Don't let the good price fool you: the Diamondback Overdrive Sport is a classic hardtail that takes advantage of years of development and refinement to outperform bikes that are twice the cost.
- Transfers power to the ground immediately: the slightest force on the pedals travels through a 27-speed Shimano drivetrain and straight to the knobby tires
- SR Suntour 100mm fork (with lockout) and powerful hydraulic disc brakes help you maintain control on descents and bumpy terrain
- Hand-built aluminum alloy hardtail frame for classic simplicity
- Custom formed and butted tubing balances stiffness and weight savings
- Shimano 9-speed drivetrain offers 27 gears for any terrain
- 27.5 wheels roll over obstacles and offer quick handling
- NOTE: Specs and images are subject to change based on component availability
- 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 | Mountain Biking |
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Mountain Bike Style | All-mountain |
Bike Suspension | Front Suspension |
Fork Travel | 100 millimeters |
Crankset | SR Suntour XCR, 44/32/22T |
Bottom Bracket | Sealed Cartridge |
Shifters | Shimano Altus M370 3x9 Speed Rapidfire |
Front Derailleur | Shimano Altus M371, Top Swing, Dual Pull, 34.9mm Clamp Diameter |
Rear Derailleur | Shimano Acera M3000, 9 Speed |
Rear Cogs | Shimano HG300, 9 Speed Cassette, 12-36T |
Number of Gears | 27 |
Brake Type | Hydraulic Disc Brake |
Brakes | Shimano BR-M355 Hydraulic Disc, w/ 180mm Front /160mm Rear Center Lock Rotors |
Brake Levers | Shimano BR-M355 Hydraulic Lever w/ Reach Adjust |
Rims | DB SL-7 27.5" 32h Doublewall |
Front Hub | 32h SL-7 Alloy w/ Center Lock Disc Mount |
Rear Hub | 32h SL-7 Alloy w/ Center Lock Disc Mount, Cassette |
Wheel Size | 27.5 inches |
Tires | Kenda Honey Badger 27.5x 2.2" |
Handlebar Shape | Riser Bar |
Handlebar | Diamondback "Pro Bar", 720mm Wide, 15mm Rise, 31.8 Bar Bore |
Stem | DB 3D Forged, 7 Rise, 31.8 Bar Bore |
Seat Post | DB Alloy Micro Adjust 30.9mm |
Saddle | DB Race M-series Saddle |
Pedals | DB4L Alloy Platform |
Headset | FSA IS-3/NO.11 Integrated Style |
Chain | KMC Z99, 9 Speed |
Weight | 30 lbs. 10 oz. |
Bike Weight | Bike weight is based on median size, as sold, or the average of two median sizes. |
Gender | Unisex |
S | M | L | XL | |
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Height Range | 5'4" to 5'7" | 5'7" to 5'10" | 5'10" to 6'1" | 6'1" to 6'4" |
Reach | 403 | 423 | 437 | 452 |
Stack | 558 | 577 | 595 | 614 |
Effective Top Tube | 574 | 600 | 620 | 640 |
Seat Tube Center-Top | 410 | 460 | 510 | 560 |
Standover Height | 753 | 792 | 829 | 864 |
Head Tube Length | 105 | 125 | 145 | 165 |
Head Tube Angle (degrees) | 68 | 68 | 68 | 68 |
Seat Tube Angle (degrees) | 73 | 73 | 73 | 73 |
Bottom Bracket Height | 305 | 305 | 305 | 305 |
Wheelbase | 1081 | 1109 | 1131 | 1152 |
Chainstay | 430 | 430 | 430 | 430 |
Fork Offset | 44 | 44 | 44 | 44 |
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.