Unique Engineering Unlocks a Powerful and Consistent Cadence
The history of oval chain rings in cycling includes few less-than-successful attempts. It's long since been understood that an oval chain ring could theoretically enhance the power and consistency of a pedal stroke, but previous attempts have caused gearing problems and even knee injuries. The dream of making a functional oval ring was all but abandoned until Absolute Black came along. The Premium Oval series has been meticulously engineered to provide riders with power and consistency through their pedal stroke. The shape is proven to eliminate dead spots and optimize power transfer. In the process of creating an efficient performance ring, Absolute Black also discovered that the oval design reduces peak loads on knee joints, therefore providing a pedal stroke that's actually easier on your knees. By spreading the load across a greater muscle mass, the Premium Oval rings keep you going faster longer.
Oval shape complements your body's biology to provide a more powerful and consistent pedal stroke
Lightweight 7075 Aluminum construction
Compatible with Shimano Dura-Ace 7900,7950, 7800, Di2, Ultegra 6750, 6700, Shimano 105-5700, Tiagra, 4650, FSA, Rotor 3D, 3D+, S-Works, and many more. Also fits Sram Force, Red (Not compatible with Force22 or Red22)
Incredibly quick shifting, stiff, gorgeous oval rings that will help you climb longer and more comfortably!
This is not my first oval chainring experience, but it is my first experience with oval chainrings that shift (all my previous ones were narrow-wide ovals). I was exceedingly pleased with absoluteBLACK's narrow-wide 30T ring for my M8000 XT crank and with their 38T 110bcd 5-bolt narrow-wide cyclocross ring that I used to convert my gravel bike to 1x10, so much so that I decided to risk potentially degraded shifting performance to upgrade my road bike's compact double chainset with a pair of these rings. I wanted to enjoy the benefit of improved out of the saddle pedal stroke smoothness, reduced climbing-induced fatigue and eliminated knee pain from their oval rings, and hoped that shifting would still be okay. Upon swapping the rings in, I found that it took me significantly longer to get the front derailleur dialed into place for optimal shifting than it normally takes me with the stock, circular rings, but when I finally got it right, I was downright pleasantly shocked at how quickly these rings are able to shift from small to big ring (big to small is always easy no matter what rings you use)! I believe the amazing shifting performance comes from the aggressive shift ramp sculpting on the back of the large ring that grabs and lifts the chain right up, combined with the incredible stiffness from the beautiful design work—the shifting feel very much resembles that of Wickwerks' chainrings with their Levatime shift ramps!
50T & 36T Premium 110bcd 5-bolt oval rings from absoluteBLACK mounted on my SRAM Force GXP crankset
Will not fit on SRAM 22. SRAM 22 has a 5 bolt pattern, but one of the bolts is behind the crank. This ring is for older style SRAM (10 speed) and Shimano where all 5 bolts are visible from the outside. SRAM Red & Force 10 speed. Absolute Black does make 5-bolt rings specific for newer 11 speed SRAM with one of the bolt holes behind the crank, but this ain't it. You want the one I attached below.
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