Overdrive 12

The bike industry often sees fads come and go. Innovation doesn’t always assure success or even relevance for that matter. But the 29er revolution seems to be one that’s here to stay and for good reason.

There’s no denying the rock crawling, root crushing power of a larger wheel. Making the largest of obstacles the smallest of matters is a defining trait of these muddy beasts. By offering decreased rolling resistance, increased traction when cornering and improved ground clearance, one ride upon one of these massive behemoths is sure to sway even the staunchest skeptic.

Benefits of a 29” Wheel

  • Angle of Attack – Larger wheels decrease your angle of attack by allowing you to roll over obstacles easier and faster. Bigger wheel = smaller obstacle.
  • Momentum – A larger wheel enables one to carry momentum easier though obstacles.
  • Surface Contact – 29”wheels are less prone to sinking in soft material such as sand and mud due to the larger contact patch causing lower ground pressure. The longer contact patch increases cornering and straight line traction
  • Stability – The relative position of the bottom bracket/cranks to the axles in the wheels also means that your relative center of gravity is lower. This results in a feeling of riding “in” the bike rather than on top of it.
  • Tire Clearance – with more tire choices than any platform, the 29”wheel easily accommodates off road as well as commuting tires.
  • Taller Riders – 29" bikes tend to offer taller riders a more “natural” frame geometry.

The Diamondback Overdrive packs a punch in terms of value and affordability and takes 29ers to a new level. The newly revised 2012 6061-T6 Aluminum Overdrive series frame boasts of newly formed top and down tubes, a machined headtube, and forged drop outs with a replaceable derailleur hanger. The matte or gloss black finished frame with the contrasting highlights on the TT gives the frame a very “super car inspired” look and feel.

The Geometry is spot on. The ever so sloping top tube provides ample standover clearance. A 71° head tube angle and a 73° seat tube angle create the perfect XC/trail geometry. The 390mm (15.4 inch) chainstays equate to an extremely snappy rig and the ability to easily get the front wheel off the ground – something that not all 29ers can be so proud of.

The Overdrive is a fantastic entry level 29er well balanced between value and performance. The SR Suntour XCT gives you 100mm of travel for the perfect amount of cushion up front. Add to that Disc brakes courtesy of Tektro and you have one of the best in class values for an entry level 29er period.

The Sram X-4 shifters and rear derailleur make the going easy while the Shimano TX50 dual pull front derailleur keeps the shifting smooth for the SR Suntour XCT crankset (22/32/42t). Add in Weinmann SL-7 double wall rims with WTB Wolverine Race folding aramid bead and you can ride this bike over pretty much anything. Diamondback signature alloy handlebars, stem post and Race saddle w/tubular cromo rails round out this package.

The 2012 Overdrive is an economical means of getting into a new 29er. Whether it’s your first 29er, you’re just “testing the waters”, or whether you want to add a new steed to the stable. The Overdrive is offered in SM (16"), MD (18"), LG (20"), and XL (22") are sure to offer the value and quality that you are looking for in a new 2012 Overdrive 29er.

Highlights:

  • Butted 6061-T6 Aluminum Overdrive 29r Frame
  • SR Suntour XCT 29" 100mm Fork
  • Sram X-4 rear derailleur w/X-4 8spd trigger shifters
  • SL-7 Double Wall Rims
  • Tektro Novela Mechanical Disc Brakes

Bike Specs

Sizes 16" Small  18" Medium  20" Large  22" XLarge 
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
Rear Shock N/A
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
Cassette 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"
Colors Black
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, Clear Coat, 3 extra inches of wheel diameter!
Note Specifications Subject to Change

Geometry

Size 16" Small 18" Medium 20" Large 22" XLarge
Seat Tube Length ** 16.0" 18.0" 20.0" 22.0"
Standover Height 29.5" 30.0" 31.5" 32.75"
Top Tube Length * 22.0" 23.5" 24.5" 25.5"
Head Tube Length 95.0mm 105.0mm 120.0mm 135.0mm
Head Angle 70.0° 71.0° 71.0° 71.0°
Seat Angle 73.0° 73.0° 73.0° 73.0°
Wheel Base 1062.0mm 1091.0mm 1112.0mm 1131.0mm
Chain Stay Length 440.0mm 440.0mm 440.0mm 440.0mm
Fork Offset 38.0mm 38.0mm 38.0mm 38.0mm
BB Height 313.0mm 313.0mm 313.0mm 313.0mm
Stem Length 60.0mm 75.0mm 90.0mm 90.0mm
Handlebar Width 670.0mm 670.0mm 670.0mm 670.0mm
Crank Length 170.0mm 175.0mm 175.0mm 175.0mm
Seat Post Length 350.0mm 350.0mm 350.0mm 350.0mm
* Measured Horizontally ** Measured from Center

Fit Calculator

Bike Type

Gender

Measurement Units

Back

Based on your input...

Your Bike size is:

Back
Site Map Diamondback For Life