Select Teeth/Weight:40T(72g)/42T(84g)/44T(93g)/46T(105g)/48T(118g)
50T(130g)/52T(145g)

Compatibility:SH M370/M390/M430/M590/M610/M615/M670/M675/M770/M780/M78
5/M980/M640/M820
SR X5/X7/X9's 3X cranksets

104BCD narrow wide chainring is fully CNC integrally formed. A sludge drainage groove is added to the tooth root, and the problem of oil sludge accumulation is improved. The design of the long and short teeth is more in line with the actual wear ratio, and it also brings a better effect of preventing chain drop.

104BCD Narrow Wide Chainring - Round 40T 42T 44T 46T 48T 50T 52T