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Backseat Boots

post #1 of 8
Thread Starter 

Hi Folks, looking for a bit of advice


Two seasons I got a pair of nice new shiny boots, Tecnica Cochise 110's,


Lovely pair of boots, reasonably light, all day comfort and walk mode.


Only problem is that it felt like I was being pushed over the back of the ski's all the time, I couldn't get centred.

Ski's are K2 Hardsides with Marker Barons. Old boots were Lange CRL FR80's ( no problems with that combination)

I was thinking the fact the old boots were a lot softer was allowing me a lot more forward flex, new boots by comparison felt like pushing into a brick wall.


So  I spent a bit of time in my local Snowdome (not a lot of mountains around me) playing around with shims, foam, heel lifts and clipping variations doing a bit of diy boot fitting.....yes I know.


Between two visits I took a bit of material off the cuff bottom edges to get a more progressive flex, which seemed to improve things but the basic issue didn't go away.


The eureka moment was this weekend when I tried packing under the heel binding. At 6mm things clicked and I was back to my old self.


My question is what to do now?

6mm seems like a hell of a lot to jack up the binding and if I just shim up the biding what happens if I try to use another pair of skis.

Is there a bigger issue here I should be trying to do something about rather than just curing a symptom?



Any advice appreciated



post #2 of 8

Jacking the boot up at the heel tilted it forward effectively increasing the forward lean----it is easy to increase the forward by adding a spoiler between the top back of the shell and liner.  This changes the tibia angle of your lower leg moving your center of balance forward over the boot sole.


When you hit the correct spot you know it as you mentioned in your post----evidently you have slimmer calves and the 

Tecnica's are too upright for you leg circumference.  Most all boots have become more upright recently---works for some folks.


You need to get your new boots to have the same amount of forward lean as you old ones, by adding the correct thickness of spoiler you can accomplish this.  So once you have determined the amount of change you need, look for a spoiler, if you can't find one that is precisely the right thickness, you can add layers of duck tape to the spoiler to get to the right number.


Place a carpenters square upright behind the heel of your old boot and measure to the back of you liner at the top of the back of the shell, then measure the same thing on your new boots---do a little math and there you go---you have found out how much to add.


Good luck



post #3 of 8

Mike has given you the answer you need, it is all about stance and balance, subtle adjustments are going to make a massive difference to how the whole thing performs, do bear in mind that if you are on different skis the bindings may have differing delta angles so the problem MAY return to some extent but if the spoiler you use is tapered and velcro attached you should be able to move it to increase or decrease the lean angle of the boot to suit whatever ski you are on

post #4 of 8

It sounds to me as if your new boot is more upright than the old.  A more upright boot will always feel stiffer if everything else is the same.


I doubt there is a 6mm decrease in differential between toe and heel height and the Cochise is not a particularly stiff boot.  Can you find ways to play with forward lean angle.



post #5 of 8
Thread Starter 

Thanks for the feedback.


No square to hand so butted the boots back against a convenient piece of furniture.


The difference between old and new boots comes out at 9mm.

Interestingly, putting 6mm under the heel of the new boot reduces the difference to 2mm but I noticed there was already a spoiler velcro'd  to the back of the liner adding a few millimeters so we are probably within a millimeter when that's taken into account.


I had tried putting foam pieces between the back of the liner and shell on a previous test but with hindsight the foam was probably not thick enough and too soft to be effective.


Any ideas about what to make a new spoiler out of? I'll need to buy/scrounge something.


The spoiler that came with boots is quite short, if I'm making my own is it better to make it longer, how far down into the shell should it go (suitably tapered as mentioned)?




Seeing some light at the end of the tunnel at last.





post #6 of 8
I had suggested using Duck tape--- it turns out that 5 pieces of tape layered up is 1mm thick. We recommend that you make up several 1mm thick pieces 2X3 inches and carry them out on the hill with you skiing, stuck to the out side of the boot cuff, ready to be added to the spoiler as needed, till you feel centered up. This way you have a degree of adjustability ready to go, while you skiing and you have the ability experiment. Stick the layers to the inside, top of the shell, by opening the top 2 buckles and power strap and pulling the shell back from the liner(whilst kneeling and out of your skis). Beleave me, this works and a couple mm's can make a world of difference.

post #7 of 8

Rich, where are you based?, i am going to guess UK as you mentioned snowdome!  if so i am sure we can sort you out a spoiler that will work, just get ijn touch if you need something


post #8 of 8
Thread Starter 

Feel another trip to fridge coming on.


The duck tape trick sounds like a good option, will give it a try.



Originally Posted by CEM View Post

Rich, where are you based?, i am going to guess UK as you mentioned snowdome!  if so i am sure we can sort you out a spoiler that will work, just get ijn touch if you need something


Hi Colin, I've had  a few trips to Bicester over the years, if I struggle with a more permanent solution will no doubt be knocking on your door again




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