this, otherwise the new shock could allow a tire rub under a big bump.

  8. 8 greg Aug 9th, 2010 at 5:49 pm

    Are you guys nuts? I have a 07 FLHTPI , and it rides like shit….if you want to see how a bagger should ride with factory shocks….get on a Royal Star ,thats right Yamaha…..the thing has 3.7″ of travel and it feels like you are on a cloud…….Harley needs to fire the suspension expert…..The guy must ride a Hardtail.

Comments are currently closed.
Cyril Huze