Absolute Black Oval Narrow Wide 104 mm BCD Chainring Black 2024

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 (104BCD) Oval chainring has the ovality of 28/32T and is best for someone who uses currently 29 or 30T round ring.
• 32T (104BCD) oval ring will suit best someone who uses 30 or 32T chainring currently. While pedaling, you will feel quite similar effort to the one riding round 31T ring (as the smallest diameter of the oval is 30T), but you will gain the speed similar to riding 33/34T chainring.
• 34T (104BCD) Oval chainring has the ovality of 32/36T and is best for someone who uses currently 33 or 34T round ring.
• 36T (104BCD) Oval chainring has the ovality of 34/38T and is best for someone who uses currently 36 or 38T round ring.

It is ideal for 1x 9/10/11/12 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.

32T chainring has build-in 2mm spacers and threaded holes (M8x0.75) to accommodate this size on spider. 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.

30T chainring has build-in 2.5mm spacers and threaded holes (M8 / M5) to accommodate this size on spider. It also comes with bolts and spacers in the package: 2x M8 aluminium bolts T30 torx, 2x M5 steel bolts T25 torx and 2x eccentric spacers. This is a patent pending solution

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 :

• Color : Black
• Compatibility :All cranks with 4x 104/64BCD interface. That means Shimano, Sram, Race Face, FSA, etc
• Material : cnc machined 7075 Txxx Aluminum. Long-lasting construction
• Finish : type II anodizing
• Mounting holes : 4 x 104mm and 4 x 64 mm BCD
• Chain options : 10 or 11spd chain for geared bike or 6-8 spd for SS. If used in 1x9 drivetrain - 10spd chain must be used to obtain the performance. (yes - 10spd chain will work great on 9spd cassette)
• Chainguide needed : No. (but for very aggressive enduro riding it is recommended to use an upper chain guide or at minimum bashguard.)
• Oval chainring does not affect the work of rear dérailleur cage at all (video here). Such a ring can be used therefore in 1x9/10/11/12 combination as well as Singlespeed and fixie bikes
• Chain Length : Bypassing the rear derailleur, run the chain around front chainring/largest cog combination. (For the full suspension frame, position the rear suspension for the greatest chain length required. It's usually a normal position where rear shock if fully extended) Add 2 to 4 segments of the chain to this length for proper chain length.
• Designed in UK. Manufactured in Poland (EU)

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): 28T: 127mm ; 32T: 143mm ; 34T: 151mm ; 36T: 159mm

Don't know what bolts to use with 32T oval chainring with integrated threads?

They are a standard bolts. You can use a granny ring bolts (from 64bcd chainring) or use the ones that connect middle and big ring from 3X crank. You can also buy them from us in Bolts tab. Pick "Long" ones. Other sizes like 34 and 36T use "short" bolts.

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 : 41 gr in 32T