The brake calipers, which have also been redesigned for one-finger braking, are not only stiffer but also much lighter. They have the improved structure, managing to improve the fit to all hand sizes and facilitate access to powerful and smooth braking from any point on the handlebar. The Paceline X brake disc combines the proven and smooth-running friction ring of the brake disc Paceline with the lightest aluminum spider SRAM has ever produced. The new Red AXS rear derailleur has become even lighter and more efficient. With a wide variety of cassettes, ranging from 10-28T to 10-36T, this wireless marvel features larger pulleys to reduce chain linkage and increase efficiency, as well as an Orbit fluid damper to keep everything in its place. site on the roughest terrain.Compared to the previous version, SRAM engineers were able to save 16 grams. The Red AXS front derailleur guarantees fast, precise and silent shifting in all conditions. It uses Yaw technology with electronic adjustment to ensure the fastest possible gear change. In addition to a revised gearbox, another new feature is compatibility with all SRAM X-Range 2x chainrings from 46-33 to 56-43 teeth. The new SRAM Red chain has been redesigned from the ground up. The unique flat design of the plates has made the chain narrower, lighter and stronger. The batteries integrated in the rear derailleur and front derailleur have a range of more than 1,000 kilometers. Group technical data: Material: aluminum, carbon, plastic Gears: 2x12 Battery: CR2032 Brake fluid: DOT 5.1 Brake line: 950 mm | 1800 mm Brake type: Flatmount hydraulic disc brake Connectivity: Bluetooth and ANT+ Chainring compatibility: 46-33, 48-35, 50-37, 52-39, 54-41 or 56-43 teeth Cassette compatibility: 10- 28, 10-30, 10-30 or 10 -36 teeth (not included) Front derailleur mounting: Soldare (clamp optionally available) Brake discs: 160 mm Paceline X, Center Lock Battery life: approx. 1000 km Approximate weight: 1424 g (all components excluding cycle computer and charger Technical data HAMMERHEAD Karoo 3: Screen size: 3.2" touch screen Screen resolution: 480 x 800 pixels Color screen Touch screen operation Button operation Water resistance: IP67 (waterproof and dustproof) Charging port: USB-C Battery: 2500 mAh Li-ion battery Battery life: 15+ hours Charging time: 30% in 30 minutes, 100% in 2.5 hours Satellite navigation: GPS, Galileo, GLONASS, QZSS, Beidou Barometer Temperature sensor Acceleration sensor Rotation sensor Compass Processor: quad-core 2.0 GHz Internal memory: 64 GB RAM memory: 4 GB Smart notifications : (display of email, SMS and calls in connection with smartphones) Sensor connectivity: Bluetooth, ANT+ Languages: German, English, Spanish, French, Italian Pre-installed maps: worldwide Color: black In the box: 1x SRAM RED AXS 2x12 Levers include brake calipers and bleed hoses 1x SRAM RED AXS 12-speed rear derailleur with battery 1x SRAM RED AXS front derailleur with battery 1x SRAM RED 12-speed chain 114 links 1x Charger 1x crankset with potentiometer 2x SRAM Paceline X 160 mm brake discs Center Lock 1x HAMMERHEAD Karoo 3rd Generation GPS 1x HAMMERHEAD Advanced Support 1x HAMMERHEAD Adapter for Garmin support 1x HAMMERHEAD USB-C to USB-C Charger Cable 1x HAMMERHEAD Safety Strap 1x HAMMERHEAD Manual