Chainrings

SRAM's Red road chainrings are stamped from 7075 aluminum for low weight and excellent strength. The teeth are ramped and pinned for precision shifting, too.

The Shimano R9100 series crankset achieves the ultimate in optimal power transfer. It does this through a more reinforced outer chainring on its unique asymmetrical four-arm spider construction. - Chainring BCD: 110 Shimano Asymmetric - Drivetrain Speeds: 11 - Material: Aluminum - Ring Position/Type: Outer

The Shimano Deore XT SM-CRM85 chainring is designed for use with Shimano's M8100 and M8130 1x cranksets. - Special MTB gear tooth profile with Dynamic Chain Engagement+ improves chain engagement and retention - Direct Mount Type: Direct Mount Shimano - Tooth Count: 28T, 30T, 36T - Drivetrain Speeds: 12 - Defined Color: Black - Ring Position/Type: Chain-Retaining Single Ring - Round or Oval: Round - Chainline/Hub Compatibility: 141/148 Boost Hubs , 157 Super Boost Hubs

Original equipment on SRAM and Truvativ cranks, these chainrings also work well with other drivetrains. - 104mm BCD - Material: Aluminum

Shimano Dura-Ace 9000 11-Speed Chainrings. - Chainring BCD: 110 Shimano Asymmetric - Color: Silver/Black - Defined Color: Silver - Drivetrain Speeds: 11 - Material: Aluminum - Ring Position/Type: Outer

Eagle Technology creates the smoothest, quietest, longest lasting and most efficient drivetrains SRAM has ever made. The radical new look and feel of the X-SYNC 2 Eagle chainring is a direct result of SRAM drivetrain engineers studying the performance and wear characteristics of thousands of X-SYNC chainrings. The longer, positive-rake tooth shape has been designed to work perfectly with Eagle chains to increase chain retention and overall pedaling efficiency, while decreasing friction, noise, and wear. The complete Eagle system—crankset, chainring, chain, shifter, derailleur and cassette—is designed, tested, and proven to deliver the ultimate mountain bike drivetrain. Put simply, Eagle is capable of revolutionizing the ride for all riders on every kind of terrain. - Designed to be used with Eagle chains - Material: Aluminum

Wolf Tooth Direct Mount Chainrings for Trek TQ E-Bike Motors are compatible with all Boost and Super Boost bikes that use the Trek TQ Motor. This brings a lightweight chainring with patented Drop-Stop® technology to e-bike chainrings for the first time. Direct Mount Chainrings for Trek TQ E-Bike Motors are machined with 7075-T6 aluminum at Wolf Tooth in Minnesota, USA. Compatibility: - Chainring is compatible with only TQ Motor drive systems - 55 mm chainline - Available in two different tooth profiles for optimal performance based on your chain type. Use Drop-Stop ST for use with Shimano 12-speed Hyperglide+ and 12spd KMC chains. Use Drop-Stop B for all 9, 10, and 11spd chains or 12spd SRAM Eagle, SRAM Flattop Road or Transmission (T-Type), KMC, Connex or Wippermann chains. DROP-STOP B - Compatible 9, 10, 11, and 12s SRAM Eagle, 12s SRAM Transmission (T-type) Flattop, 12s Campy, 12s KMC - Not compatible with 12s Shimano HG+ chains DROP-STOP ST - Compatible with 12s Shimano Hyperglide+ chain and 12s KMC chain only - Symmetric Trapezoidal (ST) tooth shape is optimized for Shimano HG+ chain Tech Specs: - Weights: 30t/64g | 32t/69g - Material: 7075-T6 aluminum - Made in the USA

Single-speed oriented chainring for 1x DH or DJ application. - 3mm thick CNC machined 7075-T6 aluminum

Narrow/Wide tooth design for chain retention on 1x systems - 10 or 11 speed compatible - Mud clearing channels - CNC 7075 Swiss Alloy

Origin8's Thruster 110mm BCD 5-bolt chainrings are great for road, 'cross, and gravel applications. Their Narrow/Wide tooth design offers outstanding chain retention on 1x systems, and they're 10 or 11 speed compatible. - Forged and hard anodized AL6061-T6 alloy construction - BCD: 110mm 5-Bolt - Type: 1x - Chain Compatibility: 10/11s - Tooth Type: Narrow/Wide

Rugged durability comes naturally to the XX SL Eagle T-Type direct mount chainring. Finished with a distinct, dual-spoke design your shifting will never be compromised. - Light weight and incredibly durable aluminum chainring - 8-bolt direct mount design (Mounting bolts included) - Compatible with SRAM T-Type chains

Designed for use with SRAM's XX SL Eagle power meter, these Thread Mount replacement rings are purpose made for use with the XX SL proprietary spider design. This chainring mount system allows reduced weight without compromising reliability. - Proprietary Thread-Mount design specifically for use with XX SL Power Meter spiders - Light weight and incredibly durable aluminum chainring - Compatible with SRAM T-Type chains - SRAM Threaded chainring tool required for installation (Sold separately - TL0190)

Rugged durability comes naturally to the XX Eagle T-Type direct mount chainring. Finished with a distinct, dual-spoke design your shifting will never be compromised. - 3mm offset - Light weight and incredibly durable aluminum chainring - 8-bolt direct mount design (Mounting bolts included) - Compatible with SRAM T-Type chains

absoluteBLACK Oval 110 BCD 1x Chainrings for cyclocross greatly improve traction for CX or gravel riding. They are designed for all Shimano 5-bolt cranks such as Dura-Ace 7950, Ultegra 6750, Shimano 105 5750, and more. The specially designed narrow-wide tooth profile keeps the chain snug, allowing you to leave your chain keeper in the garage. They are crafted from CNC machined 7075 aluminum and feature an anodized finish for exceptional durability. Ovality has been optimized for each chainring size, ranging from 10.5-11.4%, with timing of 112-113° after TDC (top dead center). - Oval shape reduces stress on knees, helps to keep your legs fresh, and does not feel any different while riding - The unique, patent-pending narrow-wide tooth profile keeps the chain in place - Teeth have been 3D-machined for ultimate mud shedding and quieter operation - Provides excellent weight-to-strength ratio - 12-Speed Eagle compatible - Chainring bolts are included

absoluteBLACK Oval Direct Mount 1x Chainrings for Shimano greatly improve traction and climbing abilities. They are designed for Shimano XTR M9100, XT M8100, and SLX M7100 cranks and will only work with 12-speed Hyperglide+ chains. Direct mount chainrings provide significant weight savings over a standard spider and chainring combination. They are crafted from CNC machined 7075 aluminum and feature an anodized finish for exceptional durability. Ovality has been optimized for each chainring size, ranging from 10.2-14.4%, with timing of 110.5-116.3° after TDC (top dead center). - This chainring will only work with Shimano CN-M9100, 8100, & 7100 Hyperglide+ chains due to the different thickness of the teeth - Oval shape reduces stress on knees, helps to keep your legs fresh, and does not feel any different while riding - Teeth have been 3D-machined for ultimate mud shedding and quieter operation - Provides excellent weight-to-strength ratio

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition.

Dimension Chainrings. - No ramps, pins, or shift aids

This absoluteBLACK 1x Oval Direct Mount Chainring for CINCH is designed exclusively for use with Shimano Hyperglide+ chains (CN-M9100, 8100, and 7100). Oval chainrings greatly improve traction and climbing abilities. They are crafted from CNC machined 7075 aluminum for exceptional durability. Ovality has been optimized for each chainring size, ranging from 10.2-14.4%. - This chainring will only work with Shimano Hyperglide+ CN-M9100, 8100, & 7100 chains due to the different thickness of the teeth - Oval shape reduces stress on knees, helps to keep your legs fresh, and does not feel any different while riding - Teeth have been 3D-machined for ultimate mud shedding and quieter operation - 3mm offset is designed for bikes with Boost spacing and fat bikes (when reversed) - Provides excellent weight-to-strength ratio

FSA Pro Road Chainrings deliver flawless shifting for any road drivetrain. - Precision CNC machined AL7075/T6 alloy

FSA Super Road Chainrings are designed to provide flawless shifting, with minimal weight and unmatched durability. - Precision CNC machined AL7075/T6 alloy

A direct mount Retainer ring option designed specifically for the Hope RX Crankset. Designed to be compatible with 9/10/11 and 12-speed drivetrains including SRAM T-Type and Shimano HG+. - Asymmetric tooth profile engineered for cross-compatibility and functionality with different drivetrain systems - Improved mud-shedding capability - Improved chain retention - Better performance with extreme chain angles on modern 1 x drivetrains - Tooth profile allows for more chain wear before function is compromised, extending service life - Spiderless rings have a new leg design with improved strength and stiffness - Narrow/wide tooth profile to keep the chain where it should be - Direct mount retainer ring designed specifically for our RX crankset - Optimized 45mm chainline - No need for separate spider and bolts for a lighter setup - CNC machined in 7075-T6 aluminum - Weight: 38T – 94g | 40T – 104g | 42T – 114g | 44T – 125g

The new FLT 12 SPD chainring has an updated tooth profile optimized for SRAM Flattop 12 SPD chains. Easton direct mount rings use a new narrow/wide design specifically tailored to road/cx/gravel applications. The individual tooth profile has moved from the traditional symmetrical shape to more directional specific design with the intention to create a positive chain roller engagement to help with chain retention, critical to prevent chain slip and bounce over rough terrain. Compatible, but not optimized for, 11-speed chains. Ring only. Crankarms and spindles sold separately. - EA90 SL Alloy - Optimized for 12-Speed Flattop Chains - Cinch System Compatible - Variable Tooth Width - Optimized Retention via Directional Tooth Design - Weight Complete: 442g 172.5mm 40t w/o BB - Chainline: 47mm

X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear. - Updated tooth profiles for improved wear - One-piece construction for faster, smoother, more secure shifting - More durable finish - Direct Mount - Material: Aluminum

absoluteBLACK Oval Direct Mount 1x Chainrings for CINCH greatly improve traction and climbing abilities. They are designed for Easton EC90SL cranks or Race Face cranks that utilize the CINCH system. The super-stiff design is well suited for cyclocross and gravel riding. Chainrings are crafted from CNC machined 7075 aluminum and feature an anodized finish for exceptional durability. Ovality has been optimized for each chainring size, ranging from 10.2-12.1%, with timing of 110.5-112.3° after TDC (top dead center). - Oval shape reduces stress on knees, helps to keep your legs fresh, and does not feel any different while riding - The unique, patent-pending narrow-wide tooth profile keeps the chain in place - Teeth have been 3D-machined for ultimate mud shedding and quieter operation - Provides excellent weight-to-strength ratio - 3mm Offset

The special PVD Rainbow Titanium coating process makes chainrings very durable and incredibly beautiful. NOTE: Due to the nature of the PVD process, every chainring is unique and color may vary. Not a single chainring is the same which makes your new ring completely individual - Designed to fit Shimano XTR M9100 , M9120, XT M8100, M8120, M8130, SLX M7100, M7120, M7130 and FC-MT900 cranksets - Works ONLY with CN-M9100, 8100 & 7100 chain - Oval rings help the rider to spin smoother and more efficiently - 32t is equivalent to 30t at the dead spot and 34t at the power zone - Narrow-wide tooth profile keeps the chain snug, allowing you to leave the chain guide behind - Designed in the UK, manufactured in Poland

That big ring always seems to wear out first, and is the first to take damage when you're blasting over obstacles. Shimano's SLX M7000 11-Speed Chainrings for double cranksets get you back on the trail in no time. - 34T for use with 24T inner ring - 36T for use with 36T inner ring - 38T for use with 28T inner ring

Shimano XTR M9000 11-Speed Chainrings - Chainring BCD: 64 Shimano Asymmetric - Drivetrain Speeds: 11 - Material: Aluminum - Ring Position/Type: Inner

Gates Carbon Drive CDX Front belt drive rings are crafted with 6061 aluminum and work well for high-mileage touring or rugged off-roading. - Constructed of 6061 aluminum - 11mm pitch - CDX CenterTrack belts, cogs and rings do not interchange with any part of a CDC/CDX MudPort system

- AXS enabled for easy monitoring and firmware upgrades - Fully integrated power meter into a direct mount chainring - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - Power balance measures left and right legs separately - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control - Laser-etched chainring finish is more durable - 8-bolt direct mount compatibility only to RED and Force eTap AXS cranks. - Speeds: 12 - Chainring material: Aluminum - Power Meter Type: ANT USB

The radical look and feel of SRAM's X-SYNC 2 Eagle chainring is a direct result of SRAM drivetrain engineers studying the performance and wear characteristics of thousands of X-SYNC chainrings. They subjected every size of chainring to untold environmental and mechanical tortures, abuse and neglect, in both lab and real-world settings, to come up with a chainring that would augment the Eagle drivetrain’s performance in all conditions. The longer, positive-rake tooth shape has been designed to work perfectly with the Eagle chain to increase chain retention and overall pedaling efficiency, while decreasing friction, noise and wear.

It’s undeniable that some riders’ pedaling styles benefit from oval chainrings, so SRAM has engineered the new X-SYNC 2 Oval chainrings to give them the advantage they want. They are the only oval option available with SRAM's genuine X-SYNC 2 teeth profile, so they are the only oval chainrings on the market that are 100-percent optimized for Eagle. - Can be used with Eagle 12 speed or SRAM 11 speed chains - Direct Mount Type: Direct Mount SRAM - Drivetrain Speeds: 10, 11, 12 - Material: Aluminum - Ring Position/Type: Chain Retaining Single Ring - Offset: -4 - Chainline/Hub Compatibility: 190/197 Hubs

Shimano SLX M7000 10-Speed chainrings get worn out drivetrains back in like-new condition.

Shimano Sora 9-Speed replacement chainrings gets your drivetrain operating smoothly again.

Shimano Ultegra R8000 Series Chainrings are designed for use with Shimano's 11-speed Ultegra crankset.

The SUMO III is CNC machined from thick 6061 Aluminum with a simple and super strong design. - Bore: 15/16" / 24mm - Thickness: 6.0mm - Adapters for 22mm & 19mm spindles included - Weight: 2.3-ounce

More power, better traction, less shifting. Wolf Tooth oval chainrings use our proprietary PowerTrac design that has all the benefits of oval but without the funky, uneven pedal stroke. Ride one once and you’ll wonder why you waited so long to try oval. Think of an oval chainring as two chainrings in one. A major benefit of the oval is how the shape of the chainring alters your gearing in two important phases of your pedal stroke by harnessing your body’s natural biomechanics. Here’s how it works. The area of the chainring with the larger diameter engages with the chain at the optimal point on the downstroke, which is what’s known as the Power Zone. If you were to look at a clock, the Power Zone would be between 1-5 and 7-11. Conversely, the Recovery Zone – back to the clock face, between 11-1 and 5-7 – is the weakest part of the pedal stroke, when the oval maximizes your efficiency. A 34T oval chainring behaves like a 36T chainring when you want power while behaving like a 32T chainring when you’re climbing. We’ve also engineered our oval chainrings to provide smoother, more efficient pedal rotation. This equates to better traction because of steadier torque on the rear wheel. With a Wolf Tooth oval chainring, you can harness more of your strength in the Power Zone, while having easier pedaling in the Recovery Zone. The direct mount chainrings for SRAM cranksets replace your existing spider and chainring with one clean-looking, lightweight, and stiff piece of machined billet. They are available in 3 different offsets: 6mm offset for 49mm chainline, 3mm offset for 52mm chainline, and 0mm offset for 55mm chainline and SRAM Transmission optimization. They are available in various tooth profiles to suit your drivetrain, including Drop-Stop B, which is optimized for SRAM T-Type Transmission and compatible with many other chains. Crankset and chainring compatibility questions? Check out our helpful guide here.

Featuring the proprietary mud clearing Drop-Stop tooth design, these rings are designed to fit any 104 BCD crankset. Made in Minneapolis, MN with exceptional chain retention in mind, these chainrings are best paired with a clutch-style rear derailleur. - Drop-Stop chainrings are designed for use with 1x9, 1x10, 1x11 and 1x12 drivetrains - Compatible with all 10-, 11-, and 12-speed chains, with the exception of Shimano 12-speed chains - Shimano 12-speed chains require the use of Wolf Tooth's Shimano 12-speed specific chainrings - If using a 9-speed drivetrain, use a 10-speed chain, which will provide a tighter fit for better chain retention - Use of a clutch-style rear derailleur is recommended - Made from 7075-T6 aluminum for long life

Narrow wide chainrings compatible with Race Face CINCH system cranks. Direct mounting allows an easy switch between rings and spiders. - Compatible with 9, 10, 11, and 12 speed - Narrow Wide tooth profiling ensures consistent chain retention - Lockring installed/removed with ISIS BB tool - Stiff 4mm plate thickness to transfer loads without flexing

Narrow/Wide tooth design for chain retention on 1x systems - 10 or 11 speed compatible - Mud clearing channels - CNC 7075 Swiss Alloy

absoluteBLACK Premium Oval 110 BCD Chainrings utilize absoluteBLACK's top-tier design features to greatly improve traction and speed. They are designed for 4-bolt or 5-bolt FSA cranks such as Gossamer, SL-K, and K-Force with asymmetric bolt spacing. 4- and 5-bolt cranks are identical with the exception of the one hidden bolt behind the crank arm in 5-bolt design, which is not needed. Optimized with smooth shifting in mind, premium chainrings have a unique shift ramp and recess design. Chainrings are crafted from CNC machined 7075 aluminum and feature an anodized finish for exceptional durability. - Oval shape reduces stress on knees, helps to keep your legs fresh, and does not feel any different while riding - Chainring design reduces the possibility of leg cramps and allows you to maintain a better cadence while climbing - For Gossamer and SL-K cranks, use the original FSA hardware for installation - For K-Force cranks, you will need to purchase absoluteBLACK bolt covers for installation - 3.5% ovality is ideal for road climbing

absoluteBLACK Premium Oval 110 BCD Road Chainrings utilize absoluteBLACK's top-tier design features to greatly improve traction and speed. They are designed for Shimano Dura-Ace 9100, Ultegra 8000, and 105 R7000 4-bolt cranks only. Optimized with smooth shifting in mind, premium chainrings have a 6-point ramp and recess design. Chainrings are crafted from CNC machined 7075 aluminum and feature an anodized finish for exceptional durability. - Oval shape reduces stress on knees, helps to keep your legs fresh, and does not feel any different while riding - Chainring design reduces the possibility of leg cramps and allows you to maintain a better cadence while climbing - 10, 11, and 12-speed compatible - Outer rings feature 6-point shifting ramps that work in conjunction with the tooth recesses to stabilize the chain while shifting and allow for easy and quick gear changes - Outer chainrings also features 12 down-shifting points - Use absoluteBLACK long chainring bolts to install outer ring

absoluteBLACK Premium Oval 110 BCD Chainrings utilize absoluteBLACK's top-tier design features to greatly improve traction and speed. They are designed for 4-bolt or 5-bolt FSA cranks such as Gossamer, SL-K, and K-Force with asymmetric bolt spacing. 4- and 5-bolt cranks are identical with the exception of the one hidden bolt behind the crank arm in 5-bolt design, which is not needed. Optimized with smooth shifting in mind, premium chainrings have a unique shift ramp and recess design. Chainrings are crafted from CNC machined 7075 aluminum and feature an anodized finish for exceptional durability. - Oval shape reduces stress on knees, helps to keep your legs fresh, and does not feel any different while riding - Chainring design reduces the possibility of leg cramps and allows you to maintain a better cadence while climbing - For Gossamer and SL-K cranks, use the original FSA hardware for installation - For K-Force cranks, you will need to purchase absoluteBLACK bolt covers for installation - 3.5% ovality is ideal for road climbing

absoluteBLACK Silver Series Oval 110 BCD Chainrings feature many of the same benefits as absoluteBLACK's Premium line, but with less material machined out on the outer side, allowing for easier maintenance and cleaning. They are designed for pre-2014 5-bolt cranks, such as Shimano Dura-Ace FC7900, Ultegra FC6750, Shimano 105 5750, and more. Optimized with smooth shifting in mind, these chainrings have a 6-point ramp and recess design. Chainrings are crafted from CNC machined 7075 aluminum and feature an anodized finish for exceptional durability. - Designed for your winter/training bike where weight is not an issue, but ease of cleaning is - Oval shape reduces stress on knees, helps to keep your legs fresh, and does not feel any different while riding - Chainring design reduces the possibility of leg cramps and allows you to maintain a better cadence while climbing - Not compatible with SRAM hidden bolt cranks

absoluteBLACK Premium Round 110 BCD Road Chainrings utilize absoluteBLACK's top-tier design features. They are designed for new and old Shimano 4-arm cranks, such as Dura-Ace 9100, 9000, Ultegra 8000, 6800 & 105 R7000, and more. Optimized with smooth shifting in mind, premium chainrings have a 6-point ramp and recess design. Chainrings are crafted from CNC machined 7075 aluminum and feature an anodized finish for exceptional durability. - Chainring BCD: 110 Shimano Asymmetric - Rings provide exceptional stiffness due to thicker, 5mm construction - Provides excellent weight-to-strength ratio - 10, 11, and 12-speed compatible

Origin-8's Alloy Blade Chainrings are CNC-machined out of tough, light and durable 6061-T6 aluminum and are compatible with 8- and 9-speed drivetrain components. They have an attractive and corrosion-resistant silver anodized finish.

- MTB direct mount chainrings - Narrow/Wide tooth design for chain retention on 1x systems - 10, 11, or 12 speed compatible - Forged and hard anodized AL6061-T6 alloy construction - SRAM 3-bolt interface for crank arm mounting - BCD: Direct Mount - Type: 1x - Spec: GXP - Chain Compatibility: 10/11/12s Tooth - Type: Narrow/Wide - Offset: 6mm

- 64/104mm BCD 4-bolt chainring sets for MTB, Boost, and Fat applications - Shifting ramps and stainless steel pins for smooth shifting - 10 or 11 speed compatible - Stamped AL2014-T6 alloy construction - BCD: 64/104mm 4-Bolt - Type: 2x - Tooth Type: Standard

Origin-8's Alloy Blade Chainrings are CNC-machined out of tough, light and durable 6061-T6 aluminum and are compatible with 8- and 9-speed drivetrain components. They have an attractive and corrosion-resistant silver anodized finish.

Cinch Oval rings help you put down the watts in the best part of our pedal stroke, on your 10, 11, or 12-speed drivetrains. Ovals provide enhanced traction control when compared to conventional round rings, particularly in high torque, low cadence riding scenarios. We’ve got your timing clocked to improve on that grueling climb. Or simply make your personal pedal-shuttle a little more bearable. And by simply flipping the ring, it becomes Super Boost compatible without losing the same excellent timing to help you maintain traction during the toughest part of your push - Optimized pedal stroke - 1x drivetrain variable width tooth profile stops dropped chains - Super Boost compatible - Wear-resistant 7075 Aluminium

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition. - Compatible with 4-bolt, 104/64 pattern crank arms

Shimano SLX M660 10-Speed chainrings get worn out drivetrains back in like-new condition.

Shimano XT CRM80 1x11 Chainrings - Hollow gear construction for optimized rigidity, weight, and rigidity - Durable teeth using plated steel construction supported by a carbon composite (CFRP) carrier body - Dyna-Sys11 HG-X11 11-speed chain compatible - Chainring BCD: 96 Shimano Asymmetric - Color: Black - Drivetrain Speeds: 11 - Material: Steel/Carbon - Ring Position/Type: Chain Retaining Single Ring - Tooth Count: 30

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition.

Deore M6000 series 10-speed chainrings provide smooth and reliable shifting, ideal for off-road riding conditions. - Shimano HG-X technology - Compatible with 4-arm crank design

Premium Campagnolo compatible Oval chainrings designed for Super Record, Record and Chorus 4-bolt 145/112bcd cranks. They work perfectly with 11 & 12spd drivetrains thanks to our ingenious design. Incredibly stiff and light. Super-fast shifting thanks to our patented shifting ramp design. Same brilliant oval design like in the rest of the collection. Use original bolts. It is the most Premium oval chainring on the market with scientifically proven performance gains. ADVANTAGES OF OUR SPECIAL CAMPAGNOLO COMPATIBLE OVAL CHAINRINGS: - Finest design to provide excellent weight-to-strength ratio - One of a kind special oval shape (Patent Pending) - Superb quality and great look. - You will ride faster using ovals. - You will not "feel" the oval shape at all - Reduces stress on knees - We mastered our oval chainrings to perfection, so you can get best possible advantage from the oval/elliptical shape. - Size (Mass +/-1g): 53T (90g), 39T—(42g) - Compatibility: Campagnolo Super Record, Record, Chorus 4-bolt 145/112bcd for 11 and 12spd versions. - CNC machined 7075 Txxx Aluminum. Long-lasting construction - Ovality: Optimized to each size separately. 39T- 10.4%, 53T—10-11.2% - Timing of 108 -110.5° after TDC (top dead center)—ideal for road climbing

- Asymmetric four arm shape for greater stiffness in the power zones of the pedal stroke - Compatible with 9/10/11 speed chains, mounts using a common Park BBT-22 tool

FSA's MTB Pro chainrings deliver flawless shifting for mountain drivetrains. - Precision CNC machined AL7075/T6 alloy - Shifting ramps and stainless pins for improved performance - D-10 chainrings are double 10 speed Sram/Shimano compatible, but are only guaranteed perfect fitment on FSA MTB cranksets

Origin-8's Alloy Classic Chainrings are CNC-machined in the USA out of tough, light and durable 6061-T6 aluminum and are compatible with road, fixie and track drivetrain components. They have an attractive and corrosion-resistant silver anodized finish.

Origin-8's Alloy Ramped Chainrings are CNC-machined in the USA out of tough, light and durable 6061-T6 aluminum and are compatible with 8-, 9- and 10-speed drivetrain components. They have ramped teeth and are pinned for superior shifting and durability, and feature an attractive and corrosion-resistant black anodized finish.

This direct mount chainring coincides perfectly with the Comet Modular Crank. The megatooth design allows you to put all of your power through without worrying about dropping your chain. - Long tooth profile enhances chain retention - Thick-Thin tooth design for maximum chain engagement - Laser-etched logos