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View all Co-op Cycles Hardtail Mountain Bikes

Size chart

Sizing notes

Measurements are stated in millimeters unless otherwise indicated.

Reviews

Rated 5 out of 5 by from Fantastic Bike This bike is just awesome. I never had one like that before. I'm not a very experienced biker and I was first a little nervous about how and when to change gears. In the store they told me that with this bike it would be really "very intuitive" and easy to figure out. I confirm! I'm having a great time and I love my new bike!
Date published: 2017-03-12
Rated 5 out of 5 by from Best Mountain Bike for the Cost! I purchased this bike and I couldn't be happier! It is a beautiful and wonderfully designed bike and the cost is phenomenal. The hydraulic disk breaks respond nicely and are extremely efficient. I love how easily the bike shifts through gears, that you can adjust the suspension without effort, and the quick release tires are always a huge plus. This bike is a steal at this price. I love the mat finish in a sky/gray blue and the accents are a beautiful red color. The seat is a good standard seat but it's the only thing I've found that this bike isn't a 5 star on. Granted it is a mountain bike and I won't be sitting during a good portion of my riding. This thing is great for trails, off road, and even town riding. I did all my research online before I went in store to purchase. The Bozeman Montana REI was extremely helpful and friendly while answering my bombardment of questions. Would happily send a friend to them who was looking for a new bike. Worth every cent.
Date published: 2017-03-28
Rated 4 out of 5 by from Great MTB for Short Riders Trying to find the right size bike for my petite wife was rather educational. REI (Englewood, CO) was very helpful in finding the right size. Problem being, there are only so many XXS MTB out there. The "new" CO-OP bikes are great, especially finding the right size. Build is solid, light and trail ready.
Date published: 2017-05-06
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Questions & Answers

Can someone 4"10 fit on the XS or would it likely be too big?

Asked by: SlickWilly
The key to finding the proper bike frame size is by measuring your total inseam (not pant inseam) while wearing your cycling shoes, and then comparing it to the standover height of the bike. We attach sizing charts to every bike we sell on REI.com to help you determine the correct size and fit. For more information on sizing a bike and measuring your inseam, please click the following link: https://www.rei.com/learn/expert-advice/bike-fit.html#BikeFrameStandoverHeight
Answered by: REIservice
Date published: 2017-05-22

Will this bike fit on a Yakima hitch mount, or will it need a tube adapter? Thanks!

Asked by: GreatWhiteNarwhal
​This will fit on the Yakima hitch bike racks without a top tube adapter. The front wheel will sit lower than the rear wheel.
Answered by: REIservice
Date published: 2017-03-21
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