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Absolute Black OVAL Sram Direct Mount BB30 - Flat Chainring N/W
Direct mount Oval BB30 chainrings are designed for Sram BB30/PF30 SHORT spindle cranks. Chainring is flat (as opposed to our GXP model with 6mm offset). Short spindle BB30 cranks have 9mm axle spacer on drive side.
Oval chainrings work because a rider does not produce power evenly through a pedal stroke; they maximize the part of the stroke where power is produced and minimize resistance where it isn't. Oval rings make the spin cycle a lot smoother and are easier on legs while climbing. Believe it (or not), but a round chainring doesn't transfer torque to your rear wheel as smoothly as an Oval one. You will actually feel your stroke to be more "round" with an Oval shape than with a round chainring.
Why it matters? Traction, Traction and Traction. With oval rings rear tire traction improves greatly on loose and slippery terrain. Your legs will be less tired and your speed improved. Climbing will become easier then ever before. It is world's best oval chainring.
* 30T Oval chainring has an ovality of 28/32T and is best for someone who uses currently 28 or 30T round ring.
* 32T oval ring will suit best someone who uses 31 or 32T chainring currently. While pedaling, you will feel similar effort to the one riding round 31T ring, but you will gain the speed similar to riding 34T chainring.
* 34T Oval chainring has an ovality of 32/36T and is best for someone who uses currently 33 or 34T round ring.
It is ideal for 1x 9/10/11 system and Singlespeeds!. Oval (elliptical) chainring does not compromise the work of clutch mechanism in rear derailleur(video at the bottom). It also does not require chain tensioner when using in singlespeed application. Riding out of saddle on the uphill will become more pleasant.Ovality of the chainring is 11%. These chainrings also help you to recover after knee injuries as pedaling becomes smoother and less exhausting. It is the most advanced oval chainring produced.
The most advanced, Patent Pending narrow/wide tooth profile ever produced, guarantee minimum 12 months of excellent chain retention capabilities! We mean it. Always use a new chain with a new chainring.