An issue many people ran into when they began using 1x setups was chain retention with the front chainring. In the beginning of the 1x movement, many companies dealt with this by using aftermarket chain keepers that somehow bolted to the frame. Many people discovered that using a narrow-wide chainring in conjunction with some type of 'clutch' rear derailleur helped abate or eliminate these chain-jumping issues. Narrow-wide rings use alternating tooth profiles that more positively engage the chain and help control a deflecting chain in bumpy conditions. Your friends at Surly have partnered with SRAM to bring you stainless steel X-Sync chainrings. Stainless Steel is durable. This durability is pretty useful when you're talking about the one ring that is bearing the brunt of all your miles.

Surly's Stainless Steel Chainrings last longer than their aluminum brethern because the 304 grade metal they use is 35% stronger. The rings aren't pinned or ramped so when one side starts to wear you can flip it around and pedal some more! They work great with singlespeed, fixed, and 1x9 applications, and the teeth are 2.1mm thick so they work well with 9-speed chains.

Proven on the World Cup circuit, Shimano's Saint chainrings are optimized for single-ring drivetrains and the rigors of competitive downhill racing. They're available in a variety of tooth counts to suit your riding style or course.

• Replacement for one-piece crank • Steel • Double chain guard • 3/32-inch

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

Shimano XTR M9020 11-Speed Chainrings - For use with 22t (CK9011) and 40t (CK9018) chainrings - Chainring BCD: 96 Shimano Asymmetric - Drivetrain Speeds: 11 - Material: Ti/Carbon - Ring Position/Type: Middle

- For FC-E600 (CRANKSET)

Shimano SLX M665 middle chainring for 9-Speed drivetrains. - For use with 22t inner chainring and bashguard - Ring Position/Type: Middle - Chainring BCD: 104

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

Chromag's Sequence chainring uses X-SYNC technology licensed from SRAM for unmatched chain retention. So now, no matter what kind of riding you do, you can have the peace of mind that your chain will stay put, and you can give your bike a little extra flair with the timeless Chromag styling. •104mm BCD

Shimano XTR M9020 11-Speed Chainrings - For use with 30t (CK9017) and 22t (CK9011) chainrings - Chainring BCD: 96 Shimano Asymmetric - Drivetrain Speeds: 11 - Material: Aluminum - Ring Position/Type: Outer

- 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

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.

- Fits asymmetrical 96mm BCD with built-in threaded standoffs - Used on Shimano XTR M9000 and M9020 crankset (both race and trail models) - Features Drop-Stop tooth design to prevent unwanted chain drop - Mount using the stock Shimano XTR M7 chainring bolts - 49mm chainline for 28-34 tooth and 50mm for 36 tooth - Recommended for use with 10 or 11sp chain (10sp chain works on 9sp drivetrain) - Made in the USA from 7075-T6 aluminum alloy - 41g (30t)

- Precision CNC machined AL7075/T6 alloy - No shift ramps- for single chainring use only - Can be used with chainguides and bashguards

- Steel 42T chainring with double alloy chainguard - 104mm 4-bolt interface - Mount Compatibility: 104mm 4-bolt - Teeth: 42T

Alfine S501 chainring for single speed internally-geared drivetrains.

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.

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

A total redesign of Odyssey's popular MDS sprocket. With a built-in full guard, this sprocket lives up to its name, helping to protect your chain from anything you can throw at it. Sprocket thickness increases towards the guard area for greater strength. Compatible with all chain widths. - 7075 Aluminum

SRAM's X-Sync Boost Direct Mount Chainring features tall teeth with alternating tooth profiles that hold the chain amazingly well and still provide space for mud to clear. - Chainring BCD: SRAM BB30 Direct Mount, SRAM GXP Direct Mount - Color: Black - Drivetrain Speeds: 10, 11 - Material: Aluminum - Ring Position/Type: Chain Retaining Single Ring - Offset: 3mm

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. - Drivetrain Speeds: 10 , 11 - Material: Steel - Ring Position/Type: Single - Weight: 110 grams (32t), 96 grams (30t),

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

- Drivetrain Speeds: 11 - Chainring BCD: 110 Shimano Asymmetric - Material: Aluminum

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

612 Track rings are the perfect compliment to any 144mm B.C.D. crankset. They are made from 7000 series aluminum and feature a lovely and durable anodized finish. - BCD: 144 - Chain Compatibility: 1/2-inch x 1/8-inch

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)

FSA Pro Track Chainrings are CNC Machined AL7075/T6 with laser-etched logos. - Requires 1/2" x 1/8" chain

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