Chainrings
The number of teeth on a chainring, in combination with a choosen rear cog, determine how hard a given gear will be. In order to select the proper chainring, it is necessary to know how the chainring mounts to the crank. Some chainrings attach by 4 or 5 bolts to a cranks spider. The distance between the bolts is referred to as the Bolt Circle Diameter, or BCD. You must select a chainring which matches the BCD of a crank.
Other cranks use direct-mount chainrings. Instead of mounting to a spider, the chainring, as the name implies, mounts directly to the crankarm and is secured by a locknut.
Chainrings for 1x use generally come with specially profiled, taller "narrow-wide" teeth which help improve chain retention. Chainrings for 2x and 3x systems, on the other hand, are generally engineered with ramps and pins to allow the chain to shift more easily from chainring to chainring.
Shimano Deore FC-M6100 12-speed Chainring 32 Teeth
Chainring with 32 profiled teeth designed exclusively for 12-speed Shimano chains and Direct Mount Shimano cranks.
Burgtec Thick Thin DM Shimano chainring 34 teeth bronze
Aluminum chainring compatible with Shimano M7100, M8100, M9100 cranks.
Burgtec Thick Thin GXP Boost chainring 3 mm offset 34 teeth silver
Aluminum chainring compatible with Sram GXP Boost cranks, 3mm offset, 34 teeth.
Burgtec Thick Thin DM Shimano chainring 32 teeth silver
Aluminum chainring compatible with Shimano M7100, M8100, M9100 cranksets.
Burgtec Thick Thin DM Shimano chainring 34 teeth silver
Aluminum chainring compatible with Shimano M7100, M8100, M9100 cranks.
Burgtec Thick Thin DM Shimano chainring 32 tooth bronze
Aluminum converter compatible with Shimano M7100, M8100, M9100 cranks.
Burgtec Thick Thin DM Shimano chainring 32 teeth red
Aluminum adapter compatible with Shimano M7100, M8100, M9100 cranks.
Burgtec Thick Thin DM Shimano chainring 34 teeth black
Aluminum chainring compatible with Shimano M7100, M8100, M9100 cranks.
Burgtec Thick Thin DM Shimano chainring 30 teeth black
Aluminum converter compatible with Shimano M7100, M8100, M9100 cranks.
Burgtec Cinch Thick Thin chainring 32 teeth Deep Blue
Aluminum chainring compatible with Race Face Cinch cranks, for both Boost and Non-Boost MTB bikes.
Burgtec Thick Thin DM Shimano chainring 32 teeth black
Aluminum chainring compatible with Shimano M7100, M8100, M9100 cranks.
Burgtec Thick Thin DM Shimano chainring 32 teeth orange
Aluminum chainring compatible with Shimano M7100, M8100, M9100 cranksets.
Burgtec Thick Thin GXP Boost chainring 3 mm offset 32 teeth red
Aluminum chainring compatible with Sram GXP Boost cranks, 3 mm offset, 32 teeth.
Burgtec Thick Thin GXP Boost chainring 3 mm offset black
Aluminum chainring compatible with Sram GXP Boost cranks, 3 mm offset.
Burgtec Thick Thin GXP Boost chainring 3 mm offset 32 teeth Silver
Aluminum chainring compatible with Sram GXP Boost cranks, 3mm offset, 32 teeth.
Burgtec Cinch Thick Thin chainring black
Aluminum chainring compatible with Race Face Cinch cranksets, for both Boost and Non-Boost MTB bikes.
Absolute Black Sram Oval Boost for Shimano chain 12spd.
Oval chainring for cranks with a three-bolt spline mount - designed for single-speed drivetrains, Sram cranks, and Shimano chain.
Sram X-SYNC 107BCD Road Chainring Polar Grey 46 Teeth
Sram X-SYNC 12-speed road chainring with 107BCD mount, POLAR GREY, 46 teeth.
MAX1 Narrow Wide chainring BCD104, 32t blue
MAX1 single chainring for cranks with a 104 mm BCD, suitable for 10-speed and 11-speed drivetrains.
Sram Red 22 X-Glide 11-speed Chainring 53 Teeth
11-speed big road chainring, 53 teeth, BCD130 mm, material – Aluminium 7075 T6.
Sram Eagle X-sync 2 SL Direct Mount 3 Offset 12-speed Chainring 34 Teeth Black
Chainring with 34 profiled teeth, Sram Direct Mount, a 3-mm offset, X-Sync 2 SL version.
Sram Force D1 Chainring 46 Teeth BCD 107 mm DISCOUNT
Large chainring for Sram Force D1 cranks, 46 Teeth, for 12-speed system, for 107 mm mounting pitch.
Wolf Tooth BCD104 chainring wide/narrow teeth
Chainring with 4-bolt mounting, for 104 mm BCD cranks, compatible with 9, 10, 11-speed chains of all brands and 12-speed SramEagle, KMC, Connex, and Wippermann.
Sram X-Sync Road Chainring 107 Black
12-speed aluminium road chainring, 42 teeth, BCD107 pitch, black.