Oval chainrings work because a rider does not produce power evenly through a pedal stroke. Something cyclists minimize through working on pedalling technique. Oval rings negate the need for the precision in this technique as they maximize the part of the stroke where power is produced and minimize resistance where it isn't. Oval rings make the spin cycle 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.
Our premium 1X RaceFace Boost 148 direct mount Oval chainrings are designed for CINCH system RaceFace uses to mount chainring directly to the crank. This version is for BOOST 148 specific bikes only.
Our premium 1X RaceFace Boost 148 direct mount Oval chainrings are designed for CINCH system RaceFace uses to mount chainring directly to the crank. This version is for BOOST 148 specific bikes only.
. Size (Mass +/-1g): 28T (54g)
. Compatibility: RaceFace Cinch system cranks. RF Next SL, RF SIXC, RF Turbine, RF Atlas, AEFFECT CINCH cranks. 1x12 Eagle compatible.
. Material: cnc machined 7075 Txxx Aluminium. Long-lasting construction
. Finish: type II anodizing
. Chainline: 52mm
. Ovality: Optimized to each size separately. Range: 10.2-14.4% and Timing of 110.5-116.3 after TDC (top dead centre) Patent Pending