New trends in smaller chainrings ??plus a motive to craft a lighter oval chainring for mountain bikes, resulted in Direct Mount Q-Rings. In addition to biomechanical performance, there was one more important factor when designing our Q-Rings: compatibility. The simplified one-piece design saves approximately 40 grams compared to standard ring+spider+bolts combination (for example, weight savings for a 32t ring is 40g). New Direct Mount Q-Rings allow you to upgrade your SRAM BB30 crankset to go oval. Direct Mount oval chainrings can be dialed in to take advantage of the most-powerful part of your pedal stroke to give you faster acceleration and better traction when you need it most.