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K2 Pinnacle 88 TI Review

The K2 Pinnacle 88 TI is on the narrower end of our all mountain category, but still delivers in soft snow
K2 Pinnacle 88 TI
Credit: Jenna Ammerman
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Price:  $600 List
Pros:  Fast, consistent, surprising amount of float
Cons:  Unforgiving
Manufacturer:   K2
By Andrew Pierce ⋅ Review Editor  ⋅  Nov 7, 2019
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  • Stability at Speed - 20% 9.0
  • Carving - 20% 9.0
  • Crud - 20% 7.0
  • Powder - 20% 7.0
  • Playfulness - 15% 5.0
  • Bumps - 5% 7.0

Our Verdict

K2 discontinued the Pinnacle 88 TI in 2019.

The K2 Pinnacle 88 TI is a ripping groomer ski that scored surprisingly well in most of our testing categories. Initially, we categorized the Pinnacle 88 TI as more of an East Coast ski, but our West Coast testers soon fell in love. This ski delivers a surprising amount of float for relatively narrow ski, 88mm underfoot, but it really shines on the hardpack and in variable conditions. If most of your resort adventures are centered around groomer skiing, the Pinnacle will not disappoint. It has a generous amount of tip rocker combined with camber underfoot, which K2 calls their all terrain rocker profile. With lots of metal (TI = titanal + fiberglass) and a short turn radius, this is an incredibly fun carving ski. But even though it shines brightest on-piste, it can handle the whole mountain efficiently.

Our Analysis and Test Results

We tested the Pinnacle 88 TI in a 184cm length, and it skied pretty true to size. It has some capabilities that were made evident through our testing process that we certainly did not expect, and that is precisely why we put all of these skis through such a rigorous testing process.

Performance Comparison

K2 Pinnacle 88 TI all mountain skis - fast and consistent with tons of pop, the pinnacle 88 ti is a dream...
Fast and consistent with tons of pop, the Pinnacle 88 TI is a dream when laying the skis over on edge. Our tester is loving them in this photo.
Credit: Scott Rokis

Stability at Speed

K2 built the Pinnacle 88 TI with speed in mind. These skis sport a metal laminate with alternating layers of titanal and fiberglass, which creates an incredibly damp and smooth ride even when cruising at Mach 5. Expert skiers will feel comfortable pushing themselves to their speed limits on this ski, and the consistency and dampness rival its top competitors.

Although it is similar in size and sidecut to the some of the skinnier skis in our testing line up, the Pinnacle 88 TI has a shorter effective edge due to its pronounced tip rocker. Because of this, if you like to go fast, think about sizing up a bit to get a longer Pinnacle.

K2 Pinnacle 88 TI all mountain skis - despite being a long ski, the pinnacle 88 ti has aggressive sidecut...
Despite being a long ski, the Pinnacle 88 TI has aggressive sidecut that helps the skis make short turns super fun. Easy turn initiation and release are also crucial aspects to this ski's performance.
Credit: Scott Rokis


Carving is another category where the Pinnacle 88 TI absolutely crushed. K2 has made it incredibly easy to initiate turns on this ski by adding partially capped sidewalls and creating an enjoyable turn shape with a generous sidecut. Like the other narrow planks we tested, this ski shines brightest when making quick and short turns but also easily adapts to railing GS-style turns on open groomers.

The tapered tip and tail also make it easy to release one turn and quickly pop into the next. In short, this ski is an absolute blast on all groomers. Steep, flat, wide-open, closed-in, soft, icy — you name the groomer, and the Pinnacle 88 ti will slay it.

K2 Pinnacle 88 TI all mountain skis - the pinnacle 88 ti eating up all the terrain kirkwood has to offer...
The Pinnacle 88 TI eating up all the terrain Kirkwood has to offer. This is a surprisingly good all mountain ski, no matter what coast you recreate on.
Credit: Scott Rokis


Although the Pinnacle 88 TI has a sheet of titanal in it, it is not the crud-busting machine we expected. While the ski did feel fairly damp in most conditions, the aggressive tip rocker led to some tip flap, which is a similar problem we experienced in skis with similar profiles.

Also, despite the tapered tip shape, the ski deflected in refrozen conditions. All that said, the Pinnacle 88 TI scored fairly well in this category due to the burly nature of the ski. As mentioned above, the ski is quite damp, due to its layered core construction, and handled most of the worst conditions well — it just isn't in the same realm as our top performers.

K2 Pinnacle 88 TI all mountain skis - the pinnacle 88 ti is not known for its powder performance, but it...
The Pinnacle 88 TI is not known for its powder performance, but it surprised all of our testers with its float. The large tip and rocker in the front help it plane well, as seen in this photo of one of our testers after a storm.
Credit: Scott Rokis


The OutdoorGearLab team did not pick the Pinnacle 88 TI because we envisioned being a dreamy pow ski. Once our testers got to ride them in some surprise Tahoe storms, that preconception quickly changed. This ski handled most powder days better than expected.

Our testers attribute this ski's unexpected powder ability to the early rise combined with the wide tapered tip. This allowed the ski to plane on top of the fresh similarly to much wider skis. It did not score as well overall due to the lack of width underfoot. While the 88mm underfoot never really bogged our testers down in less than one foot of powder, when two feet of fresh rolls in, you'll want to reach for a fatter ski.

K2 Pinnacle 88 TI all mountain skis - taking to the skies on the pinnacle 88 ti. make sure you have a soft...
Taking to the skies on the Pinnacle 88 TI. Make sure you have a soft landing below and stay balanced because this ski can be unforgiving on the landing.
Credit: Scott Rokis


This ski is not exceptionally playful. The same attributes that make the Pinnacle 88 TI a hard-charging groomer ripper (plenty of metal, generally stiff flex, etc.) detract from it being super fun when bouncing around between features.

K2 Pinnacle 88 TI all mountain skis - getting shifty on the pinnacle 88 ti. the soft landing below was key...
Getting shifty on the Pinnacle 88 TI. The soft landing below was key in deciding to air it out with this stiff ski under our feet.
Credit: Scott Rokis

Low swing weight and a poppy wood core are some features that allowed our testers to have plenty of fun on these skis. Jump landings tended to be unforgiving. The Pinnacles didn't feel deal, but it is hard to for ski manufacturers to find the balance between hard-charging and playful.

K2 Pinnacle 88 TI all mountain skis - our other competition bump skier turned ski-tester seen here on the...
Our other competition bump skier turned ski-tester seen here on the Pinnacle 88 TI. Just for you, we took all of our skis, including the Pinnacle 88 TI, down all types of moguled terrain.
Credit: Scott Rokis


As stated above, we tested this ski in a 184cm length, and it was not the ideal length for most of our testers to mash bumps. But one of our lead testers was a competition mogul skier early in his career, and he fell in love with the Pinnacle 88 TI.

While most of our testers found this ski to be a bit unwieldy in huge man-eating bumps, they did agree that the ski-to-snow contact point is close to the middle of the ski, which helps when trying to quickly navigate troughs between bumps. The lightweight design also helped in moguled terrain.

K2 Pinnacle 88 TI all mountain skis - here, the pinnacle 88 ti's wide tips can be seen rising above the...
Here, the Pinnacle 88 TI's wide tips can be seen rising above the crud. This is not the best ski in bad snow, but it handled most conditions with grace.
Credit: Scott Rokis


The Pinnacle 88 TI is a great value. It retails for what we consider a fair price for a good all-mountain ski that is manufactured by a company known for its durability and overall high-quality products.

K2 Pinnacle 88 TI all mountain skis - grabbing some style-y air on the pinnacle 88 ti. it is not the most...
Grabbing some style-y air on the Pinnacle 88 TI. It is not the most playful ski we tested, but we continuously took to the skies with them.
Credit: Scott Rokis


The Pinnacle 88 TI may be an average ski in our reviews, but that doesn't mean it isn't the right all-mountain ski for you. All of the skis in our men's all-mountain category are high-quality, and the Pinnacle 88 TI is no exception. If you like to ski fast, love groomers, and are a little shell-shocked by the $1,200 price tag on some of the skis produced today, look no further than the Pinnacle 88 TI. It may even surprise you in conditions when you least expecting it.

Andrew Pierce
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