Costco Northrock XC27 Mountain Bike


Costco sells this Northrock XC27 Mountain Bike for $349.99. Scroll down for photos. I’ve been closely monitoring the Costco outdoor items & this product JUST hit the shelves. I’m starting to look at bikes because my kid is 2.5 years old & he’ll be ready to get off of his strider bike soon. I’m going to want something to ride around the block with him & I’m not looking for a bike that costs thousands of dollars. I also don’t want a bike that is the bottom of the barrel. I think this bike will fit the bill perfectly. It’s $349 & it’s made by Northrock & comes with name brand Shimano shifters. It’s probably the best bang for your buck in this price range. My choice is between this or the Costco Infinity Boss Three Hybrid Bike that people loved. Here are a few more details about this Northrock XC27 Mountain Bike……..

  • Northrock XC27 Mountain Bike
  • All Aluminum Frame
  • Shimano Altus 21 Speed
  • Maxxis Ikon Tires
  • Shimano EF-500 Shifters
  • Tektro Mechanical Brakes
  • 95% Assembled. Tools Included

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Northrock XC27 Mountain Bike Costco


So there are not a whole lot of reviews to be found online. The few I could find, were on Amazon. Click here to read them. At the time of this post there were only 4 reviews & all 4 people gave it a 5 star rating! So that is good news. The nice thing about this, like any other product, is if you don’t like it you can always return it. I also checked out the Northrock website & they don’t sell the XC27, they sell the XC29. I am going to assume there are slight differences, because Costco usually does that with items. They will tweak a few features to get the price down. It’s probably VERY similar to the XC29 though. If you can’t find this at Costco or want to compare some HIGHLY RATED mountain bikes, make sure to check these out………

Price: $349.99, Item Number: 1275785

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38 thoughts on “Costco Northrock XC27 Mountain Bike

  1. Someone asked about raising the handlebars on the Northrock xc27. Ours that we just purchased at Costco has a tag on them that says handlebars cannot be raised or lowered.

  2. Can the seat be changed out on the Northrock xc27? Just bought 2 at our local Phoenix store this past weekend, but the seat is extremely uncomfortable! would like to change out to a bigger padded seat.

    1. I’m sure you can. Take a look underneath to see how it is connected to the frame. You’re probably going to need a screwdriver or a set of allen wrenches, but it should be fairly straightforward. There are plenty of YouTube videos on how to change the seat if you do a quick google search. Hope that helps

  3. Do they sell a men’s and women’s version of this bike? My husband picked one up but it would be too big for me. I’m wondering if I should check a different store if they do sell a women’s version.

    1. I’ve only ever seen this version of the bike. I know the “Costco Infinity Boss Three Hybrid Bike” comes in a women’s version. I recently saw that on the display, but I’ve never seen this bike in a “women’s” version. I’ll keep my eye out for one, but I don’t think they make them. If you do find one, please let me know

  4. I just bought the Northrock XC27 from a Costco in the Portland, OR area, yesterday. Good to see these comments on the bike before I start assembling it in a few days.

    1. Glad you were able to find one Alex! I haven’t seen them in my local stores for a while now. Let me know how you end up liking it.

  5. There’s a different color showing up in warehouses with a different product number. Have your warehouse look up item number 1466692.

      1. Thanks Ricky! Glad you were able to get your hands on one. Please come back & let us know how you like it

    1. I’ll have to check that out. This is the only color I have seen in person. Which other colors did they have?

  6. They are out of stock in Colorado, anyone knows when the next shipping would be? I regret not buying it when I saw it a couple of weeks back.

    1. I didn’t see them at my Costco either. They had the Infinity Boss Three Hybrid bike in stock but no the Northrock. Hopefully they will get another shipment in soon. I’ll keep this post updated if I do see them & please do the same

  7. I recently purchased a Boss Three Hybrid Bike for myself, and the female version for my wife. Very nice bikes for the money. Assembled both both. Wife’s worked great. However, neither of my tires would hold air, with immediate deflating (not a valve seem issue) – apparently due to faulty assembly with punctures to inner tubes. Big disappointment. Returned mine to Costco, but no replacement was available (they sell out quickly) – and next shipment not due in until after mid-July. Fortunately they were then selling the Northrock XC27 mountain bike, which I purchased instead of waiting for the Boss Three. The XC27’s front suspension may be easier on my bad lower back. Just hoping the threadless handlebar stem can be sufficiently adjusted upward by a bike specialist to allow me to street-ride and path-ride in a more upright position, as mountain-biking is not in the cards for me. Does anyone have any experience (or knowledge) on how high the threadless handlebar stem can be raised? Thanks!

    1. Glad you were able to score these bikes. I saw your other post about the Hybrid Boss Three bike. As far as the Northrock XC27,you should be able to adjust the handlebars by loosening the threaded stem. Almost all bikes allow you to do that. I would be shocked if this bike didn’t have that feature. As I mentioned in my other post, my kid isn’t quite ready for a bike, but I may be kicking myself for not getting this one when he is ready (probably later this year). Anyways, let me know if you end up getting the handlebars adjusted & how the bike rides. Hopefully it’s easy on your back! Thanks for stopping by

    1. The price on their website includes shipping and handling, thus the higher price. Note, it is not “free shipping” with a hidden higher price, thus you cannot try to price match from their brick and mortar.

    2. You will have a tough time price matching because they include shipping & handling in the cost of almost ALL their online products. I’ve tried something like this before & failed. I was told it was a separate division of Costco & that Costco.com & your local Costco store are not exactly the same. This was years ago though. t-bone is right if you keep reading

  8. I’ve owned a Northrock XC 27 for about three years now with about 500 miles on it. I’d rate this an excellent bike for the money. Forward shocks are good, not too soft and I’m enjoying the disc brakes over my previous rim brakes. I’ve done up to 28 miles at a clip on the Northrock, frame paint job holding up nicely even with stacking on a bike rack for trips. Very happy with the purchase but have found stocking of this item at Costco very sporadic! I’d like to buy another for a family member but it is never in stock. As you said you can always return if not satisfied which is what prompted my purchase over the GT Aggressor which I was also mulling at the time.

    1. Thanks for the detailed review Paul! Did you get your original bike at Costco? You are right about the stocking. It tends to be seasonal & when I did see them, they were gone the next week. That was almost all the different brands of Costco bikes. I’m glad you got your hands on one and are enjoying it. Thanks for stopping by

  9. I am dealing with a manufacturers defect. I absolutely hate the bike. My back wheel just fell off without warning

    1. Oh no! That’s terrible. Did the manufacturer get back to you about that? Did you return it to Costco? I’m going to assume you didn’t seriously injure yourself since you left a comment, but I hope you’re OK. Sorry you had a bad experience with the bike & thanks for letting us know

    2. Its a quick release wheel. You have to fold it to the closed position. Maybe having this convenience feature was too much of a burden for the uninitiated who doesn’t know the difference between a bbq and wheel skewer.

      1. Thanks for the tip t-bone. This may be a lot of people’s starter bikes, so there’s a lot of things that may seem obvious to some & not others. Thanks for stopping by

    1. I saw this in the Bay Area, CA. I saw it at 2 of my Costco’s. I wanted to give it a test ride around the store, but that may have got me some funny looks =)

      1. Do not buy this bike there have been reports of the back tire which comes pre-assembled falling off while people ride it.

        1. Thanks Jessie. I’m going to have to add that into the post because you’re the second person that has mentioned the back wheel falling off. Seems like such a HUGE defect for the manufacturer. Thanks for letting me know

        2. Do you mean the tire beads rolling off the rim, thereby exposing the inner tube and probably causing it to explode. Or the wheel coming off, likely due to the quick release being left in the open position.

          1. Hopefully someone responds, because it may be that simple quick release which seems to cause some of the negative reviews.

          1. Thanks for the video t-bone. That’s a great link for everyone who purchased these bikes. I still haven’t seen them on the shelves since they sold out a month or so ago. Thanks for stopping by

              1. Awesome! Glad you were able to get your hands on one. Please come back and let me know how you like it. I also just saw them in stock at my Costco, so they must have gotten some shipments in

          2. I just bought two of these at Costco in Henderson NV. I started looking at hardtail mountain bikes a few weeks ago as a gift for my daughter. I did not want to spend more than ~$700. There are no bikes available! Back ordered 100 to 200 days. During our monthly trip to Costco today, right after stopping at my 2nd local bike shop, I saw these!! The front/back Shimano derailers are better then what is on the $600/700 bikes. Has disc brakes. Aluminum frame. Two mounts on frame. Only downside I saw was cables not run inside frame. But at this price, I bought 2! Definitely a value play at this price!

            1. Awesome! Glad you were able to get your hands on a couple. Thanks a lot for stopping by a leaving a review. Please come back after you’ve put them through the test & let me know how they performed. It’s pretty tough to beat for $350. Let me know how the daughter like it as well.

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