Diamondback Overdrive Pro 29'er Mountain Bike (2011 Model, 29-Inch Wheels)

by DiamondBack

Product Features

• 29-inch hardtail mountain bike with butted aluminum frame
• Rock Shox Reba dual air fork with motion control and hollow crown
• Truvativ 5D crank set with sealed cartridge bearing; Avid BB5 mechanical disc brakes
• 29-inch WTB Prowler tires; SRAM SX-5 9-speed trigger shifter
• Comes in 16-, 18-, 20-, and 22-inch sizes; WTB Speed V Sport saddle

Product Description

Amazon.com Product Description

Twentynineinches.com's Guitar Ted summed up the 2008 Overdrive Pro by saying, "The Overdrive Pro gets my thumbs up as a worthy hardtail 29-inch trail rig." About the bike's components, he reported that, "All throughout the test period, the Overdrive Pro's components shined. I was pleasantly surprised at the amount of abuse and adverse conditions they could handle." The Overdrive Pro 2009 offers several upgrades from the original Overdrive, including a Rock Shox Reba SL dual air fork, a Truvativ 5D crank set with a sealed cartridge bearing, a Power Spline bottom bracket, a better rear derailleur, and Avid BB5 mechanical disc brakes. Anyone looking for a good hardtail mountain bike should look no further than the efficient simplicity of the Overdrive Pro.

The Overdrive Pro includes a 29-inch butted aluminum frame and a Rock Shox Reba SL dual-air fork.

Specifications:

• Sizes: Small (16 inches), medium (18 inches), large (20 inches), and extra-large (22 inches)
• Frame: Overdrive 29-inch butted 6061-T6 aluminum with formed top/down tube, integrated headtube, DB snake stays, replaceable hanger, and water bottle mounts
• Fork: Rock Shox Reba SL 29-inch dual air, motion control, ext. rebound, floodgate, compression adjust, lock out, hollow crown, butted alloy steerer, 32mm aluminum stanchionsÿ
• Rear shock: N/A
• Cranks: Truvativ 5D 3.0 Power Spline with replaceable rings, 22/32/44t
• Bottom bracket: Truvativ Power Spline sealed cartridge
• Front derailleur: Shimano Deore
• Rear derailleur: SRAM X-7
• Shifter: SRAM SX-5 9-speed trigger
• Brake levers: Avid FR-5
• Brakes: Avid BB5 disc with 6-inch rotors
• Gear: SRAM PG-950 9-speed cassette (11-32t)
• Rims: 32H WTB Speed Disc, all-mountain 29-inch
• Tires: WTB Prowler SL 29 x 2.1
• Pedals: Wellgo alloy forged, CNC MTB
• Handlebar: Avenir 100 Series 31.8mm low rise
• Stem: Avenir 100 Series, 10 degrees, 31.8mm
• Seatpost: Avenir 100 Series, micro adjust 30.9mm
• Seat: WTB Speed V Sport
• Headset: Integrated "Cane Creek" size drop-in, ACB, 1-1/8 inches
• Chain: Integrated "Cane Creek" size drop-in, ACB, 1-1/8 inches
• Hubset: 32H alloy with CNC disc mount (front), 32H alloy cassette with CNC disc mount
• Spokes: 14g stainless steel
• Grips: DB D2 Kraton
• Extras: DB key chain, Chainstay protector, water bottle mounts, clear coat, owner's manual

Overdrive Pro Bike Geometry
Size	Small	Medium	Large	Extra-large
Seat tube length	16 inches	18 inches	20 inches	22 inches
Standover height	29.5 inches	30 inches	31.5 inches	32.75 inches
Top tube length	22 inches	23.5 inches	24.5 inches	25.5 inches
Head tube length	105mm	105mm	105mm	105mm
Head angle	71 degrees	71 degrees	71 degrees	71 degrees
Seat angle	73 degrees	73 degrees	73 degrees	73 degrees
Wheel base	1,062mm	1,091mm	1,112mm	1,131mm
Chainstay length	440mm	440mm	440mm	440mm
Fork offset	40mm	38mm	38mm	38mm
BB height	313mm	313mm	313mm	313mm
Stem length	90mm	90mm	110mm	110mm
Handlebar width	620mm	620mm	620mm	620mm
Crank length	170mm	175mm	175mm	175mm
Seat post length	350mm	350mm	350mm	350mm

Product Description

Twentynineinches.com’s Guitar Ted summed up the 2008 Overdrive Pro by stating that, “The Overdrive Pro gets my thumbs up as a worthy hardtail 29″ trail rig.” About the bike’s components, he reported that “All throughout the test period, the Overdrive Pro’s components shined. I was pleasantly surprised at the amount of abuse and adverse conditions they could handle.” Few bikes even come close to being comparable to the original 29er. Upgrades from the Overdrive include a Rock Shox Reba SL dual air fork, Truvativ 5D crank set with a sealed cartridge bearing Power Spline bottom bracket, a nicer rear derailleur, and Avid BB5 mechanical disc brakes

Product Details

• Shipping Weight: 25 pounds
• Shipping: This item is also available for shipping to select countries outside the U.S.
• Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
• ASIN: B002LFM33O
• Item model number: DOP29MB
• Average Customer Review: 4.0 out of 5 stars  See all reviews (2 customer reviews)
• Amazon Best Sellers Rank: #369,114 in Sports & Outdoors (See Top 100 in Sports & Outdoors)

Customer Reviews

Most Helpful Customer Reviews

9 of 11 people found the following review helpful:

3.0 out of 5 stars You get what you pay for, November 21, 2010

By 

scwman - See all my reviews

Amazon Verified Purchase

This review is from: Diamondback Overdrive Pro 29'er Mountain Bike (2011 Model, 29-Inch Wheels) (Sports)

Bought for $825 with free shipping. Good value b/c I did not want to spend a ton of money just to try out the 29'er thing. Glad I paid what I did because this bike is not worth more than that. Good news is that I am glad that I did b/c I love 29ers. The Reba on this bike is the best I have used. It is one of the reasons I purchased the bike. But after 3 months of weekend use I have four problems with te bike. First, the seatpost will not stay up. I even acssembled a worm drive hose clamp under the original clamp for backup. It helped a lot but the seatpost still moves. I think the issue is that the seatpost tube is too large and there is a sloppy fit. Second issue is that the spokes are coming loose. I have many loose spokes on the rear wheel. In the 4 bikes and 11 years of mountain biking i have never seen such a poorly built wheel. The Thudbuster LT takes out a lot of impact on the wheel Third issue is that the rear hub is loose. I thought it was the bearings so I adjusted so there was hardly any clearance left. But the rear wheel still moves side to side after it is installed. Forth issue is that the bearings in the rear wheel are very loud. This makes me concerned that the bearing will self destruct. My plan is to use the factory wheels as a backup and install bike path tires on them. They are [not] up to offroad duty.

UPDATE ON FACTORY WHEELS: The front wheel axle was actually bent from the factory. Disc brake adjustment would change dramatically every time the front wheel was removed. Needed to mark the angular orientation with a sharpie. Wheel truing at reputable LBS only lasted one month. Wheels are low grade but OK for bike path.

GENERAL UPDATE: After about a year of riding and tuning this rig is going great. Now have salsa seatpost clamp, Ignitor/Crossmark on Flows run tubeless, and avid BB7s. Kept factory saddle, BB, cranks, shifters, stem, headset. The salsa non-adjustable seatpost clamp fixed the seatpost movement. After a riding harsh rock gardens and few minor crashes I can say the bike has held up very well. At 190 lbs I can pound hard on the cranks. I would add another 1/2 star based on the value if I could. But even with the great value I will not bump up to 4 stars b/c of my time wasted on the problems.

BOTTOM LINE: I would buy again at up to $900. Plan on discarding the wheels, the adjustable seatpost clamp, and possibly the brakes. Tighten every screw and torque the brake screws.

5.0 out of 5 stars GREAT 29er Hardtail !, September 17, 2011

By 

Globaldarkstar - See all my reviews

Amazon Verified Purchase

This review is from: Diamondback Overdrive Pro 29'er Mountain Bike (2011 Model, 29-Inch Wheels) (Sports)

I bought the small 16" for $900. The 2011 PRO model is well worth the money.

First of all, most of the parts listed from Amazon are for the 2009 Pro model. Here are the actual parts that come with the 2011 Overdrive Pro model:

Fork: Rock Shox Recon Gold TK

Cranks: SRAM S800

Bottom Bracket: Truvativ Power Spline Sealed Cartridge

Front Derailleur: SRAM X-5 Low clamp

Rear Derailleur: SRAM X-7 9spd

Shifter: SRAM SX-5 9spd trigger

Brake Levers: Avid Elixer 3 Disc

Brakes: Avid Elixer 3 Hydraulic Disc

This is my first MTB, so it took me approximately 10 hours to assemble, adjust, and fine tune the whole bike.

The easy part was setting up and adjusting the handle bars, levers, shifters, and seat height. The medium level part was tuning both derailleurs. The hard part was tuning/truing the hydraulic disc brakes.

Starting with the derailleurs, reading and following the directions from the manual to adjust them weren't too bad. After ensuring that the gears shift properly, all I had to do was to slowly adjust the High and Low screws from the derailleurs to get rid of the chain rattling and to get the gears to consistently shift smoothly. I noticed the SRAM shifter is for aggressive riders; the thumb shifters need to be pushed firmly. I got used it after awhile when tuning it so it seems fairly easy to shift gears up and down now. The shifters are conveniently located within thumb reach =)

Now for the Hydraulic brakes. Out of the box, the discs heavily rubbed against the pads after installing the wheels. Since the brakes were already bled, I did not want to get into bleeding it and so on (plus I'm new with disk brakes) The manual said to loosen the brake mounts, squeeze the brake levers 5-6 times and hold, and snug (lightly tighten) the mounts to check if the disc rubs. If it rubs (which it did), then repeat the process over until it doesn't rub. Well, I spent several hours repeating these steps. I was getting tired, so I kept going until it rubbed the least. From there, I just trued the discs by eyeballing the rubbing area and bent the disc by hand. Everything was a breeze from there. I re-tightened the mounts and adjusted the levers to my specs.

I recommend taking the time to learn and fine tune the bike before riding because I noticed some of the bolts aren't securely tightened.

All components of the bike work properly and very well. The SRAM gears shift like butter. Once properly adjusted, the chain is able to work with any gear combination without rattling. The Elixer 3 hydro brakes are crazy sensitive and work extremely well.

The Recon Gold works wonders. I'm about 160 lbs. with backpack. The fork is set at 100 psi and mid level rebound. I've taken it off road and done drops, bunny hops, and a few jumps. Haven't bottomed out or had any problems so far.

I think the big wheels take away some of the impact. The 29" also rolls over almost anything in the way.

Negatives:

- The bike needs proper adjustments when assembling, which is time consuming.

- Since it's a 29", distance between the pedals and the front wheel is shorter. For instant, if I pedal with my heel, the tip of my shoes would rub against the front tires when turning. However, this isn't a big problem because I normally ride with the upper part my feet, which avoids the rub.

I would definitely recommend the 2011 Overdrive Pro.

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