The SRAM RED AXS power meter breaks with tradition — and breaks through to new levels of performance. SRAM reengineered road gearing: reducing front chainring size and adding more range to the rear cassette. They also maintained a 13-tooth delta on all chainring pairs, ensuring precise shifting for any setup. This results in more useful gearing and better shifting across all configurations. These power meters are also designed with Quarq's premier DZero power measurement technology fully integrated into the crankset. Welcome to the pinnacle of the power meter. - X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear - Integrated power measurement - Power meter is fully integrated into the chainring set for lighter weight - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - Power balance measures left and right legs separately - Improved front shifting performance for crisp and accurate front shifts - Unique chainring shape results in a lighter weight, stiffer, more durable crankset - Integrated chainring design significantly reduces weight - DUB bottom bracket adds durability, simplicity and broad compatibility - Speeds: 12 - BB Compatibility: All SRAM Road DUB BBs - BB Spindle Interface: DUB - Chainring material: Aluminum - Crank arm material: Carbon - Power Meter Type: ANT+ and BLE - Bottom bracket not included

Rally RS200 is tested to the extreme, so you can ride there too. This dual-sensing power meter delivers reliable power measurements and is easy to transfer between bikes, no matter what bike you're on or where you're riding. - Impeccably Designed Pedal—Rally power meters have undergone rigorous testing to ensure total reliability. Featuring a superior design with sensors housed inside, these sleek pedals install like any pedal. And they're quick to transfer between bikes. - Advanced Cycling Dynamics—In addition to total power and cadence, Rally RS200 measures much more. These metrics help you tailor your training around your specific weaknesses and strengths to help you improve. - Left/Right Balance—Measure power from your left leg versus power from your right leg to get a better look at how symmetrically you're producing power. - Seated vs. Standing—Track the amount of time you spend in each position and gauge position effectiveness. - Power Phase—Get a clear look at where you're producing power in the pedal stroke. - Platform Center Offset—Ensure proper cleat position by keeping track of where power is applied on the pedal. - Cleat Compatibility—For a comfortable ride, these pedals are designed with your favorite Shimano SPD-SL cleats in mind. - Transferable Spindle—From road to gravel to cyclocross and much more, keep riding year-round. A transferable spindle can be installed in Rally RS road or Rally XC off-road pedal body kits (each sold separately). - Battery Life—Make sure you're ready for those long rides and training sessions with up to 120 hours of battery life. Specs: - Battery type: LR44/SR44 (x4) or CR1/3N (x2) - Battery life: up to 120 hours - Maximum rider weight: 105kg - Accuracy: +/- 1% - Field calibration - Adjustable release tension - Measurement location: spindle - Communication: ANT+ and BLUETOOTH - Weight: 320g - Water resistance: IPX7 - Cleat type: SPD-SL - Q-factor: 53mm (55mm with provided 2mm washer) - Stack height: 12.2mm In the Box: - Rally RS200 pedals - Cleat hardware - 55mm Q-factor washers - Documentation

As you know, matter is composed mostly of empty space, right down to the quantum level: within an atom, most of that atom's total volume consists of relatively vast spaces between the subatomic particles, although the particles do remain tethered to each other by electromagnetic force. Early quantum theory suggests that EM force may consist of "virtual photons" that have no mass and naturally fill such otherwise empty spaces. The overthruster powers two colliding beams (one stream of electrons, one of positrons) which annihilate each other, creating create intermediate vector bosons as a by-product. The vector bosons are then magnetically collected and focused into another beam, now capable of imparting mass to those pesky virtual photons, thereby weakening the EM force that binds matter. Everything reverts to normal pretty quickly, but a fast-moving object (such as Buckaroo's jet car) can pass through the affected matter before the window closes. Greater detail can be found in "Moving Through Matter with Buckaroo Banzai" by Dr. Cary I. Sneider of the Lawrence Hall of Science at Berkeley, first presented at a National Science Teachers Association convention in Boston in April 1984.