Chainrings

- Includes: (5) 8.5mm outer bolts, (5) 6mm outer bolts, (5) 5mm inner nuts

The Box Four Wide/Narrow chainring completes that package for the 1x8 system. It is the first 8-speed specific chainring designed to optimize chain retention when using 8-speed chains. The tooth profile and thicknesses are tailored to match the inside geometry of the unique Box Four chain. FEATURES - Our 8 is Enough Chainring - Forged & CNC Steel - ED Black Protection - Wide / Narrow 8s Specific - 104 BCD Compatible

- CNC-machined 6061-T6 aluminum with rounded tooth profile to reduce chain wear

Made in the US from 6061-T6 aluminum alloy, Box Two Chainrings are round and true. They fit 104 BCD four-bolt cranks and are available in black anodized with laser-etched graphics from 38 to 45-teeth.

- Replacement steel sprockets for 1-piece BMX cranks - Mount Compatibility: 1-piece - Teeth: 43T - Chain Compatibility: 1/2-inch x 3/32-inch - Tooth Type: Standard

- Replacement steel sprockets for 1-piece BMX cranks - Mount Compatibility: 1-piece - Teeth: 44T - Chain Compatibility: 1/2 x 3/32" - Tooth Type: Standard

- Compatible with 1-piece BMX cranks - CNC machined 6061-T6 alloy construction - Teeth: 25T - Material: Alloy - Chain Compatibility: 1/2x 1/8-inch - Tooth Type: Standard

- Fits 3-piece 22mm BMX cranks - 2mm 6061 aluminum core - Includes adapter for 19mm spindles - Teeth: 25T - Chain Compatibility: Singlespeed - Tooth Type: Standard

- 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"

- CNC machined 7075-T6 aluminum with modified shift gates and special profiles to allow flawless shifting with 9sp and 10sp drivetrains - Middle and outer chainrings have strategically-placed stainless steel pins to further enhance shifting - 5mm thick middle ring, 4mm thick outer ring - Anodized black with laser-etched graphics

- For use with Shimano XTR M960 crankset - CNC-machined 7075-T6 aluminum with modified shift gates and special profiles to allow flawless shifting - Middle and outer chainrings have strategically-placed stainless steel pins to further enhance shifting - 5mm thick middle ring, 4mm thick outer ring - Anodized black with laser-etched graphics

- Wide tooth profiling prevents chain drop without a chainguide - Compatible with 9/10/11 speed chains, allowing a 1x setup on most drivetrains - Constructed in Canada from 7075 aluminum

Our RaceFace Cinch Narrow/Wide Snaggletooth chainring features our highly sought-after tooth profile. Combine this chainring with any modern-day clutch derailleur and never worry about dropping a chain again. - Highly sought-after narrow-wide tooth design provides excellent chain retention without a chain guide - Perfect for 1x setups and compatible with 9/10/11 and 12-speed systems. 9-speed drivetrains require a 10-speed chain - Direct mount for Race Face Cinch Boost cranks, 3mm offset for a perfect 52mm chainline - Direct mount for Race Face Cinch cranks, 6mm offset for a perfect 49mm chainline - CNC'd in Canada from 7075 aluminum with laser-etched graphics

Our oval chainring features our highly sought-after tooth profile for the best 1x drivetrain performance. Combine this chainring with a modern-day clutch derailleur and never worry about dropping a chain again. - Oval shape allows for greater power, increased traction, and a smoother spin - Blackspire's oval shape has an ovality of 12-13% with a timing of 115 degrees after the top dead center - Highly sought-after narrow-wide tooth design provides excellent chain retention without a chain guide - Perfect for 1x setups and compatible with 9/10/11, and 12-speed systems, 9-speed drivetrains require a 10-speed chain - 30 tooth features built-in tabs for a 49.5mm chain line and is threaded for ideal fitment - CNC'd in Canada from 7075 aluminum with laser-etched graphics

Our oval chainring features our highly sought-after tooth profile for the best 1x drivetrain performance. Combine this chainring with a modern-day clutch derailleur and never worry about dropping a chain again. - Oval shape allows for greater power, increased traction, and a smoother spin - Blackspire's oval shape has an ovality of 12-13% with a timing of 115 degrees after the top dead-center - Highly sought-after narrow-wide tooth design provides excellent chain retention without a chain guide - Perfect for 1x setups and compatible with 9/10/11, and 12-speed systems, 9-speed drivetrains require a 10-speed chain - Fitment: Shimano XT M8000 and SLX M7000, asymmetrical 96BCD - Features built-in tabs for a 49mm chainline and is threaded for ideal fitment - CNC'd in Canada from 7075 aluminum with laser-etched graphics

Our Narrow/Wide Snaggletooth chainring features our highly sought-after tooth profile. Combine this chainring with any modern-day clutch derailleur and never worry about dropping a chain again. - Highly sought-after narrow-wide tooth design provides excellent chain retention without a chain guide - Perfect for 1x setups and compatible with 9/10/11, and 12-speed systems. 9-speed drivetrains require a 10-speed chain - For SRAM DM Boost cranks, 3mm offset for a perfect 52mm chainline - For SRAM DM cranks, 6mm offset for a perfect 49mm chainline - CNC'd in Canada from 7075 aluminum with laser-etched graphics

Our boost oval chainring features our highly sought-after tooth profile for the best 1x drivetrain performance. Combine this chainring with a modern-day clutch derailleur and never worry about dropping a chain again. Made specifically for use with any cranks which use a *SRAM interface. Designed for use with 148mm Boost frames. - Oval shape allows for greater power, increased traction, and a smoother spin - Blackspire's oval shape has an ovality of 12-13% with a timing of 115 degrees after the top-dead-center - Highly sought-after narrow-wide tooth design provides excellent chain retention without a chain guide - Perfect for 1x setups and compatible with 9/10/11, and 12-speed systems. 9-speed drivetrains require a 10-speed chain - For SRAM DM Boost cranks, 3mm offset for a perfect 52mm chainline - For SRAM DM Cinch cranks, 6mm offset for a perfect 49mm chainline - CNC'd in Canada from 7075 aluminum with laser-etched graphics

Compatible with *SRAM Direct Mount BB30 Narrow/Wide Snaggletooth chainring features our highly sought-after tooth profile. Combine this chainring with any modern-day clutch derailleur and never worry about dropping a chain again. - Highly sought-after narrow-wide tooth design provides excellent chain retention without a chain guide - Perfect for 1x setups and compatible with 9/10/11, and 12-speed systems. 9-speed drivetrains require a 10-speed chain - For SRAM DM Boost cranks, 3mm offset for a perfect 52mm chainline - For SRAM DM cranks, 6mm offset for a perfect 49mm chainline - CNC'd in Canada from 7075 aluminum with laser-etched graphics

Our Shimano M9100 Narrow/Wide Snaggletooth chainring features our highly sought-after tooth profile. Combine this chainring with any modern-day clutch derailleur and never worry about dropping a chain again. - Highly sought after Bi Directional narrow-wide tooth design provides excellent chain retention without a chain guide - Direct mount for Shimano M9100, M8100, and M7100 and perfect for 1x setups - Features a perfect 51mm to 55mm chainline, depending on axle length and spacer configuration - CNC'd in Canada from 7075 aluminum with laser-etched graphics

Our Shimano M9100 Narrow/Wide Oval Snaggletooth chainring features our highly sought-after tooth profile. Combine this chainring with any modern-day clutch derailleur and never worry about dropping a chain again. - Oval shape allows for greater power, increased traction, and a smoother spin - Highly sought-after bi-directional narrow-wide tooth design provides excellent chain retention without a chain guide - Direct mount for Shimano M9100, M8100, and M7100 and perfect for 1x setups - Features a perfect 51mm to 55mm chainline, depending on axle length and spacer configuration - CNC'd in Canada from 7075 aluminum with laser-etched graphics

GXP Boost 3mm Offset Thick Thin Chainring. Awesome chain line plus awesome chain retention enough said. - 12 spd Eagle compatible. - Designed and tested in MTB heaven, the Peak District. - Keeps your chain on!

- 52-36 tooth 11 speed Campagnolo chainrings - X.P.S.S. technology for faster and more efficient shifting than previous generation chainrings - Compatible with all 4-arm cranksets (2015+) - 112/145mm BCD

- 52 tooth 11 speed Campagnolo chainring, for use with 36 tooth threaded inner chainring - Compatible with 2011-2014 Super Record, Record, Chorus and Comp Ultra cranksets - 110mm BCD

- 12 speed Record / Super Record chainring - Surface treatment improves durability - 145 BCD outer rings are specific to Record or Super Record, while 112 BCD inner rings are shared between the two groups

Dimension classic 4-hole cruiser chainwheel, with offset to allow chainline adjustment. - Classic 4-hole cruiser chainwheel - Offset ring allows chainline adjustment - Polished steel - Fits 1-piece crankarms - Requires 1/2-inch x 1/8-inch chains

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)

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

- 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

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

- 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)