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  • Lightweight, strong 6061 aluminum frame offers a stiff, flex-free platform to efficiently transfer pedaling power to speed
  • OPI 1-piece hollow, 3D forged fork with 1.5-in. steerer offers stable, secure and responsive handling
  • Shimano SLX shifters and Shimano Shadow XT rear derailleur shift smoothly through the 30-speed drivetrain
  • Magura MT5 hydraulic disc brakes use dual rotors to provide smooth, controlled deceleration
  • DT Swiss Tandem 29-in. rims are outfitted with knobby Schwalbe Racing Ralph Performance tires for solid grip on a variety of surfaces
  • 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.

Free shipping & Assembly with REI Store Pickup

Cannondale bikes purchased on must be shipped to and picked up at REI stores which are authorized Cannondale dealers. The bikes are fully assembled and the shipping is free!

See the current list of REI stores which are authorized Cannondale dealers.

View all Cannondale Rigid Mountain Bikes

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Best Use Mountain Biking
Mountain Bike Style Cross-country
Frame 6061 aluminum
Bike Suspension No Suspension
Fork Cannondale Fatty Tandem 29 OPI
Crankset Truvativ Firex Tandem, 44/33/22
Bottom Bracket SRAM GXP
Shifters Shimano SLX
Front Derailleur SRAM X7
Rear Derailleur Shimano XT Shadow Plus
Rear Cogs Shimano CS-HG81, 11-36, 10-speed
Number of Gears 30 gear(s)
Brake Type Hydraulic Disc Brake
Brakes Magura MT5 hydraulic disc
Brake Levers Magura MT5
Rims DT Swiss Tandem
Front Hub DT Swiss Tandem, 40h
Rear Hub DT Swiss Tandem, 40h
Wheel Size 29 inches
Tires Schwalbe Racing Ralph Performance, 29 x 2.1
Tire Width 2.1 inches
Handlebar Shape Riser Bar
Handlebar Cannondale C3
Stem Cannondale C3
Seat Post Cannondale C3
Saddle Cannondale Ergo Performance
Pedals Cannondale composite platform
Headset Tange
Chain Drive: KMC Z72; timing: X10
Weight 41 lbs. 4 oz.
Bike Weight Bike weight is based on median size, as sold, or the average of two median sizes.
Gender Unisex

Size chart

Sizing notes

Measurement are stated in centimeters.

Rated 5 out of 5 by from Best bike purchase yet We bought one of these in 2015 and have put many miles on it. We've done a mix of paved, gravel, off-road, and single-track in Colorado. The bike has never let us down.
Date published: 2017-04-27
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Does this tandem bike has independent pedaling system so that the stoker can coast or pedal at a different speed?

Asked by: TandemQ
​No, there is not an independent pedaling system.
Answered by: REIservice
Date published: 2017-04-10

What size bike should a 5'1" woman ride?

Asked by: Jksimo
The key to find 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: 2017-04-27

The size available is listed as L/XL.  However, there is no XL listed on the sizing chart.  Is this just a Large or is it somehow larger than the sizing charts indicates?

Asked by: Bikenrun
​The specifications we have listed on the sizing is for the L/XL, we apologize for the confusion.
Answered by: REIservice
Date published: 2017-03-27

What is the max recommended carrying weight (captain+stoker) this bike will support?

Asked by: TxPaesan
The Tandem 29er Bike has a maximum weight capacity of 575 pounds.
Answered by: REIservice
Date published: 2016-11-12
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