Chainrings

More power? Check. Better traction? Definitely. Less shifting? Yup. Funky uneven pedal stroke? Not with Wolf Tooth’s PowerTrac Elliptical™ (PTE) chainrings. Our proprietary design means a slightly less ovalized ring (10%) with less aggressive timing (112°) than competitors’ versions; any change to your pedal stroke is unnoticeable for most riders, but they still provide the POWER and TRACTION benefits inherent to oval chainrings. It’s like having two chainrings in one! With PowerTrac Elliptical rings, the larger-diameter section of the ring engages with the chain at the optimal point on the downstroke, or “Power Zone,” – between 1-5 and 7-11 on a clock face – to take advantage of your body’s natural biomechanical POWER: For example, during this section, a PTE 34t ring is equivalent to a 36t round ring. Similarly in the “Recovery Zone” (11-1 and 5-7), the smaller section on the PTE ring engages, maximizing EFFICIENCY in the weakest part of the pedal stroke; here the PTE 34t ring is equivalent to a 32t round ring. Additionally, the above provides a smoother, more efficient pedal rotation, which means better TRACTION. Steadier torque on the rear wheel means less spinning out in the “Power Zone,” while pedaling is easier during the “Recovery Zone,” so you maintain momentum. 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 Now available in ultra-durable stainless steel. The CAMO chainring system was created by the Wolf Tooth engineers for Chainline And Material Optimization on direct-mount style chainrings. The key advantages include: Perfect Chainline - for wear and shifting precision Optimal material usage - for weight, stiffness, and wear Price - for less expensive replacement chainrings Swapping - very fast chainring change out with 5 small bolts and no nuts. Compatibility: This chainring is for Wolf Tooth CAMO spiders only. It is NOT compatible with any other chainring mountings.

CAMO is all about choice - these stainless rings are made from 416 Stainless Steel for durability, strength and performance. Useable only with CAMO spiders. - Requires the use of a CAMO spider - Features Wolf Tooth's Drop-Stop tooth design for maximum chain retention - 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 - Hardened and electropolished 416 stainless steel is lasts 5x-10x longer than aluminum

More power? Check. Better traction? Definitely. Less shifting? Yup. Funky uneven pedal stroke? Not with Wolf Tooth’s PowerTrac Elliptical™ (PTE) chainrings. Our proprietary design means a slightly less ovalized ring (10%) with less aggressive timing (112°) than competitors’ versions; any change to your pedal stroke is unnoticeable for most riders, but they still provide the POWER and TRACTION benefits inherent to oval chainrings. It’s like having two chainrings in one! With PowerTrac Elliptical rings, the larger-diameter section of the ring engages with the chain at the optimal point on the downstroke, or “Power Zone,” – between 1-5 and 7-11 on a clock face – to take advantage of your body’s natural biomechanical POWER: For example, during this section, a PTE 34t ring is equivalent to a 36t round ring. Similarly in the “Recovery Zone” (11-1 and 5-7), the smaller section on the PTE ring engages, maximizing EFFICIENCY in the weakest part of the pedal stroke; here the PTE 34t ring is equivalent to a 32t round ring. Additionally, the above provides a smoother, more efficient pedal rotation, which means better TRACTION. Steadier torque on the rear wheel means less spinning out in the “Power Zone,” while pedaling is easier during the “Recovery Zone,” so you maintain momentum.

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

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

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

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

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

30t inner ring for road triples

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

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

Shimano 105 5700 10-Speed chainrings are a quality, reliable replacement option for worn out chainrings on standard double cranksets.

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

64BCD chainring for MTB cranksets

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition. - For use with 38t AM-type outer ring

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

Narrow wide chainrings compatible with Race Face CINCH system cranks. Direct mounting allows an easy switch between rings. - 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

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

The SRAM X-Sync Steel 1x chainrings are the perfect replacement ring for the cost conscious with added durability of steel. The same SRAM X-Sync technology at a price well below competitors’ imitation “narrow wide” rings. Best performing chainrings at the best price. - Compatibility: Compatible with all SRAM 1x cranks, DM 28-tooth ring is not compatible with 30mm cranks that require a 0mm offset ring

- Trushift chainrings feature shift ramps and pins - Drivetrain compatibility: 8, 9, 10, 11 - 104mm BCD

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

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

Shimano SLX M660 9-Speed chainrings get your drivetrain back to optimal operation.

Original equipment on SRAM and Truvativ cranks, they also work well with other drivetrains. - 7000 series aluminum provides strength and durability - 130mm BCD

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

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

Shimano 105 5703 10-Speed chainrings are a quality, reliable replacement option for worn out chainrings on triple cranksets.

Replace worn out chainrings or change out gearing with SRAM's RED X-Glide Chainrings. These solid rings are crafted from aluminum using SRAM's X-Glide tooth profiles for quick, responsive shifting. If you have a SRAM RED 10-speed Exogram* standard crank, these are the rings for you. RED Exogram cranks have a hidden 5th bolt behind the crank arm

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

- CNC machined 6061-T6 alloy - Fits 1-piece and 3-piece BMX cranks - 23.8mm hole for 1-piece cranks with shims for 19/22mm 3-piece cranks included - Hard anodized coating - Unique, 1/8" quiet drive technology - Mount Compatibility: 1-piece/3-piece - Chain Compatibility: 1/2" x 1/8"

Shimano XT M770 10-Speed Chainring - XT FC-M770 and FC-M780 10-Speed cranks use the same middle chainring - Chainring BCD: 104 - Color: Black/Silver - Drivetrain Speeds: 10 - Material: Steel/Carbon - Ring Position/Type: Middle - Tooth Count: 32

RaceFace Narrow Wide Chainrings feature tooth profiling for chain retention and a blend of weight and durability suitable for XC, DH, and everything in-between. - 7075-T6 aluminum, aerospace grade strength - Compatible with 9, 10, 11 and 12 speed - Stiff 4mm plate thickness and I-beam construction transfer loads without flexing - Reversible laser etched graphics - Non-threaded bolt holes

Shimano XT M8000 11-Speed Chainrings - Chainring BCD: 64 Shimano Asymmetric - Color: Silver - Drivetrain Speeds: 11 - Material: Aluminum - Ring Position/Type: Inner

The CAMO chainring system was created by the Wolf Tooth engineers for Chainline And Material Optimization on direct mount style Chainrings. Wolf Tooth’s patented Drop-Stop® wide/narrow tooth profile for the ultimate chain retention and mud shedding ability

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 Shimano 4-bolt cranks, such as Dura-Ace 9000, Ultegra 6800, 105 5800, and others. 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

Replacement chainring for road triples - BCD: 130 - Chainring Bolts: 5 - Chainring Comp: Triple - Teeth: 50 - Primary Color: Black - Material: 7075-T6 Aluminum - Position: Outer - Speed: 9-10 - Narrow-Wide Design: No

Requires Hyperglide Compatible Chain!

The radical new 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. 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. - Can be used with Eagle 12 speed or SRAM 11 speed chains - Direct mount rings with 3mm offset fit Boost geometry Eagle cranks; direct mount rings with 6mm offset fit traditional geometry - Eagle cranks and GXP spindle XX1, X01, X0, X1 and X9 cranks

- Precision CNC-machined AL7075/T6 - Shifting ramps and stainless steel pins on outer rings - Laser-etched logo - Crankset Compatibility: Gossamer ABS 2019

Eagle Technology creates the smoothest, quietest, longest-lasting, and most efficient drivetrains we've ever made. The radical new look and feel of our 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 the new Eagle chain to increase chain retention and overall pedaling efficiency, while decreasing friction, noise, and wear. - X-SYNC 2 chainring design increases chain retention, wear life, and reduces friction and noise. - Designed to be used with Eagle chain - Boost 3mm offset

Eagle Technology creates the smoothest, quietest, longest-lasting, and most efficient drivetrains we've ever made. The radical new look and feel of our 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 the new Eagle chain to increase chain retention and overall pedaling efficiency, while decreasing friction, noise, and wear. - X-SYNC 2 chainring design increases chain retention, wear life, and reduces friction and noise. - Designed to be used with Eagle chain - Non-Boost 6mm offset

- X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear - New tooth profiles for improved wear - More durable finish - 94mm BCD

absoluteBLACK Premium Oval 110 BCD Road Chainrings utilize absoluteBLACK's top-tier design features to greatly improve traction and speed. They are designed specifically for SRAM cranks that have 1 hidden chainring bolt behind the crank arm, such as RED, RED eTap, RED 22, Force 1, Force 22, Rival, Rival 1, 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. - 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 - If only switching the inner chainring to oval, use all original crank bolts - Ovality is optimized for road climbing

• CNC machined from 7075-T6, one of the strongest alloys available today • Outer rings are made from 4mm thick material & inner ring from 5mm thick material for unsurpassed durability • Rings feature our patented S.H.I.F.T. technology, featuring hard-wearing steel S.H.I.F.T. chips for dual action up-shifts

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

Dimension Multi Speed Chainrings. - CNC-machined AL-7075 - Has ramps and pins to aid in shifting (not on 74mm BCD inner chainring) - Same BCD as Surly Long Haul Trucker, Cross-Check, and Troll complete bikes (74mm & 110mm)

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, they also work well with other drive trains. - 7000 series aluminum provides strength and durability

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 is a 96mm BCD chainring for a 1X chainring for XTR M9000 crankset with the proven chain retention of our Drop-Stop® chainring. They fit only the Shimano XTR M9000 and M9020 cranksets (race and trail respectively). They have an asymmetrical 96 mm BCD with built-in threaded standoffs to provide the ideal 1X chainline. - Fits 96 BCD XTR M9000 and M9020 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 fit on the Shimano XTR M9000 and M9020 1x or 2x cranksets - Use only the stock Shimano XTR chainring bolts (M7x.75) - You will not use the stock bolt caps when mounting this ring. The stock bolts will thread into the chainring's standoffs from the outside of the crankset - For 1x9, 1x10, 1x11 and 1x12 drivetrains (including SRAM Eagle) If using a 9-speed drivetrain use a 10-speed chain (shifts and works well on a 9-speed drivetrain and fits the ring tighter for better chain retention) - Chainline - 49 mm for 30-34T and 50 mm for 36T. Provides a great chainline on most boost bikes - Available in multiple 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 A for all 9, 10, and 11spd chains or 12spd SRAM Eagle, KMC, Connex or Wippermann chains. Drop-Stop B is optimized for SRAM 12 spd Transmission (T-type) and Road Flattop chains but is compatible with all chains that work with Drop-Stop A. DROP-STOP A - Wolf Tooth Drop-Stop A is the original patented wide/narrow chainring compatible with multiple drivetrain brands including 9, 10, 11, and 12spd SRAM Eagle, KMC, Wippermann, etc. - NOT compatible with 12spd SRAM Transmission (T-Type) Flattop, 12spd Shimano HG+, or 12spd Campy DROP-STOP ST - Compatible with 12spd Shimano Hyperglide+ chain and 12spd KMC chain only - Symmetric Trapezoidal (ST) tooth shape is optimized for Shimano HG+ chain 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. Tech Specs: - Weight: 30/41g | 32t/50g | 34t/59g | 36t/69g - Material: 7075-T6 aluminum - Made in the USA

Looking for a 1X chainring for your new Shimano XT, SLX or Deore crankset with the proven chain retention of our Drop-Stop® chainrings? Wolf Tooth has what you need in the form of a beautifully machined asymmetrical 96 mm BCD that provides the ideal 1X chainline of 49mm. Note - The 28T and 26T sizes will mount to the inner 64 BCD mounting position on these cranksets. Compatibility: - These rings fit on the Shimano XT M8000, SLX M7000, Deore M6000, or FC M5100 1x or 2x cranksets - Not compatible with Deore triple (3x) cranksets - If using a 9-speed drivetrain use a 10-speed chain (shifts and works well on a 9-speed drivetrain and fits the ring tighter for better chain retention). - Provide a great chainline on most Boost bikes. See this explanation for details. - Drop-Stop A models will reduce the chainline (inward towards the frame) from the Shimano specified chainline for the crankset: 26T-28T = -3mm, 30T-34T = -2mm, and 36T-38T = -1mm - Drop-Stop ST models will have the same chainline as the Shimano specified chainline - 10mm bolts are optimized for mounting this ring - Available in multiple 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 A for all 9, 10, and 11spd chains or 12spd SRAM Eagle, KMC, Connex or Wippermann chains. Drop-Stop B is optimized for SRAM 12 spd Transmission (T-type) and Road Flattop chains but is compatible with all chains that work with Drop-Stop A. DROP-STOP A - Wolf Tooth Drop-Stop A is the original patented wide/narrow chainring compatible with multiple drivetrain brands including 9, 10, 11, and 12spd SRAM Eagle, KMC, Wippermann, etc. - NOT compatible with 12spd SRAM Transmission (T-Type) Flattop, 12spd Shimano HG+, or 12spd Campy DROP-STOP ST - Compatible with 12spd Shimano Hyperglide+ chain and 12spd KMC chain only - Symmetric Trapezoidal (ST) tooth shape is optimized for Shimano HG+ chain 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. Tech Specs: - Weight: 26t/42g | 28t/50g | 30t/41g | 32t/50g | 34t/59g | 36t/69g - Material: 7075-T6 aluminum - Made in the USA

Looking for a 1X chainring for your Shimano compact triple crankset - models M782, M672, M622, or M612 – with the proven chain retention of our Drop-Stop® chainrings? Wolf Tooth has what you need in this beautifully machined chainring with threaded standoffs that proved and ideal chainline. Fits any 96 BCDShimano Symmetric 4-bolt crankset 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

absoluteBLACK Oval Direct Mount 1x Chainrings for CINCH greatly improve traction and climbing abilities. They are designed for Race Face cranks that utilize the CINCH system. 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). - 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 is designed for bikes with Boost spacing and fat bikes (when reversed)

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

absoluteBLACK Premium Sub-Compact 110 BCD Oval Chainrings are designed to improve your climbing and cadence. They are compatible with all Shimano 110 BCD 4-bolt cranks. Chainrings are crafted from CNC machined 7075 aluminum and feature an anodized finish for exceptional durability. - Sub-Compact chainrings only work in predefined size combinations: 46/30 or 48/32 - Mounting bolts are included with the small ring - 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 - Use Shimano Dura-Ace 11-speed chain or SRAM Eagle 12-speed chain for proper clearance of mounting tabs - Not compatible with SRAM Yaw front derailleurs - 10, 11, and 12-speed compatible - 9% ovality is ideal for climbing

Lighter, stronger, and better looking than our original Guiderings; the Guidering SL is intended for use on TRS, LG1, and legacy e*thirteen cranks. The Guidering SL is -8mm offset. This offset will achieve both boost (52mm) and non-boost (49mm) spacing on e*thirteen cranks that feature adjustable chainline (2019 and newer TRS & LG1). On legacy and XCX cranks the Guidering SL will achieve a 49mm non-boost chainline. - Direct Mount chainring for TRS and LG1 cranks - Updated M3 narrow-wide tooth profile eliminates chain noise, and decreases overall system wear while retaining chain - 10/11/12 speed. Compatible with both Shimano and SRAM 12-speed drivetrains - Allows both Boost 148mm and non-boost 142mm chainline on adjustable TRS and LG1 cranks SL Chainrings are not compatible with Helix cranks. Helix cranks require Helix rings.

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

Direct Mount 3-bolt chainrings compatible with SRAM cranksets with a removable Spider. Narrow Wide tooth profiling ensures ultimate chain retention. - 7075-T6 aluminum, aerospace grade strength - Stiff 4mm plate thickness to transfer loads without flexing

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

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