Shimano Dura-Ace 9100, R9120, R9150 & R9170 Di2, Ultegra 8000, R8020, R8050 & 8070 Di2., 105 R7000, R7020, R7070, Dura-Ace 9000 & Di2, Ultegra 6800 & Di2, Shimano 105 5800 , Tiagra 4700* (*requires modification -contact us); 10 / 11spd compatible. Not compatible with Power2max. (please refer to section ‘IMPORTANT’ for exceptions and more information)
Our Sub Compacts chainrings are not compatible with certain power meters which have circular spider design (some Quarq models, Power2Max, etc…) If you are not sure about the compatibility of your power meter, please contact our customer service.
Our Sub Compact chainrings only work in predefined size combinations. When ordering add 30t and 46t, or 32t and 48t chainrings to your basket or a set. Mounting bolts are included in the price of the small ring.
Due to very special 2.5mm offset construction of BOTH chainrings towards the frame and custom bolts:
*30T can only work with 46T and special bolt set 46/30. (bolts included with small ring)
*No other combination or mix of rings will work. Due to special mounting construction, aesthetic bolt covers are not offered for this design
*Absolute Black always recommends using a new chain when fitting new chainrings.
*SRAM Yaw front derailleur compatibility – Due to the construction of SRAM Yaw front derailleurs, our Sub Compact chainrings are not compatible with them. If you replace your Yaw front derailleur with a Shimano equivalent (there are no indexing issues between Shimano FD and SRAM shift levers) you will be able to use our Sub Compact chainrings.
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