ABSOLUTE BLACK Chainring Direct Mount oval BOOST 148 | 1-speed narrow wide SRAM crank | gold
SRAM's XX1 group ushered in a new era in mountain biking. A chainring at the front and a broadly graded sprocket block at the rear now adorn many bikes from cross country to all-mountain. Absolute Black has developed a combination of single chainring and spider that can be mounted on any SRAM GXP crank from groups XX1, X0, X9 or X7. The combination is screwed directly to the crank arm. This saves weight, is very stiff and ensures a clean and individual look. A 7075 Txxx aluminum alloy ensures low wear. The chainrings have special teeth that prevent the chain from jumping off. The principle follows that of the SRAM XX1 chainrings. In connection with a SRAM Type2 or Shimano Shadow+ rear derailleur, which have a greatly increased preload of the cage, the chain is reliably held in position even without a chain guide.
The ovalization of the chainring increases performance by varying the drive train and optimizing resistance. When kicking with the legs, the natural strengths and weaknesses are brought into line. This achieves better use of the stronger muscle groups and creates a balance in the weaker muscles on the way to work (less stroke).
This chainring is specially designed for the new BOOST 148 standard. The slight offset optimizes the chain line for the new 1x drives.
Note: compatible with SRAM/Truvativ GXP and BB30 cranks . BB30 cranks are only compatible if it is the longer axle model. These can be recognized by the built-in 16 mm spacer on the drive side.
Technical specifications:
Area of intended use : MTB
Material: Aluminum 7075 Txxx
Technology: Narrow Wide
Mounting: direct mount
Number of teeth: 28, 30, 32, 34 or 36 teeth
Compatibility cranks : SRAM/Truvativ crank (XX1,X01, X0, X9, X7...etc.)
Compatibility chain: 10-speed , 11-speed or 12-speed (SRAM Eagle)
chain line : 52mm
Offset: 3mm
Ovalization: 10.2 - 14.4%, maximum diameter at 110.5 - 116.3° crank position after top dead center (optimized for each chainring size)
Color gold
Weight according to the manufacturer: 50g (28T), 55g (30T), 59g (32T), 66g (34T), 69g (36T)
Weight weighed: 53g (32 teeth), 69g (36 teeth)
Scope of delivery: 1x oval chain ring ABSOLUTE BLACK Direct Mount BOOST 148 | 1x narrow wide SRAM crank