Chainrings
A drive is efficient when the chain and chainring work together perfectly. The most important factor here is an optimum form and force fit, which is achieved by minimizing play between the drive components. Precision is central to KMC in the development of advanced drive components. For example, Narrow/Wide is a new type of tooth profile. The chainrings have alternating narrow and wider teeth that perfectly fill the space between the plates, making the system less prone to chain throw-off.
BCD104 Wide, 38TWide chainring for 4-arm spiders with BCD 104 mm, CNC milled in Europe from AL7075 T6, part of the KMC 10,000km+ program. BCD104 Narrow-Wide, 38TChainring for 4-arm spiders with BCD 104 mm, CNC milled in Europe from AL7075 T6, narrow-wide tooth profile BCD104 Wide, 42TWide chainring for 4-arm spiders with BCD 104 mm, CNC milled in Europe from AL7075 T6, part of the KMC 10,000km+ program. 
KMC RINGS MTB, BCD 104, 36T, blackChainring for 4-arm spiders with BCD 104 mm, CNC milled in Europe from AL7075 T6, narrow-wide tooth profile that reduces the risk of chain dropping. KMC RINGS MTB, BCD 104, 32T, blackChainring 32 teeth for 4-arm spiders with BCD 104 mm, made from AL7075 T6, narrow-wide tooth profile that reduces the risk of chain dropping. KMC RINGS MTB, BCD 104, 38T, blackChainring for 4-arm spiders with BCD 104 mm, made from AL7075 T6, narrow-wide tooth profile that reduces the risk of chain dropping. KMC RINGS MTB, BCD 104, 34T, blackChainring 34 teeth for 4-arm spiders with BCD 104 mm, made from AL7075 T6, narrow-wide tooth profile that reduces the risk of chain dropping. KMC RINGS MTB, Race Face, 38T, Black Chainring 36 teeth for Race Face Cinch, made from AL7075 T6, narrow-wide tooth profile that reduces the risk of chain dropping. KMC RINGS MTB, Race Face, 34T, BlackChainring 34 teeth for Race Face Cinch, made from AL7075 T6, narrow-wide tooth profile that reduces the risk of chain dropping. KMC RINGS MTB, Race Face, 32T, BlackChainring 32 teeth for Race Face Cinch, made from AL7075 T6, narrow-wide tooth profile that reduces the risk of chain dropping. KMC RINGS MTB, Race Face, 36T, BlackChainring 36 teeth for Race Face Cinch, made from AL7075 T6, narrow-wide tooth profile that reduces the risk of chain dropping. KMC RINGS TT, FSA BCD 110 asymmetric, 58T, BlackAero chainring for time trial and triathlon for FSA systems with BCD 110 mm asymmetric, CNC milled in Europe from AL7075 T6. The narrow-wide tooth profile ensures precise chain retention, reduces noise, and improves overall chain performance – ideal for 1x drivetrains under demanding conditions. KMC RINGS TT, SRAM Quarq, 58T, BlackAero chainring for time trial and triathlon for FSA systems, CNC milled in Europe from AL7075 T6. The narrow-wide tooth profile ensures precise chain retention, reduces noise, and improves overall chain performance – ideal for 1x drivetrains under demanding conditions.
