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  • Hydroformed aluminum frame is stiff and strong for agility and durability
  • Steep seat tube angle creates an efficient riding position for climbs
  • Rock Shox 30 Silver RL SA suspension fork offers 100mm of travel
  • Full Shimano 2x10 speed drivetrain offers 20 capable gear combinations
  • Shimano hydraulic disc brakes provide powerful, controlled deceleration
  • Michelin Country Race'R 2.1"-wide tires offer great speed and control for any trail conditions
  • REI is proud to be the exclusive U.S. retailer of GHOST brand bikes
  • Specs are subject to change


All bicycles sold at REI include a free warranty tune-up. New bikes go through a normal break-in period, after which readjustment is important for longevity and performance. Bring your new bike in to your local REI for its free tune-up within 20 hours of use or 6 months from purchase, whichever comes first. Contact your nearest REI bike shop to schedule this important service.


When you purchase your GHOST-brand bike on, have it shipped to any REI store where it will be ready for pick up fully assembled (and you'll avoid the home-delivery oversize shipping charge)!

View all GHOST Hardtail Mountain Bikes

REI membership


Best Use Mountain Biking
Mountain Bike Style Cross-country
Frame Kato alloy HT
Bike Suspension Front Suspension
Fork RockShox 30 Silver RL SA 100 mm
Fork Travel 100 millimeters
Crankset Shimano Deore 36-22
Shifters Shimano Deore
Front Derailleur Shimano Deore
Rear Derailleur Shimano XT 10-Speed
Rear Cogs Shimano CS-HG50 11-36
Number of Gears 20
Brake Type Hydraulic Disc Brake
Brakes Shimano 315 hydraulic Disc 160 mm
Brake Levers Shimano 315 hydraulic Disc
Rims ALEX TD19
Front Hub Shimano HB-RM 35 QR
Rear Hub Shimano FH-RM 35 QR
Wheel Size
S (27.5 in)
27.5 inches
M (27.5 IN)
27.5 inches
L (29 in)
29 inches
XL (29 in)
29 inches
Tires Michelin Country Race'R 27.5/29x2.10
Handlebar Shape Riser Bar
Handlebar GHOST Low Rizer 720 mm
Stem GHOST AS GH2 31.8 mm
Seat Post GHOST light DC1 31.6 mm
Saddle GHOST VL-1353
Pedals N/A
Chain Shimano CN-HG54
Weight 29 lbs. 12 oz.
Bike Weight Weight provided is that of the as-sold median size (or the average of two median sizes).
Gender Unisex

Size chart

Sizing notes

All measurements are stated in millimeters or degrees unless otherwise indicated.

Graphic of a bike and its measurements

How we measure bikes

Understanding bike geometry helps you get a perfect fit.

1. Reach

2. Stack

3. Effective Top Tube

4. Seat Tube Center to Top

5. Standover Height

6. Head Tube Length

7. Head Tube Angle

8. Seat Tube Angle

9. Bottom Bracket Height

10. Wheelbase

11. Chainstay Length

12. Fork Offset

Rated 5 out of 5 by from Roadie Converter. This review is written by a 'Roadie' who wanted a mountain bike. Here we go. Buckle Up. Why did I buy this bicycle? I had a budget around $1000 since I knew I was going to use this bike, probably abuse it, and needed something that would take what I throw at it. I'm picky when it comes to components. I don't care if Apex shifts like Force, Force is carbon and sounds cooler. This ride has almost all Deore, and an XT RD. Solid build. Most lower end/beginner MTB's have SunTour or just plain 'Shimano' branded cranks that are probably triples (don't ride triples, drink them) and that's not coool. SO, why did I purchase this bike? Componentry, matched with a 200-250 dollar fork. I figure your moving parts are worth investing in, especially off road. Me. I'm 6' 3", 180, and clumsy AF. I knew this bike would be crashed from day one and so far four 2+ hour rides in going HAM, I have zero complaints. I smash my wheels into ruts, shift under loads ALL the time, and basically do everything you shouldn't do. The bike performs flawlessly. Even when I set it up out of the box I had minimal adjustments to set it up how I like. Cable tension, small spoke tensioning, remove reflectors... Ready to ride after slapping on some spds. Seriously though. Almost 3 hours in on the trails and I'm still comfortable if I hadn't sawed my legs off yet. I've endo'd twice and smashed into many trees, still shifts flawlessly. Should you buy this bicycle? Yes. It's awesome. I knew I shouldn't buy carbon because of how much I'll crash, but this bike isn't excessively heavy either. Just around 30 lbs. out of the box with pedals. I'm going to upgrade contact points (seat post, saddle, stem, bars, along with shifters, and xtr cassette) and I'm sure after upgrades I can take a couple pounds off. Planning on using the Shimano hubs that come with the bike and re-lacing them to some Stans hoops. Hubs are solid, but rims aren't tubeless ready. I've considered going ghetto tubeless, but might as well just re-lace. For the price, bike can't be beat. Only bad thing I have to say is the saddle has a weird rubbery coating on it so your butt really grips it. Not even that bad of a thing, but your legs will feel this. Other than that, great bang for your buck.
Date published: 2016-11-26
Rated 5 out of 5 by from Love it so much I bought another I can't improve on the first review, but I can heartily agree. I bought mine for much the same reasons: price point, higher value components than competitors in same price range. I wasn't entirely sure I'd really take to MTB and so wanted something not too pricey but very forgiving. The Kato 5 (27.5 in Medium) was just the thing. Very stable, controllable, and a great climber. I recall a couple episodes in which I knew I had cut it too hard/late and thought "helmet field test time", only to find that the bike absorbed it easily and awaited my next command. Kato expertly introduced me to MTB. Mine was last year's model and had an entry-level front shock, my only complaint, but they clearly fixed that issue in this 2017 version. Full disclosure: not sure how to say this, but I got so excited about MTB that I've upgraded to the Ghost SLAMR. It wasn't you, Kato, it was me. I'm getting older now, and the full suspension, drop seat, components, becomes more important, you know? You're a great bike!! And we'll always have Lost Lake up at Tahoe.
Date published: 2017-03-10
Rated 5 out of 5 by from Really solid and great ride Have taken the bike out twice on bike trails and loved the handling and feel of the bike. I used a Specialized Pitch several times before but this one has a higher clearance and better suspension
Date published: 2017-04-12
Rated 5 out of 5 by from Excellent entry level bike I have had the bike a few weeks now and have several rides on it. From urban trails, to single track to desert trails, it has performed flawlessly so far. Quality components out of the box make it a versatile ride.
Date published: 2017-03-23
Rated 5 out of 5 by from Great bike at a great price Purchased this bike because I needed a XL frame since I'm 6'7" and it fits me very well. I also like that the frame is made in Germany, not a stamped out version from Giant. I got the 29" in black and blue lettering. She rides great and the front shock soaks up the single track riding I do here in the Hudson valley. Happy with the 20 speed drive train. She climbs well for a big bike. If you're looking to get into mountain biking, the Ghost Kato should be on your list.
Date published: 2017-06-12
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Does this bike come with lock on grips?

Asked by: Apulido
This bike does not come with lock-on grips.
Answered by: REIservice
Date published: 2017-03-29

I'm 5'11" with a w 32" inseam, what size should I get?

Asked by: Robbie
​Based on your height and inseam, we recommend a large frame in this bike.
Answered by: REIservice
Date published: 2017-04-16

Are shimano deore hydraulic disc brake levers compatible with the brakes on this bike?

Asked by: Apulido
​Yes, those Shimano disc brake levers are compatible with this bike.
Answered by: REIservice
Date published: 2017-03-20

How much would it be to convert it to tubeless?

Asked by: RVA MTBer
Unfortunately that information is not available. We encourage you to contact the bike shop for further information:
Answered by: REIservice
Date published: 2017-04-25

Is this fork coil suspension or air?

Asked by: 31773jojo
​This information is not available.
Answered by: REIservice
Date published: 2017-04-27

I'm 5'8 180 lbs, what size should I get?

Asked by: T0101
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 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:
Answered by: REIservice
Date published: 2017-04-10

Is the shock air or coil?

Asked by: wsr
The front fork on this bike is air.
Answered by: REIservice
Date published: 2017-02-27

Does this bike have internal cable routing

Asked by: Apulido
​This bike does not have internal cable routing.
Answered by: REIservice
Date published: 2017-02-27
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