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Diamondback Century Sport Disc Complete Bike

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Item # DMB0004

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Pedaling in comfort is a given with Diamondback's Century series of road bikes. But what stands as equally important, especially if your wanderlust takes you into urban areas, is your ability to stop on a dime. The Diamondback Century Sport Disc Complete Bike conjoins excellent road manners with unprecedented stopping power in a bike that won't break the bank.

The Diamondback legacy draws upon over a century of road experience to develop a line of bikes for every rider imaginable. And while Diamondback, originally known as Centurion, was formed in 1969, in 1999, its pedigree was married with the expertise of Raleigh Bicycles which was born in Nottingham, England over 130 years ago.

Diamondback's complete line of road bikes spans from the podium placer to the entry-level fitness rider. And while the same attention to detail exists in all of its bikes, the Century Sport Disc features a 6061-T6 aluminum frame instead of the carbon fiber layup that's found in its Century 3 and 4 models. True, this material isn't as light as carbon fiber, but it is increasingly durable and resistant to wear. In fact, it's the go-to frame material for virtually every manufacturer looking at getting riders out on the road for a reasonable price.

To add a little oomph to the build, Diamondback's DB Carbon Road Fork completes the frame. Its construction, using Continuous Fiber Technology (CFT), which means that full-length strands of carbon are laid from the top of the steerer tube to the bottom of the dropouts. Additionally, the fork is the product of Diamondback's Advanced Monocoque Molding Process (AMMP), which is the same process used on the Podium Equipe, Diamondback's lauded road racer. Using this method, carbon plies are hand-wrapped around a polystyrene pre-form core, using a plastic bladder in the shape of the product. To achieve a precise mold during this layup process, the emerging fork is covered with a plastic cavity, which guarantees a perfect form. Silicone mandrel shells are then used to reinforce critical joint areas so as to create smoother overlapping fibers at vital junctions. The entire fork is coated for optimal fiber adhesion. But what does all this mean for you? Well, a carbon fork lends stiffness and handling to your bike, while also providing a smooth road feel.

The eye-catcher of the Century Sport Disc are the TRP HYDR Cable Actuated Hydraulic disc brakes. These provide unprecedented stopping power in virtually any condition, and the brakes feature a 160mm rotor up front and a 140mm rotor out back. For the shift/brake levers and the front derailleur, Diamondback incorporated Shimano's 105 components. The rear derailleur is the durable mainstay of the Shimano line, Ultegra. The drivetrain features a 50/34t FSA Gossamer Pro Compact BB386 crankset, a FSA CN910 chain, and a Shimano Tiagra 12/30t cassette. The cockpit build is a complete repertoire of Diamondback's DBR components. You rest on a DBR Performance saddle, while rolling on Diamondback's new Equation RS wheels that are cased in Michelin Dynamic Sport 700c x 25mm tires

The Diamondback Century Sport Disc Complete Bike is available in the color White and in five even sizes 52cm to 60cm.

Tech Specs

Frame Material:
6061 T6 aluminum
DB Carbon Road fork
Fork Material:
carbon fiber
1.125 x 1.5 mm integrated
Shimano 105
Front Derailleur:
Shimano 105
Rear Derailleur:
Shimano Ultegra 6700
50/34 t FSA Gossamer Pro Compact BB386
Bottom Bracket:
BB 386
test ride
12-30 t Shimano CS-4600
FSA CN-910
Brake Levers:
Shimano 105
Brake Calipers:
TRP HYRD Cable Actuated Hydraulic Disc
[front] 160 mm TRP, [rear] 140 mm TRP
DBR Drop bar
Bar Tape:
DBR Race tape with Gel
DBR Performance Road
DBR Performance Post
DB Equation RS
DB Equation
14g stainless steel
Michelin Dynamic Sport
Tire Size:
700 c x 25 mm
Recommended Use:
road cycling and touring
Manufacturer Warranty:
limited lifetime on frame

sizing chart

Bike size by rider height


Geometry chart


Geometry Chart


Century Disc

Seat Tube


Effective Top Tube






Stand Over

Head Tube


Head Tube Angle


Seat Tube Angle


Bottom Bracket Drop




50cm 47.0cm 51.5cm 53.0cm 36.9cm 74.7cm 12.5cm 72.0° 75.2° 7.3cm 41.5cm 96.7cm
52cm 49.0cm 53.0cm 55.1cm 37.2cm 76.2cm 14.5cm 72.3° 74.0° 7.3cm 41.5cm 96.8cm
54cm 51.0cm 54.5cm 56.3cm 37.5cm 78.0cm 16.0cm 72.8° 73.3° 7.0cm 41.5cm 97.5cm
56cm 53.0cm 56.0cm 58.2cm 38.1cm 80.2cm 18.0cm 73.0° 73.0° 7.0cm 41.5cm 98.4cm
58cm 55.0cm 57.5cm 60.1cm 39.1cm 82.6cm 20.0cm 73.0° 73.0° 6.8cm 41.5cm 99.8cm
60cm 57.0cm 59.0cm 61.5cm 39.7cm 84.9cm 22.0cm 73.0° 72.5° 6.8cm 41.5cm 100.9cm

Geometry Chart

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