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.
Sram CR X-Sync ST Eagle 34 Teeth DM Chainring 3 mm Offset
Steel 11/12-speed Direct Mount chainring for Sram cranks, a 3-mm offset for Boost axles.
Sram X-Sync Eagle Direct Mount Chainring 38 Teeth 3 mm Offset Boost Gold
Round Direct Mount chainring for Sram 12-speed systems, a 3-mm offset for Boost axles, 38 teeth.
Shimano Ultegra FC-R8000 chainring - large
Large chainring for FC-R8000 crank, 52 teeth, tech designation Y1W898030, for 52/36 tooth cranks.
Shimano Ultegra FC-R8000 chainring - small
Small inner aluminum chainring for FC-R8000 Ultegra cranks, 34, 36, 39 teeth, weight from 34 g.
Blackspire Snaggletooth chainring BCD76 mm for Sram XX1
11-speed chainring with profiled teeth, BCD 76 mm pitch, for Sram XX1 cranks, CNC machined aluminum alloy.
Shimano FC-MT610 Chainring 34 Teeth
Chainring for 1x12-speed systems and FC-MT610 cranks, 96 mm pitch, 34 profiled teeth.
Race Face Narrow Wide chainring 32 t. black
Race Face chainring with profiled teeth for use as a single chainring. Mounting 104BCD, 32 teeth. Compatible with 10/11/12 sp.
Sram Eagle X-sync CF Direct Mount 12-speed Boost Chainring 3 mm Offset 30 Teeth
Round Direct Mount chainring, for 12-speed Sram systems, 30 teeth, Cold Forged Aluminium.
Sram Eagle X-sync 12-speed DM Chainring AXS 6 mm Offset 34 Teeth Titan Grey – TAKEN OFF A BIKE
12-speed chainring, 34 teeth, a 6-mm offset, Sram 3-bolt mount, titanium grey.
Shimano Deore FC-MT500-2 Chainring 36 Teeth
Doere FC-MT500-2 2x10-speed chainring with 36 teeth.
Shimano SLX FC-M7000 2x11-speed Chainring 38 Teeth
Large chainring for FC-M700 2x11-speed cranksets, 38 teeth, 96 mm mounting pitch, for a combination with 28-tooth chainrings, weight – 95 g.
Shimano SLX FC-M7000 2x11-speed Chainring 34 Teeth
Large chainring for FC-M700 2x11-speed cranksets, 34 teeth, 96 mm mounting pitch, for a combination with 24-tooth chainrings, weight – 66 g.
Shimano SLX FC-M7000 2x11-speed Chainring 28 Teeth
Small chainring for FC-M700 2x11-speed cranksets, 28 teeth, 64 mm mounting pitch, for a combination with 38-tooth chainrings, weight – 60 g.
Shimano SLX FC-M7000 2x11-speed Chainring 26 Teeth
Small chainring for FC-M700 2x11-speed cranksets, 26 teeth, 64 mm mounting pitch, for a combination with 36-tooth chainrings, weight – 46 g.
Shimano SLX FC-M7000 2x11-speed Chainring 24 Teeth
Small chainring for FC-M700 2x11-speed cranksets, 24 teeth, 64 mm mounting pitch, for a combination with 34-tooth chainrings, weight – 42 g.
Shimano SLX FC-M7000 2x11-speed Chainring 36 Teeth
Large chainring for FC-M700 2x11-speed cranksets, 36 teeth, 96 mm mounting pitch, for a combination with 26-tooth chainrings, weight – 88 g.
Sram X-Sync Direct Mount Steel Chainring 3 mm Offset 28 Teeth
Direct Mount chainring for Sram cranks, X-Sync technology with specially shaped teeth compatible with systems without inner cages.
Sram Force 22 X-Glide 53T 130 mm Chainring Blast Black
Sram Force 53-tooth road chainring for 130-mm pitch.
Shimano SLX SM-CRM75 12-speed Chainring 34 Teeth
New 12-speed single chainring, Direct Mount, 34 profiled teeth.
Shimano SLX SM-CRM75 12-speed Chainring 30 Teeth
New 12-speed single chainring, Direct Mount, 30 profiled teeth.
Shimano Deore FC-M6000 (BF) Chainring 26 Teeth
Crankset for Doere FC-M6000 2x10-speed systems, 26 teeth.
Shimano FC-M6000 Chainring 24 Teeth (BE)
Smaller chainring for FC-M6000 cranksets, 24 teeth, for BE combination with 34-tooth large cranksets.
Race Face SINGLE Direct Mount Oval N/W chainring black 30 t.
Race Face oval chainring with CINCH system. Compatible with 9, 10, 11, and 12 speeds., weight 72g
Sram X-Sync Eagle 30T DM 3 Offset Boost Chainring Polar Grey
12-speed chainring with a 3-mm offset for the Boost, Direct Mount, for Sram cranks, 30 teeth.