Breezer, one of the oldest and most esteemed names in mountain biking, continues in their legacy of creating superbly designed 29er hardtails with their 2012 edition Breezer Thunder Sport. A fixture in the mountain biking world since its inception in the 1970s in Marin County, Joe Breeze's D'Fusion shaped aluminum tubes that make up the frame are the key to unlocking both trail speed and power. The unique D-shaped profile on the top and down tubes near the head tube intersection and at the top tube/seat tube intersection strengthens the design. Significant stress travels through these joints and D'Fusion tubing's broader cross-section diffuses that load over a wider area, reducing the risk of fatigue. In the rear triangle, D-Fusion adds rigidity to the chain stays through a wider cross-section, while positioning the broader area outboard to reduce chain suck. D'Fusion tubing eliminates ride-deadening and lets the tubing do the lightweight power transferring it was designed to do.
Additionally, the Apex disc mount places the rear brake caliper on the chain stay instead of the seat stay. The increased diameter of the chain stay provides a huge increase in torsional stiffness over the smaller seat stay. Not only is braking performance increased and trail chatter decreased, but the brake is also safely protected instead of dangling off the seat stay.
Up front, the SR Suntour XCR LO 29 suspension fork helps smooth out the rough stuff with its 100mm of travel. Components-wise, the Thunder 29 Sport features a 3x9-speed Shimano Acera/Alivio drivetrain that ensures smooth efficient gear changes as well as a wide range of gears to tackle the steepest ascents as well as the most blazing of downhills. When the time comes to trim some speed, the Thunder 29 Sport's SRAM Elixir 1 hydraulic disc brakes with a 180mm front rotor and 160mm rear rotor provide confident braking in all weather conditions.
The esteemed Wilderness Trail Bikes supplies the wheelset's rims - their SpeedDisc All Mountain 29 model - as well as the Prowler SL Sport 29 x 2.1" tires for the proverbial feather in the cap of this rock solid cross country mountain bike set-up.
Breezer D'Fusion hydroformed custom-butted 6066 aluminum frame with integrated head tube, asymmetrical chainstays, and a BB92 Press-Fit bottom bracket
SR Suntour XCR LO 29 suspension fork with 100mm of travel
Shimano 3x9-speed Acera/Alivio drivetrain provides smooth shifting and a wide range of gears to tackle any terrain
SRAM Elixir 1 hydraulic disc brakes with 180mm/160mm rotors
Wheelset features WTB SpeedDisc All Mountain 29 rims and WTB Prowler SL Sport 29x2.1" tires
Oval Concepts aluminum handlebar, stem, and seatpost