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.
Wolf Tooth chainring DM for Shimano 12 sp. Boost 34 teeth
Standalone chainring, for Shimano 12-speed chains only, 34 teeth, for boost frames, weight 72 g.
Wolf Tooth Oval Boost chainring for Sram DM
Oval single chainring, profiled teeth, for 1x9/1x10/1x11/1x12 systems, for Sram cranks with 3 bolts.
Wolf Tooth Camo chainring 32 tooth
Single chainring for Camo spider, 32 teeth, for 1x10, 1x11, and 1x12-speed chains, weight 41 g.
Wolf Tooth Camo chainring 34 teeth
Single chainring for Camo spider, 34 teeth, for 1x10, 1x11, and 1x12 speed chains, weight 48 g.
Sram Eagle X-Sync 2 Chainring 32 Teeth 6 mm Offset Lunar
Chainring for 1x12 Sram Eagle systems, X-Sync 2 profiled teeth, a 6-mm offset, Lunar colour.
Absolute Black BOOST 148 OVAL chainring 12sp. 32 teeth, black
Oval chainring with 32 teeth, for single-speed shifting and cranks with a splined mount.
Manobike Narrow Wide chainring Sram 3 mm boost black
Narrow Wide chainring, 30 to 36 teeth, for Sram mount, for 3 mm boost axle black.
Shimano Deore FC-M5100 30-tooth Chainring
Chainring for 1x10 and 1x11 shifting systems, 30 teeth.
Sram V2 Steel 104 BCD Chainring 36 Teeth Black
Sram 104 BCD steel chainring, 36 teeth, in a matte black finish.
Shimano Deore FC-M590 9-speed Chainring 22 Teeth
Smallest FC-M590 chainring for 3x9-speed systems, 22 teeth, mounting pitch – 64 mm, black.
MAX1 Narrow Wide chainring BCD110, 40T black
MAX1 single chainring for cranks with a 110 mm bolt circle diameter, compatible with 10-12 speed drivetrains.
FSA Double 96x36t. MTB chainring 2x11
A mountain bike chainring for 11-speed drivetrains with a 4-bolt BCD 96 mounting pattern. Round aluminum design for a 2x11 drivetrain.
Sram X-Sync 40T 11 Speed Apex1 Asymmetric Chainring 110BCD
X-Sync Asymmetric 11 Speed chainring from the Apex1 series for 110BCD, BB30 or GXP pitch. 40 teeth.
Shimano SLX FC-M670 Chainring 32 Teeth
Middle chainring for 3x10 systems, 32 teeth, type – AE, 104 mm BCD, weight – 62 g.
Shimano Deore FC-M590 Chainring 36 Teeth
FC-M590 middle chainring, 36 teeth for 48/36/26 chainring combination, 104 mm pitch, weight – 165 g.
Shimano Alivio FC-M430 Chainring 32 Teeth
Middle chainring for 3x9 systems, 32 teeth, BCD104 mm pitch, material – steel, Alivio series, weight – 121 g.
Shimano SLX FC-M660-10/FC-M670/FC-T671 Chainring 24 Teeth
Small chainring for 10-speed systems and 42-32-24 chainring systems, SLX series, AE type, material – steel, BCD 64 mm.
Shimano Dura-Ace FC-R9100 Chainring – Large
Large chainring for Shimano 2x11 systems, Dura-Ace series, 110 mm pitch, four arms, 50-52-53 and 54 teeth, weight from 103 g.
Shimano Dura-Ace FC-R9100 Chainring – Small
Small chainring for Shimano 2x11 systems, Dura-Ace series, 110 mm pitch, four arms, 34-36-39 and 42 teeth, weight from 26 g.
Sram X-Sync Eagle Boost 38-tooth Chainring 3 mm Offset Polar Grey
12-speed chainring with a 3-mm offset for the Boost, Direct Mount for Sram cranks, 38 teeth.
Shimano Deore FC-M6000 chainring 38 teeth
Chainring for cranks FC-M6000, 38 teeth, for combination BG with a 28-tooth small chainring.
Shimano SAINT FC-M820/825 Chainring 34 Teeth
Chainring for FC-M670/660 cranks and 10-speed systems, 34 teeth.
FSA Pro MTB chainring 2x11 sp. 104 mm 36 teeth
High-quality duralumin MTB chainring made from AL7075-T6 material.
Sram Red AXS D1 Powermeter Spider 50/37 Teeth
Sram Red AXS D1 POLAR GREY Direct Mount powermeter set, includes 50/37-tooth chainrings.