Shimano MTB CRANKSET CHAIN LINE 3 MM OUTBOARD 2X8/7s

Crankset

MTB CRANKSET CHAIN LINE 3 MM OUTBOARD 2X8/7s

Specifications

Manufacturer
Shimano
Name
MTB CRANKSET CHAIN LINE 3 MM OUTBOARD 2X8/7s
MPN
FC-M315-B2
Rear Speeds
7
Front Speeds (chainrings)
2[1]
Drivetrain Brand
Shimano
Chainring Sizes
36, 22[2]
Crank Length (mm)
170, 175
Spindle Interface
Square Taper JIS[2]
Chainring Mount
Riveted Non Replaceable
Chainline (mm)
51.8[2]
Compatible Chain Standards
Shimano HG (Hyperglide)[2]
Sources
  1. [1] AI-extracted, not yet checked against a named source (added 27 Feb 2026): Front Speeds (chainrings)
  2. [2] productinfo.shimano.com, checked 7 Aug 2026: Chainring Sizes, Spindle Interface, Chainline (mm), Compatible Chain Standards

Compatibility

Shimano MTB CRANKSET CHAIN LINE 3 MM OUTBOARD 2X8/7s is a Shimano crankset. It is a 7-speed component. Everything listed below was matched on a specification we hold for both parts: the interface each pairing actually depends on, such as freehub body, speed count, actuation or mounting standard. Where we could not verify that interface, the part is left out rather than assumed to fit.

Front derailleurs for this crankset11

ALIVIO FRONT DERAILLEUR SIDE SWING (CLAMP BAND) 2X9s (FD-M3120-M-B)Mechanically compatible

Shimano

ALIVIO FRONT DERAILLEUR SIDE SWING (CLAMP BAND) 2X9s (FD-M3120-M-B)

  • Both are set up for 2x
  • Both are Shimano drivetrain parts
ALIVIO FRONT DERAILLEUR SIDE SWING (DIRECT MOUNT) 2X9sMechanically compatible

Shimano

ALIVIO FRONT DERAILLEUR SIDE SWING (DIRECT MOUNT) 2X9s

  • Both are set up for 2x
  • Both are Shimano drivetrain parts
ALIVIO FRONT DERAILLEUR SIDE SWING (E-TYPE MOUNT) 2X9sMechanically compatible

Shimano

ALIVIO FRONT DERAILLEUR SIDE SWING (E-TYPE MOUNT) 2X9s

  • Both are set up for 2x
  • Both are Shimano drivetrain parts
ALTUS FRONT DERAILLEUR TOP SWING (CLAMP BAND MOUNT) 2X9sMechanically compatible

Shimano

ALTUS FRONT DERAILLEUR TOP SWING (CLAMP BAND MOUNT) 2X9s

  • Both are set up for 2x
  • Both are Shimano drivetrain parts
CUES SIDE SWING FRONT DERAILLEUR (CLAMP BAND MOUNT) 2X10/9sMechanically compatible

Shimano

CUES SIDE SWING FRONT DERAILLEUR (CLAMP BAND MOUNT) 2X10/9s

  • Both are set up for 2x
  • Both are Shimano drivetrain parts
CUES SIDE SWING FRONT DERAILLEUR (CLAMP BAND MOUNT) 2X11/10sMechanically compatible

Shimano

CUES SIDE SWING FRONT DERAILLEUR (CLAMP BAND MOUNT) 2X11/10s

  • Both are set up for 2x
  • Both are Shimano drivetrain parts
CUES SIDE SWING FRONT DERAILLEUR (DIRECT MOUNT) 2X10/9sMechanically compatible

Shimano

CUES SIDE SWING FRONT DERAILLEUR (DIRECT MOUNT) 2X10/9s

  • Both are set up for 2x
  • Both are Shimano drivetrain parts
CUES SIDE SWING FRONT DERAILLEUR (DIRECT MOUNT) 2X11/10sMechanically compatible

Shimano

CUES SIDE SWING FRONT DERAILLEUR (DIRECT MOUNT) 2X11/10s

  • Both are set up for 2x
  • Both are Shimano drivetrain parts
CUES SIDE SWING FRONT DERAILLEUR (E-TYPE WITHOUT BOTTOM BRACKET PLATE MOUNT) 2X10/9sMechanically compatible

Shimano

CUES SIDE SWING FRONT DERAILLEUR (E-TYPE WITHOUT BOTTOM BRACKET PLATE MOUNT) 2X10/9s

  • Both are set up for 2x
  • Both are Shimano drivetrain parts
CUES SIDE SWING FRONT DERAILLEUR (E-TYPE WITHOUT BOTTOM BRACKET PLATE MOUNT) 2X11/10sMechanically compatible

Shimano

CUES SIDE SWING FRONT DERAILLEUR (E-TYPE WITHOUT BOTTOM BRACKET PLATE MOUNT) 2X11/10s

  • Both are set up for 2x
  • Both are Shimano drivetrain parts
CUES TOP SWING FRONT DERAILLEUR (CLAMP BAND MOUNT) 2X10/9sMechanically compatible

Shimano

CUES TOP SWING FRONT DERAILLEUR (CLAMP BAND MOUNT) 2X10/9s

  • Both are set up for 2x
  • Both are Shimano drivetrain parts

Bottom brackets for this crankset10

CARTRIDGE BOTTOM BRACKETMechanically compatible

Shimano

CARTRIDGE BOTTOM BRACKET

  • Both use a square taper jis spindle
JIS Square Taper (BSA / JIS)Mechanically compatible

Token

JIS Square Taper (BSA / JIS)

  • Both use a square taper jis spindle
JIS Square Taper (ITA / JIS)Mechanically compatible

Token

JIS Square Taper (ITA / JIS)

  • Both use a square taper jis spindle
SQUARE TYPE BOTTOM BRACKET (BB-UN101-K)Mechanically compatible

Shimano

SQUARE TYPE BOTTOM BRACKET (BB-UN101-K)

  • Both use a square taper jis spindle
SQUARE TYPE BOTTOM BRACKET (BB-UN101)Mechanically compatible

Shimano

SQUARE TYPE BOTTOM BRACKET (BB-UN101)

  • Both use a square taper jis spindle
SQUARE TYPE BOTTOM BRACKET (BB-UN300-E)Mechanically compatible

Shimano

SQUARE TYPE BOTTOM BRACKET (BB-UN300-E)

  • Both use a square taper jis spindle
SQUARE TYPE BOTTOM BRACKET (BB-UN300-K)Mechanically compatible

Shimano

SQUARE TYPE BOTTOM BRACKET (BB-UN300-K)

  • Both use a square taper jis spindle
SQUARE TYPE BOTTOM BRACKET (BB-UN300)Mechanically compatible

Shimano

SQUARE TYPE BOTTOM BRACKET (BB-UN300)

  • Both use a square taper jis spindle
TOURNEY CARTRIDGE E-TYPE BOTTOM BRACKETMechanically compatible

Shimano

TOURNEY CARTRIDGE E-TYPE BOTTOM BRACKET

  • Both use a square taper jis spindle
TOURNEY TY CARTRIDGE BOTTOM BRACKET FOR CHAIN CASEMechanically compatible

Shimano

TOURNEY TY CARTRIDGE BOTTOM BRACKET FOR CHAIN CASE

  • Both use a square taper jis spindle

Frequently Asked Questions

What fits Shimano MTB CRANKSET CHAIN LINE 3 MM OUTBOARD 2X8/7s?

On this page we list front derailleurs for this crankset, bottom brackets for this crankset, chains for this crankset. Each listing was matched on a specification we hold for both parts; anything we could not verify is omitted rather than assumed to fit.

Can I use a higher or lower speed chain with Shimano MTB CRANKSET CHAIN LINE 3 MM OUTBOARD 2X8/7s?

No. Shimano MTB CRANKSET CHAIN LINE 3 MM OUTBOARD 2X8/7s is a 7-speed component and needs a 7-speed chain. Chains for different speed counts have different external widths and inner-plate profiles, which causes poor shifting or interference with the neighbouring sprockets.