Swissbike X90


X90 Mountain Folding Bike

Mountain Performance

The highest performance folding mountain bike ever created, the X90’s off-road capabilities are unmatched. This 30-speed hardtail will take you over the toughest singel track, and still fold into the trunk.

The Essentials

• Speeds: 30
• Wheel Size: 26″
• Folding Time: 20 sec.
• Folded Size: 36″x28″x12″
• Approx Weight: 27lbs
• M.S.R.P: $2,449.00


Great For

• Race day.
• Epic mountain rides.
• Fast single track.
• Technical cross country.

Bike Sizing

• 18in Frame: For riders 5’3″ – 5’10”.
Standover height is 30″
• 20in Frame: For riders 5’11” – 6’4″.
Standover height is 31″


The Montague SwissBike X90 is an aggressive 30-speed folding hardtail with a stiff frame providing both performance and portability. With 26” wheels, it’s a full-size bike with full-size performance, but folds to fit in the trunk of a car or a small closet. This rugged folding bike is built to last, handle any terrain, and carry a ton of gear.

Montague X90 folding mountain bike

Independent Review

“The more I rode this bike the more I began to enjoy myself. The tyres handled the conditions confidently, subject to the usual rules of staying off wet roots, not pushing your luck on greasy timber boardwalks, and avoiding the mud wherever possible.

At speed, the descending was stable and confident. The narrow bars compensated somewhat for the relaxed geometry so the bike was far more flickable than expected from the slack steering angle. It also meant fitting into the gaps between the trees and bridge handrails was easier. The short top tube was actually an asset when the trail pointed down, giving the bike great technical descending ability over the tricky roll-downs on my local trail. The Montague really seemed to carve on the turns, and the bike felt really sound, firm, and well planted. At no time did I notice that I was riding a “folding” bike – it seemed every bit as solid as my regular hardtail.

Braking was excellent, requiring only the index finger to pull up my 90kg riding weight with ease. Shifting was reliable and smooth despite being sprayed with mud and wet Sydney sand for the entire duration of test riding. The wheels felt strong and stiff, easily handling the beating I gave them over rough rock gardens despite the relatively low volume rubber. The suspension seat post was welcome on these trail sections! Folding this bike and reassembling it is really simple, and folding can be completed in about 20 seconds, less with practice. A neat nylon carry bag is available, and it has a separate pocket for the front wheel to avoid rubbing on the paint.

This bike is no toy. It has many admirable qualities, not least of which is its confident descending ability. With wider handlebars it will be an excellent all round hardtail. It easily folds up and is opened out again just as quickly. It is refreshing to find a full-size bike with this capability, negating the need to make the handling, performance and safety sacrifices normally associated with smaller wheels. Overall, I was pleasantly surprised by the Montague – it certainly exceeded my expectations.”

John Hawkins

Bicycle Network Australia

X90 Folding Bike Frame System Closeup

CLIX Folding System

Clever integration of the patented CLIX System allows the SwissBike X90 to be folded in under 20 seconds without the use of tools. A flip of the CLIX quick release lever on the top tube and the bike folds to a compact size.

Folding Integrated Technology

The SwissBike Swiss Military® X90 frame is designed around a patented folding system. This design means you don’t need to break the frame in order to fold the bike. Not only does this make it easier to fold, but it makes Montague bikes the strongest folding bike on the market. The Folding Integrated Technology (F.I.T.) is based around the same frame construction concepts as serious full suspension downhill bikes.

X90 Folding System Closeup
X90 Components Closeup

Top of the Line Components

The SwissBike X90 features top-of-the-line components including a Shimano XT drivetrain and hydraulic disc brakes, a RockShox Reba RL suspension fork, and a Shimano Hollowtech 2 crankset. Together with the X90 frame, riders have the performance they need to tackle the trails. You will never know you’re riding a folding bike when you’re charging through the trails on the X90. Roll off the trail and the X90 will fit right in your trunk or closet.


Color Royal Blue/Gloss Black
Frame Custom drawn 7005 Series Aluminum with FIT System.  Power Angle geometry.  Replaceable derailleur hanger and disc mount.
Fork RockShox Reba RL. 100mm travel w/ external rebound adjustment and lockout
Rims Mavic XM319, Black, Alloy, 32 hole with eyelets
Tires Maxxis Ikon. 26 x 2.20” 2-ply casing with sidewall reinforcement.
Hubset Formula Disc, Black, Alloy sealed front & rear with CLIX™ front quick release.
Spokes 14 Gage Stainless, Black.
Saddle WTB, Speed V-Competition with T-Cut Pattern
Seatpost 30.0D Kalloy Uno 45mm Suspension. Alloy, Black.
Handlebars Kalloy. Double butted Alloy, 5 degree backsweep.  31.8 Barbore.
Stem Ritchey MTN-Pro 4-Axis. Alloy 120mm. 31.8 barbore
Shifters Shimano XT Trigger Shifters.
Front Derailleur Shimano SLX.
Rear Derailleur Shimano XT 10-Speed.
Crankset Shimano XT Hollowtech 2 for 10-speed. 42/32/24. 175mm crank arm.
Speeds 30
Brakeset Shimano XT Hydraulic Disc Brakes. 160mm rotors.
Pedals None
Bottom Bracket Shimano XT Hollowtech.
Frame Sizes 18”, 20”
Folded Size 36” x 28” x 12”
Approx Weight 27lbs
MSRP $2449.00
Specifications and prices subject to change without notice. Bike specifications and prices for your country may differ. We do our best to ensure that the listed specifications accurately reflect the parts found on our folding bikes. Even so, we may have to change the component specifications from time to time. We do our best to make sure that all component substitutions are of equal performance and cosmetics as those listed . Also our international distributors often ask us to modify components to better suit their local markets. Please contact your local distributor for information about bikes in your area.

Compare all Mountain bike specifications >>


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