SRAM RED AXS Upgrade Kit 2x12 shifters / brake levers incl. hydraulic disc brakes | rear derailleur | front derailleur
With this upgrade kit you can convert your road bike to the new Red AXS 2x12 drivetrain.
AXS HRD shift-brake system
With the new AXS HRD shift-brake system, SRAM has made the biggest leap in development among the new Red components. Both the shape of the hoods and the carbon brake lever have been redesigned. In addition to improved ergonomics for a wider range of hand sizes, the redesigned brake levers offer significantly better power transmission from all handlebar positions. Thanks in part to a modified pivot point and the relocation of the primary piston to the shifter body, it is now possible to brake with just one finger in both the lower handlebars and the hoods. Another highlight is the additional shift button integrated into the hoods, which can also be used to operate ANT+-compatible bike computers. The textured main shift paddles work according to the proven eTap shift logic. One rocker switch for upshifting and one rocker switch for downshifting. If both paddles are operated simultaneously, the front derailleur is shifted. The shifting behaviour can be personalized via the SRAM AXS app and additional SRAM Wireless Blip Shifters can also be integrated. The lever width can of course be adjusted using an easy-to-reach hexagon socket screw. Independently of this, the pressure point on the lever can also be adjusted to prevent contact between the lever and handlebars.
The brake callipers, which have also been redesigned, are not only stiffer but also significantly lighter. The pad gap has been widened for easy installation and friction-free operation. Bleeding Edge technology ensures simple and clean bleeding.
Thanks to the slim design, SRAM was able to save an impressive 83 grams of weight on the Red HRD shift-brake system compared to the previous version.
Front derailleur
The Red AXS front derailleur ensures fast and precise shifting in all conditions. In addition to a revised derailleur cage, another new feature is compatibility with all SRAM X-Range 2x chainrings from 46-33 to 56-43 teeth. Equipped with the proven SRAM Yaw technology and auto-trim function, a slipping chain is eliminated in all gear combinations. With the integration of AXS technology, the shifting behaviour of the front derailleur can be personalized via the associated app. The newly developed setup tool makes it easy to adjust the derailleur position.
Rear derailleur
The new Red AXS rear derailleur has become even lighter and more efficient. Compared to the previous version, the engineers at SRAM were able to save 16 grams. Larger derailleur pulleys with ceramic bearings and X-Sync tooth profile ensure even more efficient chain operation. The speed-dependent Orbit-Fluid vibration damping ensures reliable chain guidance, even in off-road use. You can easily configure and fine-tune the rear derailleur using your smartphone via the SRAM AXS app. An ANT+ transmitter integrated into the rear derailleur enables communication between your bike computer and the rear derailleur.This allows you to display information on the battery charge status and the current gear ratio in your cockpit.
NOTE: SRAM AXS batteries and charger are not included in the scope of delivery.
Technical data:
Material: Aluminum, carbon (rear derailleur cage)
Gears: 2x12
STI version: Shift lever | brake lever for hydraulic disc brake | right and left handlebar side
Battery: CR2032
Brake fluid: DOT 5.1
Brake line: 950 mm | 1800 mm
Brake type: Disc brake | flat mount
Data transmission smartphone | bike computer: Bluetooth, ANT+
Data transmission smartphone | bike computer: Bluetooth, ANT+
Cassette compatibility: 10-28, 10-30, 10-33 or 10-36 teeth
Chain compatibility: SRAM Flattop 12-speed
Front derailleur mounting: braze-on (clamp optionally available)
Chainring gradation compatibility: 46-33, 48-35, 50-37, 52-39, 54-41 or 56-43 teeth
Color: black, silver
Weight according to manufacturer: rear derailleur - 262g, front derailleur - 145g, shift/brake lever set including brake calipers - 690g
Weight self-weighed: rear derailleur - 260g, front derailleur 140g, shift/brake lever set including brake calipers - 707g
Scope of delivery:
1x SRAM RED AXS shift lever | brake lever incl. hydraulic disc brake flat mount | lever left | brake front
1x SRAM RED AXS shift | brake lever incl. hydraulic disc brake flat mount | lever right | rear brake
2x connection kit
4x M5x 27 mounting bolts for brake caliper
4x M5x 32 mounting bolts for brake caliper
1x SRAM RED AXS rear derailleur 12-speed | 36T without battery
1x SRAM RED AXS front derailleur | 2x12 without battery, incl. adjustment tool
1x fixing bolt
1x adapter for 52-56T chainrings
Please note the information on battery regulations