RaceFace Narrow Wide Chainring: 104mm BCD 38t Black ModelNumber=J1451 50" (216x63mm) B3

50" (216x63mm) B3

black or nickel coated

Color Silver Half Link Chain No Designed for ebike Yes keyword search Shimano2018 Drivetrain Speeds 10 Defined Color Silver Links (links) 138 Weight 276 Chain Connection Type Pressed Pin

46 Spindle Interface Type Shimano Hollowtech II Spindle Interface Type FSA MegaExo Spindle Interface Type FSA MegaExo Light Spindle Interface Type RaceFace EXI Weight 110 BB Shell Width (mm) 86 BB/Frame Interface 386 EVO

}Wolf Tooth Bosch Gen 4 Direct Mount Chainring - Drop-Stop B 34T Black

RaceFace Narrow Wide Chainring: 104mm BCD 38t Black ModelNumber=J1451 50" (216x63mm) B3RaceFace Narrow Wide Chainring: 104mm BCD 38t Black. RaceFace Narrow Wide Chainrings feature tooth profiling for chain retention and a blend of weight and durability suitable for XC DH and everything in between. 7075 T6 aluminum aerospace grade strength Compatible with 9 10 11 and 12 speed Stiff 4mm plate thickness and I beam construction transfer loads without flexing Reversible laser etched graphics TECH SPECS Tooth Count 38 Ring Position Type Chain