The Diamondback Century Disc bike offers a lightweight, hand-built aluminum frame and dual-control, 9-speed shifters to keep you moving comfortably on your daily commute and casual rides.
- Hand-built 7005 aluminum alloy frame with butted and formed tubing is lightweight yet highly durable
- DBR Podium air-formed disc alloy fork with tapered steerer enhances handling performance
- Tektro Lyra mechanical disc brakes provide unrivaled braking power and control
- Wide range Shimano/FSA 2x9-speed drivetrain offers great performance and value
- NOTE: Specs and images are subject to change based on component availability
Imported.
- 1 year of free adjustments (see more below)
- In-store bike assembly
- Pickup in store or curbside
- Bike experts available at 170+ bike shops
- 20% off shop services
- Free tubes with purchase of flat tire repair (Co-op Cycles brand tubes only; tube must be installed at time of purchase)
New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.
| Best Use | Road Cycling |
|---|---|
| Frame | 7005 aluminum |
| Fork | Aluminum |
| Bike Suspension | No Suspension |
| Crankset | Shimano Sora FC-3550 Compact, 50/34t |
| Bottom Bracket | Shimano outboard bearing |
| Shifters | Shimano Sora ST-3500 Dual Control, 2x9 speed |
| Front Derailleur | Shimano Sora FD-3500, 31.8mm band clamp |
| Rear Derailleur | Shimano Sora RD-R3000, 9-speed |
| Rear Cogs | Shimano HG200 Cassette, 9-speed, 11-32t |
| Number of Gears | 18 |
| Brake Type | Mechanical Disc Brake |
| Brakes | Tektro Lyra Flat Mount mechanical disc, with 160mm front/140mm rear rotors |
| Brake Levers | Shimano Sora ST-3500 |
| Rims | 28h Equation R, double-wall |
| Front Hub | 28h Alloy with CNC disc mount |
| Rear Hub | 28h Alloy with CNC disc mount, cassette |
| Wheel Size | 700c |
| Tires | Michelin Dynamic Sport, 700x28c |
| Tire Width | 28 millimeters |
| Handlebar Shape | Drop Bar |
| Handlebar | HED Tour Flat Top drop bar, 31.8 bar bore |
| Stem | HED Tour Stem, +/-7 rise, 31.8mm bar bore |
| Seat Post | HED Tour, 27.2mm |
| Saddle | DBR Performance Road |
| Pedals | Wellgo Alloy Road |
| Headset | FSA NO.42, sealed cartridge for tapered head tube |
| Chain | KMC Z99, 9-speed |
| Weight | 22 lbs. 2 oz. |
| Bike Weight | Bike weight is based on median size, as sold, or the average of two median sizes. |
| Gender | Unisex |
| 52 cm | 54 cm | 56 cm | 58 cm | 60 cm | |
|---|---|---|---|---|---|
| Height Range | 5'4" - 5'7" | 5'7" - 5'9" | 5'9" - 6'0" | 6'0" - 6'3" | 6'3" - 6'5" |
| Reach | 375 | 372 | 378 | 388 | 392 |
| Stack | 558 | 572 | 591 | 609 | 627 |
| Effective Top Tube | 530 | 454 | 560 | 575 | 590 |
| Seat Tube Center-Top | 490 | 510 | 530 | 550 | 570 |
| Standover Height | 767 | 788 | 807 | 830 | 851 |
| Head Tube Length | 145 | 160 | 180 | 200 | 220 |
| Head Tube Angle (degrees) | 72 | 72.8 | 73 | 73 | 73 |
| Seat Tube Angle (degrees) | 74 | 73.3 | 73 | 73 | 72.5 |
| Bottom Bracket Height | 273.5 | 276 | 276 | 278.5 | 278.5 |
| Wheelbase | 991 | 987 | 997 | 1013 | 1022 |
| Chainstay | 415 | 415 | 415 | 415 | 415 |
| Fork Offset | 47.5 | 47.5 | 47.5 | 47.5 | 47.5 |
Sizing Notes
Bike measurements are stated in millimeters.
How we measure bikes
- Standover Height Standover Height is a measurement from the ground to the top of the top tube, measured at the midpoint of the top tube.
- Reach Reach is the horizontal distance from the center of the cranks to the center of the head tube, measured at head tube level.
- Stack Stack is the vertical distance from the center of the cranks to the center of the head tube, measured to the top of the head tube.
- Effective Top Tube Effective top tube is the distance from the center of the head tube to the center of the seat tube/seat post, measured parallel to the ground.
- Seat Tube Center to Top Seat Tube length is the measurement of the seat tube, from the center of the cranks to the top of the seat tube.
- Head Tube Length Head Tube Length is measured from the bottom to the top of the head tube.
- Head Tube Angle Head Tube Angle is the acute angle between the head tube and the ground (measured towards the rear of the bike)
- Seat Tube Angle Seat Tube Angle is the acute angle between the seat tube and the ground (measured towards the rear of the bike).
- Bottom Bracket Height Bottom Bracket Height is a measurement taken vertically from the ground up to the center of the cranks.
- Wheelbase Wheelbase is the measurement from the center of the front axle to the center of the rear axle.
- Chainstay Length Chainstay Length is the measurement from the center of the cranks to the center of the rear axle.
- Fork Offset Fork Offset, or rake, is the distance from the front axle to a line drawn parallel to the center of the head tube or steering axis.