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  • Carbon frame is designed for competition, delivering a lightweight, strong and responsive platform for bareknuckled pursuits of speed
  • Carbon fork with tapered steerer uses continuous fibers to maximize strength, stiffness and handling response, all with little weight penalty
  • Oversized, tapered head tube delivers stable handling on tricky descents or corners; oversized down tube and BB30 bottom bracket add stiffness for better acceleration
  • Aerodynamic internal cable routing is both mechanical and electronic compatible
  • Compact FSA Gossamer Pro crankset is paired with 12-30 cassette to deliver 22 gears for efficient pedaling up hills and down descents
  • Shimano 105 shifters and derailleurs offer responsive, consistent shifting
  • HED Flanders C2+ wheelset with 700 x 23 Continental Ultra Sport II tires roll smoothly over the road
  • Pedals sold separately
  • 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 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 Racing Bikes

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Best Use Road Cycling
Frame DBR carbon
Fork Carbon
Bike Suspension No Suspension
Crankset FSA Gossamer Pro, 53/39
Bottom Bracket Press Fit 30
Shifters Shimano 105
Front Derailleur Shimano 105
Rear Derailleur Shimano 105
Rear Cogs FSA CN1101, 11-speed
Number of Gears 22 gear(s)
Brake Type Rim Brake
Brakes Tektro R540
Brake Levers Shimano 105
Rims HED Flanders C2+ alloy
Front Hub Alloy, 20h
Rear Hub Alloy, 24h
Wheel Size 700c
Tires Continental Ultra Sport II, 700 x 23
Tire Width 23 millimeters
Handlebar Shape Drop Bar
Handlebar HED Gran Tour aluminum
Stem DBR 3D forged
Seat Post HED carbon, Di2 compatible
Saddle Prologo Zero-II
Pedals Sold separately
Headset FSA No.42
Chain FSA CN1101
Weight 16 lbs. 15 oz. pounds
Bike Weight Bike weight is based on median size, as sold, or the average of two median sizes.
Gender Unisex
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Will the fork/frame and rims accommodate a 25mm tire?

Asked by: mtldrummer
​This bike will accommodate a 25mm tire.
Answered by: REIservice
Date published: 2017-04-26
  • y_2017, m_5, d_25, h_11CST
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