Shimano Deore FC-M617 Chainring (10 Speed) (104/64mm BCD)
Chainring BCD: 64mm (24T), 104mm (36T, 38T). 36T chainring for use with 22T Chainring. 24T chainring for use with 38T Chainring. Chainring Shape: Round. Compatible with 4-bolt, 104/64 pattern crank arms.
ZONKIE 6/7/8 Speed Bike Chain 1/2 x 3/32 Inch 116 Links Silver
Easy to install: chain joints for the magic buckle, easy to disassemble, easy to clean, reusable. Smooth lubrication: surface polishing, internal oiling.