When you need the absolute best from your training data, the pro-proven accuracy and reliability of the RED AXS power meter is the way to go. Integrated into the chainring itself, it’s light, stiff and aero, accurate to +/-1.5% even as weather conditions change, and retains chains even when you hit rough stuff.

Features

- AXS enabled for easy monitoring and firmware upgrades
- Single-ring drivetrain simplifies functionality
- Fully integrated power meter into a direct mount aero chainring
- Power readings are accurate within +/-1.5% and aren’t affected by climate conditions during a ride
- X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control
- Available in 48T, 50T, 52T, 54T, 56T, 58T, 60T, 64T, and 68T

- Integrated power meter and chainring combo
- Accurate to +/-1.5% and unaffected by temperature changes
- Integrated rings are incredibly long-lasting
- Combine with 8 bolt compatible crankarms
- SRAM Model ID: PM-AXS-KITR-E1

- Lightweight Aero 1x chainrings for road and gravel
- Shark Fin tooth shaping reduces chain noise on 1x mullet builds with MTB cassettes
- Machined in San Diego, CA, from 7075 aluminum
- SRAM 8-bolt Direct Mount fitment
- Works with Flat Top and Eagle SRAM as well as Shimano 12 speed chains
- Specifically designed to work with SRAM DUB bottom bracket bups
- Please note that the Aero design may not work with T47 bottom brackets

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

Shimano Dura-Ace FC-R9200 chainrings are constructed with high-quality aluminum and are compatible with FC-R9200 and FC-9200-P 2x 12-speed cranksets. - Asymmetric 110 BCD - Compatible with HG 12-speed chains - Aluminum with anodized finish provides durability and light weight - Hollowglide technology provides high rigidity and cuts down on weight while maintaining strength - Offers better power transfer and quicker, more precise front shifting - 50t outer chainring is for use with 34t inner chainring - 54t outer chainring is for use with 40t inner chainring

We wanted light weight, stiffness, and durability, and we got all three. The Force 2x chainring kit is a single integrated unit so no effort is wasted, transferring all your power to the pedals. Features - Crisp and accurate front shifts - One-piece construction for faster, smoother, more secure shifting - X-Range gearing technology gives you more range and a smoother gear progression, so you’re always in the right gear. - Available in 46/33T, 48/35T, or 50/37T

Designed as part of the Force AXS groupset, the Thread Mount 2x chainrings are part of an innovative system to minimize weight while maximizing stiffness and power meter accuracy. Quickly swap ring sizes with an easy to use tool. Features - Thread Mount design is light, stiff, and accurate - Available in 46/33, 48/35, and 50/37 chainring combos - Compatible with all road Flattop chains - SRAM Thread Mount Chainring Removal Tool required for installation

Our light, stiff, and durable direct mount chainrings let you pick the exact gearing you want and quickly swap sizes. Our X-SYNC technology keeps the chain where you need it to be, too. Features - X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control - Laser-etched chainring finish is more durable - X-Range gearing technology gives you more range and a smoother gear progression, so you’re always in the right gear - Improved aerodynamics for time trial and triathlon

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

- Titanium provides at least 3 times the durability and longevity of aluminum rings. This results in more time riding, less time replacing parts, and less waste
- Machined in San Diego, CA
- SRAM 8-bolt Direct Mount fitment with 3mm offset for 55mm chainlines

Replacement chainrings in 110mm and 130mm BCD for SRAM 11-speed Yaw speed road cranks. Replace worn out rings or swap to change gearing for specific uses.

Top quality design and materials in sizes to fit modern road and 'cross bikes. - 7000 series aluminum provides strength and durability - 52t for use with 36 or 38t - 50t for use with 34t

- X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear - Specially designed tooth profiles for improved wear - More durable finish - Bolt Circle Diameter (BCD): 107 BCD - Speeds: 12 - Material: Aluminum

Replace worn out chainrings or change out gearing with SRAM's Force X-Glide Chainring. This solid ring is crafted from aluminum using SRAM's X-Glide tooth profiles for quick, responsive shifting. If you have a SRAM Force 22 compact crank (50/34), this is the ring for you.

Designed for use with our new RED XPLR AXS power meter, these replacement rings are purpose-made for use with a Thread Mount spider design. This chainring mount system allows us to minimize weight, maximize stiffness and accuracy, and retain the ability to swap ring sizes. Available in five sizes to tailor your ride to your needs. FEATURES - Thread Mount design is light, stiff, and accurate - Available in 38T, 40T, 42T, 44T, and 46T - Compatible with all road Flattop chains - SRAM Thread Mount Chainring Removal Tool required for installation

Intense study of chain and chainring wear patterns led to the radical tooth profile that lasts longer, runs quieter and further improves chain retention. Oval ring shape for riders that want to adjust the power profile of their pedal stroke. - The only oval rings with X-Sync 2 tooth design - Direct Mount Type: Direct Mount SRAM - Drivetrain Speeds: 10, 11, 12 - Material: Aluminum - Ring Position/Type: Chain Retaining Single Ring - Round or Oval: Oval - Chainline/Hub Compatibility: 141/148 Boost Hubs

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. - Direct Mount Type: Direct Mount SRAM - Drivetrain Speeds: 10, 11, 12 - Material: Aluminum - Ring Position/Type: Chain Retaining Single Ring - Chainline/Hub Compatibility: 135/142 MTB Hubs, 150/157 DH Hubs, 170/177 Hubs

Stiff, strong chainrings form the backbone of our best front shifting ever. Rival 2x chainrings are a light, elegant one-piece construction so none of your effort goes to waste. A 13-tooth delta on all chainring pairs ensures precise shifting for any setup, as well as a less dramatic change in cadence during front shifts. Features - Crisp and accurate front shifts - One-piece construction for faster, smoother, more secure shifting - X-Range gearing technology gives you more range and a smoother gear progression, so you’re always in the right gear. - Available in 46/33T and 48/35T chainring combos

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)

- Better chain engagement for greater chain retention - Special gear teeth profile designed for MTB riding usage - Smoother driving even over bumpy terrain - For XTR FC-M9100-1, M9120-1 cranks

Pair Shimano's 1x11 XTR chainring with an XTR rear derailleur and experience a simple, light drivetrain with exceptional chain management. A range of chainring sizes lets you customize your drivetrain for any terrain.

Rugged durability comes naturally to the Eagle T-Type direct mount chainring.Rugged durability comes naturally to the Eagle T-Type direct mount chainring. Finished with a distinct, dual-spoke design your shifting will never be compromised. Available in three different tooth counts, there is ample room to refine and customize your bike's feel.
Features
- 8 Bolt direct mount
- 30-38T range
and +3mm offset variants
- Compatible with T-Type chains

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

SRAM's X-Sync Road Chainrings are designed for provide maximum control when used with AXS road cranksets. - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control - Laser-etched chainring finish is more durable - X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear - Can be installed with a single tool, making gearing changes a breeze

Make SRAM 1x even better with the simplicity of the SRAM X-SYNC Direct Mount chainring. Engineered in Germany, the new Direct Mount rings brings lighter weight and greater simplicity to XX1, X01, X1-1400, and GX-1400 cranksets. SRAM’s Direct Mount rings give riders the perfect opportunity for a serious upgrade. - Fully CNC AL rings - X-SYNC technology - Lighter weight than spider version (~25-50g depending on size) - Offset: 0mm (BB30), 6mm (GXP)

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

Designed specifically for use e-mtb drive systems, SRAM’s XX T-Type direct-mount rings offer light weight with optimal retention performance needed for e-mtb. - Steel and Aluminum construction

Full Speed Ahead chainrings have powered multiple World, Tour de France, and Olympic champions, and will exceed your expectations. - Chainring can be used with FSA SL-K 90 BCD inner chainrings - Precision CNC-machined AL7075/T6 - Shifting ramps and stainless steel pins on outer rings - Laser-etched logo - Compatible with FSA Modular crankset (Gossamer / Energy / SL-K / K-FORCE) - Drivetrain Compatibility: Shimano 10/11-speed, SRAM 10/11-speed, FSA 11-speed, Campy 10-speed

A tight and consistent 13-tooth gap between chainrings delivers accurate and dependable shifting and is the core of our X-Range gearing. Our smaller chainrings paired with wide-range, 10t-start cassettes provide more efficiency and more time in the big ring. It's modern gearing for today's riders. - Crisp and accurate front shifts - Durable finish - X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear

SRAM X-Sync Road Direct Mount Chainrings for Rival drivetrains feature a wide-tooth, narrow-tooth design to provide maximum chain control. - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control - Laser-etched chainring finish is more durable - X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear Specifications: - Round or Oval: Round - Direct Mount Type: Direct Mount SRAM - Tooth Count: 38 - Material: Aluminum - Ring Position/Type: Chain Retaining Single Ring - Drivetrain Speeds: 12

Original equipment on SRAM and Truvativ cranks, these chainrings also work well with other drivetrains. - Medium Overshift Pin - 104mm BCD - Use with 22T

- Megatooth thick thin tooth design for Shimano 12sp mountain chain engagement - Direct mount FSA modular crank model-specific rings

- Megatooth thick thin tooth design for Shimano 12sp mountain chain engagement - Direct mount FSA modular crank model-specific rings - Precision CNC machined AL7075/T6 - Long tooth profile enhances chain retention - BCD: Direct Mount - Crankset Compatibility: KFX - SH12: Compatible with Shimano 12s chain

Mud and moving parts are enemies in the sport of cyclocross. That's why SRAM decided they were going to simplify things. Remove the front derailleur, increase the range of the cassette, make dropped chains a thing of the past, and you've got a cross drivetrain worthy of hammering. SRAM's CX1 X-Sync Chain Ring is an integral part of that system. It mates to 110 BCD cranks and features a wide-narrow-wide tooth profile to securely hold the chain through the roughest terrain. It's also specially designed with mud clearing in mind to keep your rig light and fast. A variety of sizes ranging from the spin-to-win 38T to the flat-out 46T let you dial in your rig for your strengths or course.

Origin8's Thruster 110mm BCD 5-bolt chainring sets are great for road, 'cross, and gravel applications. Shifting ramps and stainless steel pins deliver smooth shifting, and these rings are 10 or 11 speed compatible. - Stamped AL2014-T6 alloy construction - BCD: 110mm 5-Bolt - Type: 2x - Chain Compatibility: 10/11s - Tooth Type: Standard

Original equipment on SRAM and Truvativ cranks, these chainrings also work well with other drivetrains.

- Compatible with T-type chains
- Machined in San Diego, CA, from 7075 aluminum
- SRAM 8-bolt Direct Mount fitment with 3mm offset for 55mm chainlines
- Weight: 58g

- Now compatible with T-type chains
- Machined in San Diego, CA, from 7075 aluminum
- SRAM 3-bolt Direct Mount fitment with 3mm offset for Boost chainlines
- Works with both SRAM and Shimano 12 speed chains
- Weight: 58g

- 7075-T6 aluminum ring for Easton Cinch system Road/CX/Gravel cranks - Asymmetric four arm shape for greater stiffness in the power zones of the pedal stroke - Narrow-wide tooth profiling prevents chaindrop with a guide or clutch derailleur - Compatible with 9/10/11 speed chains, mounts using a common Park BBT-22 tool - 47mm chainline with the Easton 129mm spindle - 38T (80g), 40T (91g), 42T (98g), 44T (105g), 46T (112g), 48T (123g), 50T (137g)

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

Narrow/Wide tooth design for chain retention on 1x systems - Oval shape for increased power and efficiency - 10 or 11 speed compatible - Mud clearing channels - CNC 7075 Swiss Alloy - 4 bolt

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

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

- BCD: 110 - Chainring Bolts: 5 - Chainring Comp: Double - Teeth: 50 - Primary Color: Black - Material: Aluminum - Position: Outer - Speed: 11

SRAM's X-Sync 11-speed chainring features tall teeth with an alternating tooth profile to hold the chain amazingly well and still provide space for mud to clear. - Drivetrain Speeds: 10, 11 - Material: Aluminum - Ring Position/Type: Chain Retaining Single Ring

SRAM X-SYNC 2 1x chainrings provide a high level of performance and durability. The aggressive teeth design provides better chain retention for a smoother, more efficient pedal feel. With a focus on long wear-life, the design reduces friction and the accumulation of mud, grit, and grime. - The sharp and narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain - X-SYNC 2 chainring design increases chain retention, improves durability, and reduces friction and noise - Designed to be used with Eagle chain - 104mm BCD

Get back on your bike with these replacement chainrings.

Features
- Compatible with Bosch Gen 4
- With spider and bash guard

These chainrings are for Shimano GRX cranks. They feature our patented Drop-Stop® design for the best wear life, chain retention, and mud clearance. Drop-Stop ST is specifically for the Shimano 12-speed Hyperglide+ chain, which is used by GRX 12-speed. Drop Stop-B works with all other 9, 10, 11, and 12-spd chains, including SRAM Flattop. Compatibility: - Shimano GRX cranksets including RX600 and RX810 - Drop-Stop ST is designed for Shimano 12-speed Hyperglide+ chains - Drop-Stop B tooth profile is compatible with SRAM Flattop chain - Wolf Tooth’s patented Drop-Stop wide/narrow tooth profile provides the ultimate chain retention and mud-shedding ability - Use Drop-Stop B for all SRAM Eagle, SRAM Road and Transmission (T-Type) Flattop chains, 9, 10, and 11spd chains or 12spd KMC, Connex, Wippermann, Campagnolo. DROP-STOP B Compatible 9, 10, 11, and 12spd SRAM Eagle, 12spd SRAM Transmission (T-type) Flattop, 12spd Campy, 12spd KMC Not compatible with 12spd Shimano HG+ chains

Wolf Tooth was first to market with cyclocross 1x specific chainrings because we saw cyclocross as the perfect use for our Drop-Stop® technology. Since their release, the uses for these rings has expanded beyond cyclocross to commuting, gravel riding, and even full on-road applications with the giant 52t rings. - Fits 130 BCD 5 arm cranksets - Drop-Stop technology. On Wolf Tooth’s patented wide/narrow chainring, the wide side of the tooth has maximum contact on the drive side which spreads the load and improves chainring life. The narrow side allows clearance for mud and debris which reduces friction. - Alternating wide/narrow tooth pattern prevents chain derailment Compatibility: - These rings are for use with 130 BCD 5-arm cranksets. - Do NOT fit on the cranksets for Shimano DA 9000 / Ultegra 6800 - Not compatible with Campy CX10/11. - SRAM Exogram cranksets with inset nut must use stock fifth bolt + spacer(s). The Force CX1 bolt features a fifth bolt with 1x specific shoulder. This kit can be found online. - 38T important note: The chain may contact the spider arm slightly when using the 38T chainring (see last photo in the product images). We recommend filing a small chamfer on the spider arm but you can also just install it and let the chain do the work. This is only an issue with the 38T as the 130 BCD was designed for 39T smallest ring. - Stock 2x bolts will not work. You will need bolts like our 6mm bolts which are optimized for single ring mounting. Tech Specs: - Weight: 38t/52g | 40t/60g | 42t/62g | 44t/79g | 52t/132g - Material: 7075-T6 aluminum - Made in the USA - This 1x chainring and can be mounted in either the inner or outer ring position of a double crankset but can not be used in a 2x setup. - Chainline - The most common mounting is in the outer ring position because of chainstay clearance. The ring centerline is ~2mm from the ring's mounting face so they usually sit about 2mm closer to the frame than the stock big ring (depends on the stock ring) Use Drop-Stop B for all SRAM Eagle, SRAM Road and Transmission (T-Type) Flattop chains, 9, 10, and 11spd chains or 12spd KMC, Connex, Wippermann, Campagnolo. Recommendations - If you plan to ride in very muddy conditions, we recommend a chainguide or chainkeeper in addition to a clutch-type rear derailleur. Without these precautions, you may experience chaindrops and/or chainsuck.

Wolf Tooth Direct Mount Chainrings for SRAM 8-bolt Cranks replace your existing spider and chainring with one clean looking, lightweight, and stiff piece of machined billet. They feature our patented Drop-Stop design for the best wear life, chain retention, and mud clearance. Drop-Stop B is optimized for SRAM Eagle and Flattop chains.
Drop-Stop B tooth profile is compatible with all 9, 10, and 11-speed chains; 12-speed SRAM Eagle; 12-speed SRAM Transmission (T-type) Flattop; 12 and 13-speed SRAM Road; 12-speed Campy. Not compatible with 12-speed Shimano HG+ chains

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

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

Original equipment on SRAM and Truvativ cranks, they also work well with other drive trains. - Supplied in TruVativ packaging - Bolt holes are threaded

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

Wolf Tooth was first to market with cyclocross 1x specific chainrings because we saw cyclocross as the perfect use for our patent pending Drop-Stop® technology. These beautifully machined 110 BCD asymmetric 4-bolt chainrings are optimized for your 1x Shimano CX / road / gravel drivetrain whether you run Dura Ace 9000, Ultegra 6800, 105 5800, or Tiagra 4700. They are also offset for the ideal 1x chainline. - Fits 110 BCD Asymmetric 4-bolt Shimano cranks - Drop-Stop technology. On Wolf Tooth's patented wide/narrow chainring, the wide side of the tooth has maximum contact on the drive side which spreads the load and improves chainring life. The narrow side allows clearance for mud and debris which reduces friction. - Alternating wide/narrow tooth pattern prevents chain derailment Compatibility: - Fits 110 BCD asymmetric 4-bolt cranks - All sizes compatible with Dura Ace 9000, Ultegra 6800, 105 5800, RS510, Tiagra 4700 or 4703, Sora R3000 or R3030, and Claris R2000 or R2030 cranks. - 38-50t are compatible with 105 R7000, Ultegra R8000, and Dura-Ace R9100. The 36t chainring is NOT compatible with these cranks. - NOT compatible with Dura-Ace R9200, Ultegra R8100, and 105 R7100 Cranks - Size 42t and larger will work with the Dura Ace 9100 power meter - Mounts in the big ring position of the cranks but is offset inward for perfect chainline. - The stock 2x bolts will not work. You will need our 6mm bolts which are optimized for single ring mounting. - If using a 9-speed drivetrain use a 10-speed chain. It fits tighter for better chain retention - Chainline 47.5mm - Use Drop-Stop B for all SRAM Eagle, SRAM Road and Transmission (T-Type) Flattop chains, 9, 10, and 11spd chains or 12spd KMC, Connex, Wippermann, Campagnolo. DROP-STOP B Compatible 9, 10, 11, and 12spd SRAM Eagle, 12spd SRAM Transmission (T-type) Flattop, 12spd Campy, 12spd KMC Not compatible with 12spd Shimano HG+ chains

- 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

12 Good Reasons If you're looking for a bomber new chainring that can run with your Shimano 12 speed drivetrain, then look no further. This direct mount ring has the versatility of RF CINCH integration and the stiffness to turn all your "push" into straight-up "go". Built to Last Created from 4mm-thick 7075-T6 alloy plate for big-time stiffness and strength. Its NW tooth profile is Shimano 12-speed specific and provides secure chain retention All-Round Performer The Race Face CINCH interface makes this direct mount chainring fast and easy to swap for different sizes to customize your Shimano 12-speed drivetrain. - Compatible with Cinch Direct Mount Cranks - 7075 Aluminum - Direct Mount

absoluteBLACK Oval 94 BCD 1x Chainrings greatly improve traction and climbing abilities. They are designed for SRAM X01, X1, GX, NX, and GX Eagle cranks. 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 10.2-14.4%, with timing of 110.5-116.3° 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 - For 48mm chainline - Rings have built-in threads for ease of mounting and reduction in weight - Chainring bolts are included