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.
It is ideal for 1x 9/10/11 and Singlespeeds. Oval (elliptical) chainring does not compromise the work of clutch mechanism in rear derailleur (video here). It also does not require chain tensioner when using in singlespeed application. Riding out of saddle on the uphill will become more pleasant.
All 3 sizes have built-in M8 threaded standoffs to provide the ideal 1X chainline. They improve stock Sram chainline by 1mm. Ovality of the chainrings 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 currently on the market.
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.
Features :
If you wish to check for frame clearance with new oval ring, below you can find measurement of biggest dimension of the oval (tip to tip of tooth): 30T: 134mm ; 32T: 143mm ; 34T: 151mm ; 36T: 159mm
Don't know what bolts to use with your oval chainring with integrated threads?
Please note that original Sram bolts are too short to mount this chainring. You will require longer bolts that can be purchased from us. Pick "Long set of 4" (or use any "double bolts" from another crank)
Proud to inform you that Silver World Champion Marek Konwa is using and testing our elliptical chainrings. Used also by World Champion Maja Wloszczowska!
Weight : 43 gr in 30T
Bonjour, est-ce que ce plateau est compatible avec un pédalier sram NX mono 11v ? Et pour des galets performants pour le dérailleur arrière ( sram GX 11v) , que conseillez-vous ? Merci
Bonjour, ce plateau est bien compatible avec les pédalier NX dotés d'une fixation 4 trous 94 mm
Pour ce qui est des galets nous conseillons ceux de la marque Absolute Black
https://www.purebike.fr/galets-12-dents-pour-sram-11-vitesses
Restant disponibles
Cordialement
Chris
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