Shimano Alivio FC-M410 MTB Mountain Bike 8 Speed Octalink Crankset 42-32-22T Chainset 170mm ES25/ES300 Bottom Bracket

Option:
1, Crankset only 
2, Crankset + BB: Come with BB-ES25 /ES300 68×118mm bottom bracket

Model: FC-M410
Level: Alivio
Color: Black
Speed: 3×8 Speed
Chainring: 42-32-22T
Compatible chain: HG/UG
Arm length: 170mm
Bottom bracket type: Octalink
Recommended bottom bracket: BB-ES25 or BB-ES300(Octalink)
Recommended bottom bracket axle length: 118mm(Octalink)

Octalink bottom bracket model: BB-ES25 /ES300
(BB-ES25 or BB-ES300, same performance and specification）
Axle length: 118mm
Type: Octalink
Shell width: 68mm
Shell thread: BC1.37" x 24T
Come with 2 bolts(M15)
Sealed cartridge keeps out dirt and water
Easy installation