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Diamondback Overdrive 29Er MTB Bike '12

Item #: BI256P02
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Great for cross country, the Overdrive 29er features large 29" wheels and a 100mm Suntour fork.

Frame:     Overdrive 29" Butted 6061-T6 Aluminum w/ Formed Top / Down Tube, machined headtube, forged drop outs w/replaceable hanger, disc only
Fork:     SR Suntour XCT 100mm travel, 28.6mm stanchions
Cranks:     SR Suntour XCT 22/32/42t 
Bottom Bracket:     Sealed Cartridge 
F. Derailleur:     Shimano TX50 dual pull, Top swing, 34.9 
R. Derailleur:     SRAM X-4 8spd 
Shifter:     SRAM X-4 trigger 8spd 
Brake Levers:     Tektro Alloy w/ reach Adjust 
Brakes:     Tektro Novela Disc w/ 6" Rotors 
Gear:     SRAM PG-820 8spd Cassette (11-32t) 
Rims:     32h Weinmann SL-7 Doublewall 
Tires:     WTB Wolverine Comp 29x2.2 
Pedals:     Wellgo Alloy forged, CNC MTB 
Handlebar:     DB Lazer Series 31.8mm low rise 
Stem:     DB AL6061 Ahead 7° 31.8mm 
Seatpost:     DB Lazer Series Micro Adjust 30.9mm 
Seat:     DB Race saddle
Headset:     Integrated FSA Drop-in ACB upper, Zero Stack lower internal cup and cartridge bearing, 1 1/8" 
Chain:     KMC-Z82 
Hubset:     (F) 32h SL-7 Alloy w/ CNC Disc Mount (R) 32h SL-7 Alloy Cassette w/ CNC Disc mount  
Spokes:     Black 14g Stainless Steel 
Grips:     DB4L 135mm Kraton 
Extras:     DB Key Chain, Owner’s manual, H20 bottle mounts, Chainstay Protector, Clear Coat, 3 extra inches of wheel diameter!

Top Tube
Head Angle
Seat Angle
20" 24.5"


Jenson USA is an authorized Diamondback retailer and this product is covered by Diamondback's warranty against defects in materials or workmanship. The warranty term varies by model. To see the full, printable warranty statement, please click here.

In the event of a warranty claim, the retailer (Jenson USA) will be your primary point of contact and will facilitate the claim on your behalf. Call us at (888) 880-3811 x149 or click "Email Us" from our Help Desk page and select "Warranty Claim" as the reason for the inquiry.


by PowerReviews

(based on 3 reviews)

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Reviewed by 3 customers

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Overdrive 29er

By Jr single

from Hampton roads Va

Verified Reviewer


  • Good components
  • Great Frame


  • Entry Level Fork
  • Needs A Lot Of Adj

Best Uses

  • Road
  • Single Track
  • XC

I ride mostly single/xc , bike eats up the roots and handles downhill like nobody's business. Uphills require legwork, but that is to be expected. Pretty light, not as agile as my old 26er but the more I ride it, the more comfortable I get. My buddy I ride with has a Specialized FSR, quite a good bike, and can't keep up on downhills or across root filled areas.not bad for a bike that cost about 1/6 of his!

(1 of 1 customers found this review helpful)


nothing beats the 29er

By spartan13309

from Syracuse, NY

Verified Buyer

Great for the road and the trails. 29 inch wheels definitely help with overcoming the large roots and stones along the trail. The handles have a good grip, but I would still recommend purchasing gloves. Disk brakes seem like a must have, especially in wet conditions. The adjustable fork allows you to play with the amount of resistance, although it cannot be completely turned off for the road ride. The seat is a bit uncomfortable, but this seems to be a common theme with the mountain bike, since you are not supposed to seat all the time. Make sure you tighten the pedals well, using a different ranch from what is included in the package. Pedals will start making a clicking noise after a good ride, unless they are tightened well. Also, before you decide to purchase some random pump look at the valve on your wheels, because some pumps do not work good with this type of valve. Overall, I think it is an amazing bike for someone who just started mountain biking. I can't judge from the perspective of a veteran rider, but as a beginner, I can tell you that you will not be disappointed :)

(1 of 1 customers found this review helpful)


Entry level roller


from AZ Desert

Verified Reviewer


  • Feels more stable
  • Rolls great
  • Speed uptake


  • Average components

Best Uses

  • Cross country
  • Mountain trails

At the price point, no real complaints about this, my first 29'er. For an older rider like myself, getting back on a bike at age 40+, this bike has a much more stable feel. I feel more "in" the bike than "on" it. For that, it inspires more confidence. At first, the weight is deceiving- it feels light, but does not perform light. That can be good or bad depending on your preference. I did not feel like I was going to wear it out fast, but bunny-hopping obstacles is not so easily accomplished.

In time, the bike grew on me and I liked it more and more as I rode. I started with easy stuff and worked up to some Phoenix area mountain trails. I might get out-climbed by a 26, but coming down and rolling over rocks is a breeze! Definitely less jarring than my 26'ers (except for the FS). I do feel like moving up, but I would be hard-pressed to let go of this ample machine. The only real reason to upgrade would be to get the better components for me.

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Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.