White Industries M30 Mountain Crank - Silver-Bronze

The M30 is part of our 30mm spindle line of cranks which also includes the A30, R30 and G30 models.  The “M” stands for mountain and the “30” is for the 30mm spindle.  Made here in our shop, the M30 draws on over 30 years of crank manufacturing experience with a focus on all the White Industries hallmarks; functionality, durability, and clean design.

The best way to describe this model is, “It’s a White Industries mountain bike crank”.  Simple.  The M30 is a direct replacement for most mountain cranks from the big “S” companies, but with a lot more options: two crank arm colors, eight extractor cap colors, three 1x chainlines, a 2x chainring option, and seven crank arm lengths.  Like we said, options!  Check out the comprehensive information below for all the details you’ll need to help navigate to the correct set up for your bike.

Specifications

• Spindles are 30mm diameter
• Arms and spindles made in our shop from 2024-T365 aluminum
• Black anodized or polished silver (not anodized)
• Extractor caps
  • Anodized aluminum: black, blue, gold, pink, purple, red, and silver
  • Bronze (actually made out of bronze)
• Lengths
  • 155mm, 160mm, 165mm, 170mm, 172.5mm, 175mm, and 180mm
• Weight
  • 575g (175mm length w/spindle)

Tools

• Crank arm mounting bolts
  • Torque wrench (min 40 ft lbs or 54 Nm)
  • 10mm hex bit socket
• Chainring lockring
  • Park BBT-22 or Shimano BBT-32
• Bearing preload collar
  • 1.5mm hex key
• Extractor cap
  • Park SPA-2 pin spanner with .090”/2.3mm pins (this is the red one)

Torque

• Chainring lockring: 30 ft lbs (40 Nm)
• Crank arms: 35-40 ft lbs (48-54 Nm)
  • We recommend retorquing arms after the first ride
• Bearing preload collar bolt: ¼ turn past snug (more may crack the collar)
• Extractor caps: As tight as feels comfortable without the pin spanner slipping out of the holes

Compatibility

• Compatible White Industries chainrings:
  • MR30 series TSR 1X chainrings
  • MR30 series v1 VBC 2X and v2 VBC 2x chainrings
• Compatible with Wolf Tooth “CAMO Direct Mount Spider For White Industries”
• Not compatible with any other brands of chainrings
• Compatible with 5 different White Industries 30mm bottom bracket options
  • BSA, T47 external, T47 internal, PF30, and PF86/92
  • Choose the 30mm bearing option for your style of bottom bracket
• Compatible with other brands’ 30mm bottom brackets
  • You must verify that their cups’ OBW (Outer Bearing Width) when mounted (with seals) does not exceed 97mm
• Designed around a 96mm +/- 1mm OBW (Outer Bearing Width)
  • OBW is the allowable outside-to-outside measurement of your BB bearings (with seals) when they are mounted to your frame.  The bearing preload collar on the crank is adjustable and can accommodate slightly wider or narrower widths (+/- 1mm) than the target number.
• Not compatible with any crank boots/protectors that we are aware of
• M30/A30/R30/G30 Crank Comparison Chart
  

  	Mountain  M30	Adventure  A30	Road  R30	Gravel  G30
  Crank arm	M30: Mountain arms	R30: Road arms	R30: Road arms	M30: Mountain arms
  Spindle	M30  73/92 spindle	M30  73/92 spindle	R30  68/86 spindle	R30  68/86 spindle
  1x chainline:(3mm offset ring, facing inward)	49mm	49mm	46.5mm	46.5mm
  1x Boost chainline: (0mm offset/flat ring)	52mm	52mm	49.5mm	49.5mm
  1x chainline:(3mm offset flipped outward)	55mm	55mm	52.5mm	52.5mm
  2x chainline:(measured between the 2 rings)	47.5mm	47.5mm	45mm	45mm
  Q factor	176mm	163.5mm	158.5mm	171mm
  Width between inside of arms	149.6mm	137mm	132mm	144.6mm
  Weight	575g (175mm w/spindle)	565g  (170mm w/spindle)	560g (170mm w/spindle)	570g (175mm w/spindle)
  BB shell widths	68mm/73mm : 86mm/92mm	68mm/73mm  :  86mm/92mm	68mm or 86mm	68mm or 86mm
  **OBW(outer bearing width)	96mm  (+/- 1mm)	96mm  (+/- 1mm)	91mm  (+/- 1mm)	91mm  (+/- 1mm)