or Connect
New Posts  All Forums:Forum Nav:

Marker Piston Bindings

post #1 of 6
Thread Starter 
Marker has alot of different piston bindings on alot of different skis.They claim it helps control the skis rebound and helps set up the next turn. Alot of high end ski systems that use Marker have it. Any opinions?
post #2 of 6
here we go. this thread will illicit all kinds of feelings.

try searching under piston and see what you come up with.

there are two pistons in high end marker bindings: the comshock piston and the "piston control" piston. there are actually few differences between the bindings with these features.

bindings with a din 3-12: may have the piston control plate (if you opt for it), and ti construction in the heel for lightweight.

bindings with a din 4-13: comshock piston, ti construction, and the piston control plate (if applicable)

bindings with a din 5-14: comshock piston, steel construction for durability, and the piston control plate if applicable.

i recommend the marker website www.markerusa.com for a full explanation of what these pistons do.

if you are looking at systems that have pistons built in, that piston operates on the same principles as the piston control plate. there are often loads of other (sometimes) intelligible letters and abbreviations in the name of the ski/integrated system. the best way to understand the whole name of the system is to go the ski manufacturer's website. using the din range on the available binding you can match to my simple list up top.

if you have specific questions, private message me.
post #3 of 6

I had a different understanding of the two


Tell me more what you are saying.

I thought the ComShock piston in the toepiece was related to release values, an attempt to not have the toe pre-release because of a momentary impact but still release if the forces weren't temporary.

The piston mounted between the toe and heel (no matter how far the attachment arm might project to the front) was to act as a dampening shock absorber on the front of the ski as the ski is released from a carve and is not at all linked into the release mechanism of either the toe or the heel.

I'm not a ski tech or anything, so I won't have any problem accepting what you are saying, but I was surprised to hear them lumped together and didn't really understand.
post #4 of 6
IMO, pistons are a great example of good engineering run amuk. I've skied Volkls for a long time, have used 5*, first year 6* and last year's 6* with various piston controls.

Less impeded flex was a great idea, obviously. Pistons seemed like a great idea, too. But as the pistons went from air to oil, and more tip control bits were added, like the current steel spring/oil piston in front of the binding, the skis lost feel in front, became less supple. No fun anymore. Note that rave ski reviews of the 5* tend to test the Lt Step version, not the piston.

I'm sure a lot of posters will disagree...
post #5 of 6
Interesting, I skied the 6 star without the pistons last year. I installed the PCOS system on those skis a couple weeks ago. If the action is adversely affected, I won't hesitate to remove them...very easy to do. Most feedback is that it helps to dampen the vibrations in the ski from rapid reboud, but the slow decambering in the carved turn is not affected.
post #6 of 6
gandalf -

you are right on. your explanation of the difference between the functions of the two pistons is exactly accurate. what i was trying to explain to highpeaks, who seems to be confused by all the technology and different binding names on all the different systems, is that there are base technologies called comshock and piston control that are shared among many models with many different names, but they all act the same.

beyond -

if you don't like the piston control, don't install it. it's that easy. also, i would re-designate what you call a steel spring an actuator - it's job is to transmit the flexing of the ski to the piston so the piston is compressed over smaller flexes so the ski's rebound can be controlled. again, if you feel the piston control negatively affects the performance, just don't install it.

cirque -

you are right on in your description of the action of piston control - it only controls the rebound of the ski coming out of the turn - turn initiation should not be any different. i think those people that feel a difference are actually feeling a difference in the rebound/tail energy of the ski and how it is felt/applied during the transition between turns, where there really is a noticeable difference.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Ski Gear Discussion