An excellent performer with an ultra-competitive parts package, Diamondback Overdrive 2 27.5 bike is an aluminum hardtail built for hardtail aficionados or someone looking for a solid starter MTB.
- Hand-built 6061-T6 aluminum alloy hardtail frame is ideal for classic mountain biking
- 27.5 in. wheels roll well over obstacles and offer quick handling
- SR Suntour XCM-HLO 100mm travel suspension fork helps you soak up the bumps
- 2 gears in the front and 9 gears in the back give you a combined 18 speeds to adapt to the terrain
- Shimano hydraulic disc brakes increase your control on every trail
- 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 | Mountain Biking |
|---|---|
| Mountain Bike Style | Trail |
| Frame | Butted 6061-T6 aluminum, formed top/down tube, machined head tube, forged dropouts w/ replaceable hanger |
| Bike Suspension | Front Suspension |
| Fork | SR Suntour XCM-HLO |
| Fork Travel | 100 millimeters |
| Crankset | SR Suntour XCM, 36/22T |
| Bottom Bracket | Steel Cartridge |
| Shifters | Shimano Acera M3010 2x9 Speed Rapidfire |
| Front Derailleur | Shimano MT400, Side Swing, Front Pull, Direct Mount |
| Rear Derailleur | Shimano Acera M3000, 9-speed |
| Rear Cogs | Shimano HG201, 9-speed Cassette, 11-36T |
| Number of Gears | 18 gear(s) |
| Brake Type | Hydraulic Disc Brake |
| Brakes | Shimano BR-M315 hydraulic disc, with 180mm front /160mm rear center lock rotors |
| Brake Levers | Shimano BR-M315 hydraulic lever w/ reach adjust |
| Rims | 32h Diamondback SL-27.5 Doublewall |
| Front Hub | 32h alloy with CNC disc mount |
| Rear Hub | 32h alloy cassette with CNC disc mount |
| Wheel Size | 27.5 inches |
| Tires | Kenda Nevegal Lite, 27.5x 2.35 |
| Tire Width | 2.35 inches |
| Handlebar Shape | Riser Bar |
| Handlebar | Diamondback, 740mm wide, 15mm rise, 31.8mm bar bore |
| Seat Post | DB 3D forged, 7 deg. rise, 31.8 bar bore |
| Saddle | DB Race M-series |
| Pedals | DB4L alloy platform |
| Headset | FSA IS-3/NO.11 integrated |
| Chain | KMC Z99, 9-speed |
| Weight | 32 lbs. 1 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 | |
|---|---|---|---|---|
| Height Range | 5'4" - 5'7" | 5'7" - 5'10" | 5'10" - 6'1" | 6'1" - 6'4" |
| Reach | 398 | 418 | 433 | 447 |
| Stack | 575 | 593 | 611 | 630 |
| Effective Top Tube | 574 | 600 | 620 | 640 |
| Seat Tube Center-Top | 410 | 460 | 510 | 560 |
| Standover Height | 758 | 796 | 831 | 867 |
| 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 | 308 | 308 | 308 | 608 |
| Wheelbase | 1082 | 1110 | 1132 | 1154 |
| Chainstay | 425 | 425 | 425 | 425 |
| 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.