Marin Pine Mountain 2: Steel 27.5+ Hardtail – First Look Review [VIDEO]

Marin celebrates its 30 year anniversary with a new bike that harkens back to the classic, well-liked model it shares its name with, the Pine Mountain. In the video below, we take a look at the 2016 Marin Pine Mountain 2. The Pine Mountain 2 has upgraded build specs and frame construction (compared to the Pine Mounatin 1) that we took a close look at. Not only did we discuss those build specs and frame construction choices made by Marin, but also the possible applications for this 27.5 plus hardtail trail bike.

When looking at the Marin Pine Mountain 2, there were many things I immediately liked and/or was intrigued with.

The first was the frame construction. Columbus CrMo steel catches my attention right away. I have been a huge fan of steel hardtails ever since my first singlespeed 29er. The modern steel frames can be drawn, butted, and formed very precisely yielding a frame that has ride quality and rigidity in just the right places for a great balance of efficiency and comfort. This frame is unique in that it has really cool, high quality, yet understated graphics and design elements. The 30th anniversary emblem on the seat tube looks phenomenal. The raw, clear-coated frame with brazing showing through makes this frame look completely custom and has an industrial feel. As I looked at the brazing, I noticed this steel frame has cable routing through the frame. For a steel frame this is almost unheard of. Mad props to Marin for including this. It isn’t entirely necessary, but isappreciated as it makes this bike look clean, high quality, and if you didn’t know better, a one-off piece that was custom ordered.

Secondly, was the plus sized wheels and tires. While WTB Trailblazers are on the narrow end of the plus bike tread options, they roll quick and add volume that is noticeable. The WTB Scraper rims, with their 45mm inner width, allow a wide profile and will be a good foundation for any other tires you may decide to use in the future.

Thirdly, the rack and fender mounts on the frame are definitely a rarity on a trail bike like this. In my opinion, its better to have them and not need them, should you only use this bike in drier conditions for a general trail bike instead of loading it up or outfitting it with fenders. Like the adage goes, “Its better to have them and not need them, then not have them and wish you had them.” I imagine other frames like this, capable of general trail riding with higher volume tires and a little more comfortable geometry, will start incorporating features that cater to bikepacking, longer rides, and carrying more gear as overnight trips by bike continue to grow in popularity.

Fourth, I noticed the HUGE amount of clearance on the Fox Float 34 fork. This thing could probably come close to clearing an actual fat bike tire. It appears that tires close to 4 inches wide may fit. 29 plus tires should fit no problem, so I imagine just about any 27.5 plus tire could fit up there. That is a great plus. Pun intended.

Fifth, the dropper post. This was very intriguing. While I have yet to use a dropper post on a bikepacking trip, I have used them on trail rides and they are undoubtedly a huge benefit. This is the first time I can recall seeing a bike come factory spec’d with both a dropper post and rack mounts on the frame.  I quickly wondered why. Why haven’t I seen this combination before and why did Marin include both. Both of my two hypotheses hinged on the assumption that because Marin wanted to make this a trail bike (Marin calls it “Trail+”), they included a dropper post. That seems reasonable. My first hypothesis is that in order to utilize a dropper post while bikepacking, the larger seat bags that are so common and often necessary for carrying sleeping bags, tents, clothing, or other bulky items would not be possible. Since the large seat bag wouldn’t be used when using the dropper, rack mounts would provide the opportunity to carry that necessary volume on a rear rack. The second hypothesis is that Marin figured most of the time, trail riders would prefer to have a dropper post, so they included it in the build, but they knew that the plus-size platform, with the trail geometry and steel frame would attract many riders would see this bike as one that can fulfill two roles: trail riding and bikepacking/all terrain touring. If riders plan to trail ride most days, but occasionally use it for an overnight bike trip, it would be easy to either swap out the seat post and use a large seat bag, or mount a rack and bags to carry their gear. I think its a good call and may be ahead of its time in a trend that may start in the future as we see more riders using their bikes to explore and spend nights in the backcountry.

Build Specs as listed on

  • Frame: Columbus Thron Butted and Formed CrMo, 27.5+ Wheels, Boost 148x12mm Naild Locking Thru-Axle Dropouts
  • Weight: 29.01 lb/13.16 kg (published bike weight is based on a size Medium frame)
  • Front Fork: Fox Float 34 27.5+, 3 Position Lever, 110x15mm Thru-Axle
  • Crankset: Shimano Deore XT Hollowtech II, 32T
  • Derailleur Rear: Shimano Deore XT Shadow Plus
  • Shift Lever: Shimano Deore XT 1×11-Speed
  • Derailleur Front: Cassette: Shimano Deore XT 11-Speed, 11-42T
  • Bottom Bracket: Shimano Hollowtech II
  • Chain: KMC X11L
  • Hub Rear: Formula, 148x12mm, Alloy Axle, Quad Cartridge Sealed Bearing, Centerlock Disc, 32H
  • Hub Front: Formula, 110x15mm, Sealed Cartridge Bearing, Centerlock Disc 28H
  • Rim: WTB Scraper, 45mm Inner, Tubeless Ready Spokes
  • Nipples: 14g Black Stainless Steel
  • Tires: WTB Trail Blazer, 27.5×2.8
  • Brakes Front: Shimano SLX Hydraulic Disc, 180mm Rotor
  • Brakes Rear: Shimano SLX Hydraulic Disc, 160mm Rotor
  • Brake Levers: Shimano SLX Hydraulic Cockpit
  • Handlebar: Marin Flat Top Riser Grips: Marin Locking
  • Stem: Marin 3D Forged Alloy
  • Headset: FSA Orbit, Sealed Cartridge Bearing, 1 1/8
  • Seatpost: KS LEV Integra, 30.9mm
  • Saddle: WTB SLC XC



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  • jameseo Posted January 30, 2016 10:04 pm

    You think there’s enough clearance back there for standard 3.0 tires?

    • RideAlongside Posted January 30, 2016 10:16 pm

      I think so. I don’t think they would be calling it 27.5+ if I could only fit the trailblazers. I will look to see if we got some shots of the rear triangle tire clearance for you. Thanks for your comment James!

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  • Dave Posted February 8, 2016 4:27 pm

    Just curious, what was the height and inseam of the owner in the video? I’m a small build (5’7″ 30.5″ inseam) and wondering if I should go with a small or medium in this bike. I’m leaning toward the med, but just wanting some more feedback about it. Thanks for the write up! Super detailed, thanks again!

    • Nick Janssen Posted February 9, 2016 10:04 am

      On size of the bike with the agressive trail geometery I focus more on effective top tube geometery and reach as that is much less adjustable then saddle height.

      For me I am 5’6″ (30″ inseam)  but have a short torso.  On some bikes I fit on a medium but for this bike the small was the better cockpit fit.   I would measure your current cockpit dimesions and focus on reach and effective top tube dimensions.  

      • Dave Posted February 9, 2016 3:18 pm

        Thanks for the reply! I’m currently on a small karate monkey which has a little bit longer ett (575.6mm) plus a thomson setback (16mm) and a selle anatomica saddle, set a little past the halfway point. A 90mm stem and jones loop bars which brings me a little more upright, and I would probably add to this bike anyway. I have always leaned toward a shorter ett than longer, but with the current trend of longer tt and shorter stems, I feel like a med would be more stable for me. My local trails are pretty steep both ways, I feel like the longer tt might help with stability. Thanks for the feedback! It’s helped me put a few more things in the consideration bag. Thanks again.

        • Nick Janssen Posted February 9, 2016 3:22 pm

          Glad we could help!

  • Sasha Drzak Posted February 14, 2016 4:01 am

    This bike is so sick!
    Will these be limited to US only I wonder?
    I’m an ex-pat living in the Czech, where XC 29ers and spandex reign supreme. Steel is not so real over here unfortunately either. What the Cesky’s don’t realize is that a steel plus bike would absolutely crush it year-round here! Maybe a revolution is in order?
    Cheers lads

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