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.
Truvativ chainring MTB 38T 104mm Alu black
Truvativ chainring MTB 38T 104mm Alu black
Sram Red E1 Thread Mount Road X-Sync chainring 42T
Road chainring, for 1x12/1x13 system, 42 teeth, Thread Mount, for use with Sram Red XPLR AXS power meter.
Shimano GRX FC-RX600-10 46 teeth 10 sp. chainring
Large chainring for 2x10 system, suitable for GRX FC-RX600-10 cranksets, 46 teeth, paired with a 30-tooth small chainring, BCD 110 mm.
Shimano FC-MT510/511 MTB chainring for 12 speeds
Chainring for 1x12, BCD 96 mm, for cranks FC-MT511/512 with 32 teeth.
Sram RED E1 Aero Direct Mount 48T chainring
Aero chainring for new RED cranks, 12/13-speed, X-Sync technology for chain stability, 48 teeth, direct mount attachment, enhanced aerodynamics, black/silver.
Garbaruk 76BCD Sram XX1 Round chainring Gold
MTB chainring for 1x systems, round shape, material 7075-T651 AL, 32 profiled teeth, for 9, 10, 11 chains and for 12 sp. chains Sram Eagle and KMC.
Garbaruk Round chainring Shimano XTR M9100 Black 34T
Round Narrow Wide chainring for MTB, manufactured by CNC milling, designed for Shimano Direct Mount cranks, weight 63 g.
FSA Omega ABS BCD90 chainring black
Road chainring for FSA cranks with ABS 90BCD mounting, weight 80 g, for 50/34T combination.
Sram X0 Eagle Transmission T-Type Chainring Black with a 3-mm Offset
T-Type chainring, X0 series, 8-bolt Direct Mount, a 3-mm offset, for T-Type chains, 30/32/34 teeth.
Sunrace CRMX0T Narrow Wide chainring 40 teeth
Aluminum chainring, Narrow Wide tooth profiling, 96 mm bolt circle diameter, for 1x11-speed systems, suitable for MTB and gravel bikes.
Absolute Black XT M8000 BCD96 OVAL chainring HG+12sp.
Oval chainring for cranks with a four-bolt mount, 96mm BCD. Exclusively for Shimano HG+ 12-speed chains.
MAX1 Narrow Wide chainring Race Face, 32T black
MAX1 Narrow Wide chainring designed for mounting on RaceFace cranks, suitable for 10-12 speed drivetrains.
Sram X-Sync Eagle Chainring 34 Teeth 3 mm Offset Boost Polar Grey
12-speed chainring with a 3-mm offset for the Boost, Direct Mount, for Sram cranks, 34 teeth.
Race Face Narrow Wide chainring 30 teeth black
Race Face chainring with profiled teeth for use as a single chainring. Mounting 104BCD, 30 teeth. Compatible with 9 / 10 / 11-speed.
Sram X-Sync Direct Mount Steel Chainring 3 mm Offset Boost 30 Teeth
Direct Mount chainring for Sram cranks, X-Sync technology with specially shaped teeth compatible with systems without inner cages.
Sram Eagle GX CR X-sync Direct Mount 6 Offset 12-speed Chainring
Sram Eagle chainring with a 6-mm offset for 12-speed Direct Mount groupsets, 34 teeth.
Sram Red 22 Chainring 39 Teeth 11S S2 130 mm
Sram road chainring for 11-speed systems and Red22 and Force22 cranksets. X-Glide technology, 39 teeth, black colour.
Sram T-Type Eagle 70 DM 3mm chainring
Steel chainring for an MTB 1x12 Eagle T-Type drivetrain with SRAM Direct Mount 3-bolt mounting, a 30-tooth ring, and a 3 mm offset.
FSA MTB chainring 104x38
A mountain bike chainring with a BCD 104 bolt pattern and 38 teeth. CNC-machined Al7075/T6 with a long tooth profile for chain retention.
FSA Road Modular chainring 90x30
FSA road chainring with Cannondale/FSA Direct Mount attachment for double chainset cranks, 30 teeth, CNC-machined from AL7075/T6, black anodized.
Sram X0 D1 chainring guard 34 teeth
A chainring guard for mountain bikes protects the chain and teeth from impacts. For a 34-tooth chainring, compatible with Sram X0 D1.
Sram Rival road chainring 33 teeth 107 BCD black
Sram Rival road chainring with 33 teeth for BCD 107 Asym mounting, aluminum and black, for precise front shifting.
Sram Red XPLR E1 Thread Mount chainring 40t.
Aluminum chainring for a 1x gravel and road drivetrain SRAM RED XPLR AXS, with 40 teeth and Thread Mount threaded attachment.
Sram X0 D1 chainring guard 32 teeth
The converter cover for MTB with Direct Mount 3-bolt Sram direct mounting protects the 32-tooth cassette from impacts; black finish.