This is a 3mm thick adaptor for AXO MTB power meters. It can change the boost version MTB power meter into non-boost version.
This adaptor can only be used with maximum 34T chainrings.
This product includs one adaptor and four chainrings bolts.
WARRANTY: 3 months (from the date of purchase). Damage caused by man-made or accident is not covered by the warranty, including but not limited to crashes, improper installation, etc.