Renoun Endurance 104 (2016-2017)
127-104-127mm r=22m 184cm 
“Smoothly disappears underfoot."
"Deceptively unassuming, high-quality ride with a huge terrain and snow surface range.”
“The faster you go, the smoother they get.”

Renoun Endurance 104
Manufacturer Info:
Cyrus Schenck
Renoun Skis
266 Main St., Burlington, Vermont, United States
(802) 778-9163
info@renoun.com 
http://renoun.com/
https://www.instagram.com/renounskis
https://www.facebook.com/RenounSkis/
https://twitter.com/renounskis
Suggested Retail Price (MSRP):
$1195 usd (2017)  - Unusual Two Year Warranty – 100 Day Satisfaction Policy
Usage Class:
All Mountain 100+mm 
Rating (with comments):
(1="get me off these things"->10="I have to own a pair")
8+ for packed powder groomers...all speeds
10 for mixed conditions
9 for powder conditions for its 104mm waist
Manufacturer's Description:
“A wider version of the Endurance 98.
The 104 is a supercharged evolution of our best-selling ski. Smooth and  powerful, light and nimble, the 104 comes to life when you turn up the  heat.
With our patented technology inside, RENOUN has won top awards for  performance. Responding to subtle changes in surfaces, the HDT™ works  deep in the core to keep vibration to a minimum and your stoke at a  maximum.
Enjoy more float on the deep days, save your energy, and stay out  longer. The elliptical sidecut tightens as you carve deeper. You’ll make  effortless tracks and unforgettable days on the trail.
For all-mountain capability, the ENDURANCE 104 delivers. ”
- Website September 2017
Summary:
The Endurance 104, like most of the other skis in Renoun lineup,  produces  a very smooth, nearly silky feel under its entire length as  you cruise  at speed, or pound-out some short, choppier turns with  enthusiasm.  The 104 has a very wide performance envelope, and supports a  variety of skiing styles ranging from  casual all-terrain cruising, to   “let the patrolers try to catch me”  behaviors..   The Endurance 104  impresses you after a couple runs since it  disappears under you and you  forget about it, focusing instead on where  you want to go and what  line you want to take and what kind of turns you  want to execute. You  forget theyre on  your feet...simply doing pretty much anything you want  them to  do...without any glitches, hiccups, protest or failures.    Some might find the Endurance 104 to feel a little boring at first until  they realize how fast they can ski it and how well it handles nearly  anything you throw at it.  That's the deceptive part. Once you think  about it, you realize..."wow". We found the 104s became one of the  "go-to" skis to be stuffed into the car any time the snowfall was over 4  inches the night before, or if snow conditions were changeable or iffy.  That should tell you something about the ski's personality and  usability.
As we said about the other models from Renoun, we  can’t think of  anyone who wouldn’t like the Endurance 104, other than a heavyweight,  hard-charger looking for a stout, highly damp, high-speed freight train  with some substantial mass to it.  Having said that, the 104 will  surprise the higher-speed crowd since it has an uncanny way of becoming  smoother the faster you ski it.  You think a relatively soft, 104mm  waisted ski will turn into a flappy, unstable noodle at higher speeds,  but surprise, surprise, the Renoun Endurance 104 gets more settled and  less nervous the faster it flexes and vibrates across surfaces, and  that's pretty cool.
The 104s are infused with the HDT  non-Newtonian polymer material in the  core (8 inserts of HDT in this model), carbon fiber and triaxial  fiberglass layers and actually gives the impression the ski is quieter  and  more composed as you go faster and the frequency of actions upon  the ski  by the terrain and the pilot’s input increase and become more  intense.   This is a big deal, and one of the holy grails of the ski  industry for  many years.  Plenty of dampening mechanisms, materials and  marketing  voodoo hype have come and gone over decades of ski designs,  all trying  to improve quiet behavior when conditions get unsettled, but   unfortunately, most have been discontinued because they really didn’t   work or made the skis feel heavy and unresponsive.  Renoun’s technology   of materials and construction have made a significant, and important   change to ski behavior. For real.
The Endurance 104 is a super-composed, smooth and quiet   all-mountain  ski with a bias toward softer snow. The Renoun Endurance skis are   priced at the higher-end of the spectrum at $1,195 for several reasons.   First is the unique, patent-pending material and construction recipe   exclusive to Renoun that won the World’s ISPO Gold Award for technical   innovation.  Second is the rather unusual and confidence-inspiring 2   year warranty against defects.  Cyrus stands behind the premium product   with a premium warranty. Third is the 100-day satisfaction guarantee.    Try them for 100 days, return them for a full refund if you don’t love   them.  That’s a premium offer...essentially a risk-free purchase direct   from the builder.  Nice work Cyrus.  Definitely see what all the buzz  is about  and demo the Renouns if you can.  You might like what you  feel.
Technical Ski Data:
Maple wood core
HDT Non-Newtonian Polymer inserts (8) in the core
UHMW Sidewalls
Carbon fiber and Triaxial fiberglass

Image from Renoun Website
Bindings,  Boots, Wax & Tune Used:
Tyrolia PowerRail PRD12 Demo Bindings
Salomon S-Max 120 boots.
Green Ice waxes, cold and warm


Pre-Skiing Impression:
Good fit and finish, business-like subdued graphics, but not   inspirational or overly impressive. Damp, rounded hand flex, “medium”   flex with slightly softer tips and tails and a medium midsection.    Slight tip rocker, but not prounounced.
Test Conditions:
Eastern corduroy, man-made dry packed surfaces,  knee-deep dry eastern  powder, spring corn and refrozen man-made hardpack boilerplate. Some  twigs, weeds and tree-filled terrain.
Hardpack and Boilerplate:
The Renoun Endurance 104 has pretty decent, almost impressive grip on  the hardest Eastern boilerplate, but does not lead the class in icy  terrain security due to its relatively compliant torsional rigidity  which lends friendliness to its handling, but yields some grip on really  hard surfaces.  We improved the grip by tuning it to 0.75 degree base  and 2 degree side bevels without sacrificing easy turnability.
Vibration control is superb, and if you induce chatter on boilerplate   with a defective turn initiation and finish technique, you can cancel   it quickly with a stance correction without feeling the ski get   out-of-sorts under you.  Control and comfort is the key trait of the  Endurance 104, and it’s probably one of the best skis to use all-day  from  freshies in the morning to cut-up junk mid-day.  The level of  effort to get  the 104 to perform is impressively minimal and  deceptive.  It requires  little input from the pilot and never generates  any surprises, always  delivering an impressive quality of ride and  satisfaction.  It’s the  kind of ski you forget is under you after a  couple runs, and we found  you can ski more runs with fewer breaks, and  that says something right  there about the kind of ski this is....just  like we found with Renoun's other models.
Mixed Conditions:
Renoun’s Endurance 104 should be one of the all-mountain reference  standards for ease-of-use and stability over a wide  variety of surface  conditions in the 100mm+ category.  The impressive packed-powder carving   behavior expands into impressive surfing or carving behavior when the   snow conditions get variable and the terrain gets rougher.  The 104  feels more nimble than its waist might lead you to  believe, and it’s as  happy on-edge under pressure as it is running flat  through fresh snow,  cut-up crud, junky snow, skied-out packed surfaces  or Spring  condtions.  Cutting across chop and ragged-out surfaces is a nearly  effortless, almost peaceful experience. The Endurance 104 works great  for  people who ski bell-to-bell through hell or high water and want   something with a softer-snow bias rather than a purely directional or  frontside-only ski.  This could be an ideal Western daily driver or an  Eastern storm ski for a huge population of people. It may also be a  favorite among patrollers who spend all day on snow in good  and lousy  weather.
Bumps:
The Endurance 104s go through bumps smoothly and predictably, and a feel  a bit more nimble than you expect a 104mm waisted ski to be.  They  prefer softer, snow-filled bumps to head-banger hardpack bumps, but  never really complain or rough-up the skier.  They can be slightly balky  at slow speeds and in tighter bump fields since they they don't have a  strong tip or tail rocker profile and a relatively longish effective  edge, but you can turn up the speed through the undulating terrain a bit  higher than many other skis this size and still have a quiet,  civilized, well-mannered ride without feeling like your driving a truck  too fast down a dirt road.  Control is the word that comes to mind with  the 104s in bumpy terrain.  If you're looking for an explosive,  high-octane feel in the bumps, the Renoun Endurance 104 is not your  ski.  If you want to cruise through bumpy terrain with a smooth, easily  controlled and deliberate tool, the 104s work well.
 Powder:
Our powder experience with the Renound Endurance 104s as limited to knee-deep eastern dry snow and damper, heavier shin-deep snow in Vermont, both open-terrain and Eastern woodsy conditions. The 104s are "only" 104mm underfoot, so they don't really qualify as a pure-powder ski, but more of an all-mountain 100+mm ski.  That being said, they are pretty much effortless in powder, with a definite bias toward directional behavior more than pure smeary handling since they are cambered and are designed with a moderate tip and tail rocker..  The somewhat soft flex makes surfing to the planing speed quick and easy, and they stay where you put them until you want a directional or depth change.  Riding the 104s in powder is pretty darn easy and they disappear underfoot so you can concentrate on picking lines instead of handling the skis and getting them to do what you want.  The 22mm sidecut design makes them pretty versatile, so we could ramble through the Eastern trees quick and easy, yet let them run in open terrain pretty well...always with a smooth ride and lots of control.  It takes a bit more effort to throw them sideways in the tight terrain since they are not uber-surfy and have a cambered midbody, but they can change direction on a dime with a quick foot stomp to avoid a stump or rock when moving through the trees.  For a 104mm-waisted ski, they are super freindly in powder and would be fun for everything but the most epic dumpings when a fatter, more specialized powder tool would be ideal.
Turn Initiation Transition & Finish:
The Endurance 104s can initiate turns with minimal effort, simply  rolling the ski over a bit and applying pressure will engage the  forebody and it will bring itself into mid-turn with a nice, progressive  feed without any abrupt pull or washout along the way.  It likes to  have the pressure maintained consistently since it doesn't "auto-pilot"  itself into an arc like some carving skis when they engage. You can  abort the turn by simply rolling the ski a degree or two towards  flat-running and it will settle into a new trajectory quietly.  The ski  likes having max pressure applied at mid-point along the turn to get a  full-length engagement, then you can choose to pressure the forebody,  midbody or tail to finish your arc.  The 104s seem happy finishing the  turn with a variety of pressure stances, and that's pretty handy when  the terrain gets variable.  The Renoun 104s don't really eject you into  the next turn like some rowdier skis, but you get a deliberate,  well-applied acceleration along the tails with a reliable, controlled  woosh rather than a "throw you in the back seat if your not careful"  energy.  The smooth feel can lead to some deceptively increasing speeds  with a few turn sequences, so people looking for a ski to kick them in  the pants might feel the ski is unexciting until they realize how fast  they are going and how quiet it feels. 
Analogies: ("This ski is like...")
Silky smooth Audi A8 with fresh tires, quiet, comfortable, powerful and   so easy to drive all day at high levels of performance you don’t  realize  it’s time to go home. (just like we said with other Renoun ski reviews...we need more variety in our comments, but it's how the ski feels...)
Vermont Beverage Most Like This Ski:
Hired Hand Nitro Espresso Milk Stout. Smooth, smooth smooth and friendly  with a rock-solid impression and a delicious aftertaste.
http://www.hiredhandbrewing.com/hired-hand-beers/
Things We Would Change About This Ski:
 
Nothing, other than maybe a Titanal metal “pro” version for hotrods who  want a more substantial, stiffer flex and more dampening power.
Short Answer When Someone Asks "What Do You Think About This Ski?":
Superbly smooth all-mountain ski with a soft snow bias with a very wide  performance  envelope for skiers of all types.  Everyone who tries it  seems to say  the same thing….”Wow...super quiet and impressive...”  Significantly  important ski from Renoun.  Other ski companies should  watch their  backs.
Advice To People Considering This Ski:
Get yourself to a demo day and see if the smooth personality suits your   style.  These are a “sleeper” type of ski that doesn’t impress you   immediately until you realize you’ve been skiing it all day at   increasingly sporty levels.
Who and What Are These Good For?
All-mountain skiers who get every fresh dumping first thing in the morning, but want to keep a ski through the cut-up late morning surfaces and the progressively ragged snow into the afternoon with one ski.  Corn harvesting enthusiasts will love this ski in the Spring.   Rope-duckers, Patrollers,  100-days+ skiers and other people who want  one ski to run all day  without burning themselves out  will love this ski.
Pics:

 

 

  

Tail rocker
 

Tip rocker
 




Tip profile

Tip construction closeup


Tail profile

Camber profile