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  • Hand-built carbon EXP frame with Endurance geometry is light and tough
  • 2.1 in. wide tires on 27.5 in. rims embrace cyclocross adventure
  • Mechanical disc brakes and bar-end shifters offer ease of on-trail maintenance and reliability
  • DB Gravel flat-mount full carbon disc fork; 1.5 in. steerer; 12mm thru-axle; fender/low rider mounts
  • Shimano 3 x 9 drivetrain to handle bikepacking and touring
  • HED Tomcat disc wheels
  • Specs 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 Diamondback 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 Diamondback Cyclocross Bikes

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Best Use Cycling
Frame KMC X9, 9 Speed
Fork Carbon
Bike Suspension No Suspension
Crankset Shimano M591, 48/36/26T
Bottom Bracket Shimano BB52
Shifters Shimano Dura Ace BS77, Bar End Shifters, 3x9 Speed
Front Derailleur Shimano Deore M591, Down Swing, Dual Pull, 31.8mm Clamp Diameter
Rear Derailleur Shimano XT M772, Shadow, 9 Speed
Rear Cogs Shimano XT M770, Cassette, 9 Speed, 11-34T
Number of Gears 27
Brake Type Mechanical Disc Brake
Brakes TRP Spyre Mechanical Disc, 160mm rotors
Brake Levers TRP RRL Non-Integrated
Rims HED Tomcat Disc, 32h, 21mm Internal Width, Tubeless Ready
Front Hub 32h Alloy, Sealed Cartridge, HighLow Flange, 12mm Thru-axle
Rear Hub 32h Alloy, Sealed Cartridge, HighLow Flange, 142x12mm Thru-axle
Wheel Size 27.5 inches
Tires Schwalbe Smart Sam, Performance, 27.5x2.1"
Tire Width 2.1 inches
Handlebar Shape Drop Bar
Handlebar DB X-Durance Gravel Bar, 8 Flare, 31.8mm Bar Bore
Stem DB X-Durance 3D Forged Alloy, +/-7 Rise, 31.8mm Bar Bore
Seat Post DB X-Durance, Alloy 27.2mm
Saddle DB Eldorado
Pedals Wellgo Alloy Road
Headset FSA NO.42, Sealed Cartridge for Tapered Headtube
Chain KMC X9, 9 Speed
Weight 21 lbs. 2 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

Bike measurements are stated in millimeters.

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Can this bike accept 700cc tires?

Asked by: KTO2017
Yes! According to the DB rep, the entire Haanjo line is made to accept either 27.5 OR 700c/29" wheelsets. I am not getting a clear answer as to the widest tires it will run, but here is the latest reply from Reinout at Diamondback "All Haanjo Carbon frames are the same and will run 700 or 29" wheels. I stand corrected on the tire width. it will handle up to 45c on most tire brands." he first misinformed me to say it could go as wide as 50c, which is not accurate. Not very cost effective to produce mulitple carbon Haanjo framesets, so whichever model you get can swap rims and tires rather easily. I would prefer a 2x10 and 29'er x 2.0 frankly, and as cool as bar end shifters are, they're not practically when climbing something steep. I bet it hurts should your knee make contact too. but the olive frame color is pretty cool.
Answered by: spychic
Date published: 2017-05-23

Can this bike accept a 27.5+ tire?

Asked by: AdventureRider
This bike cannot accept a 27.5+ tire. There is not enough clearance between the blades of the front fork and seat stays.
Answered by: REIservice
Date published: 2017-04-13

What rear rack would you recommend for this bike

Asked by: Mike
A great choice for a rear rack will be the Topeak Explorer MTX Tubular Rack with Disc Mounts.
Answered by: REIservice
Date published: 2017-03-27

Can this bike accept fenders with the existing 2.1" tires? Or are smaller tires required in order to fit fenders front and back? Thanks.

Asked by: BikerBuddy
This bike can accept fenders. Based on the tire size, we recommend going with mountain bike fenders.
Answered by: REIservice
Date published: 2017-04-27

Is it possible to upgrade to hydraulic disc brakes and a more integrated shifter on this bike? Will it be prohibitively expensive?

Asked by: LentheM
Our warehouse cannot make changes to bikes, but our in-store bike shops can speak to the cost of changing-out parts. Contact your nearest REI store for details:
Answered by: REIservice
Date published: 2017-05-22
  • y_2017, m_5, d_25, h_9CST
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