Crank Model: White Industries M30/R30/G30/A30

  • MR30 Spindles

    MR30 Spindles

    Product Description

    These are replacement spindles for our MR30 series cranks that use a 30mm spindle.  Refer to the chart below to see which spindle will work for your configuration.

    Specs

    • Made from 2024-T365 aluminum
    • Anodized black, then bearing surfaces precision ground
    • Comes in four lengths

    Compatibility

    • Compatible with White Industries MR30 series crank arms
    • Not compatible with any other brands of cranks
    • R30/G30 spindle is for 68mm or 86mm bottom bracket shells
      • Spindle 126.2mm total length
    • M30/A30 spindle is for 68mm/73mm or 86mm/92mm bottom bracket shells
      • Spindle is 131.2mm total length
    • Fat Bike -100mm spindle is for 100mm bottom bracket shells only (will not fit 120mm shells)
      • Spindle is 158.2mm total length
      • For 177mm rear axle spacing with 66.5mm chainlines
    • Fat Bike -100mm/120mm spindle is for 100mm or 120mm bottom bracket shells
      • Spindle is 178.2mm total length
      • For 197mm rear axle spacing with 76.5mm chainlines

    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

    Mountain spindle

    		 M30

    Mountain spindle

    		 R30

    Road spindle

    R30

    Road 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 ring 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

    (for chainstay clearance)

    		 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

     or 

    86mm/92mm

    		 68mm/73mm

     or 

    86mm/92mm

    		 68mm or 86mm

    68mm or 86mm

    **OBW

     (outer bearing width)

    		 96mm

    (+/- 1mm)

    		 96mm

    (+/- 1mm)

    		 91mm

    (+/- 1mm)

    91mm

    (+/- 1mm)

    *55mm chainline for Rohloff and Super Boost hubs

    **This 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.

    What’s In The Box

    • One spindle
    • No mounting bolts included

     Technical Documents

     

     

  • G30 Gravel Cranks

    G30 Gravel Cranks

    The White Industries G30 Crankset is a lightweight, precision-machined crank designed for gravel, all-road, endurance road, and adventure bikes. We machine, finish, and assemble every crank in our Petaluma, California facility. As a result, the G30 delivers exceptional stiffness, lasting durability, and premium American craftsmanship.

    The G30 combines our proven M30 mountain crank arms with our R30 road spindle. This unique design delivers road and gravel chainlines while providing a wider Q factor and increased clearance between the crank arms and chainstays. Therefore, the G30 is an excellent choice for modern gravel bikes, all-road bikes, and endurance road bikes that benefit from additional tire and frame clearance.

    The G30 replaces many popular road and gravel cranksets while offering significantly more customization options. For more than 30 years, White Industries has refined its components through real-world riding and continuous innovation. Today, the G30 reflects that same commitment to precision, reliability, and long-lasting performance.

    The G30 supports multiple chainline options to optimize drivetrain performance. Therefore, you can fine-tune your crankset to match your frame, drivetrain, and riding style.

    Choose from two crank arm colors, six extractor cap colors, three 1x chainline options, an optional 2x chainring configuration, and five crank arm lengths. As a result, it’s easy to build a crankset that fits your bike and your riding goals. Whether you’re racing gravel, tackling long endurance rides, or exploring remote backroads, the G30 delivers premium Made in the USA performance built to last.

    Features

    • Lightweight CNC-machined crankset for gravel, all-road, and endurance road bikes
    • Precision-machined in Petaluma, California
    • M30 mountain crank arms paired with the R30 road spindle
    • Wider Q factor for improved crank arm and chainstay clearance
    • Available with three 1x chainline options
    • Optional 2x chainring configuration
    • Five crank arm lengths for an optimized rider fit
    • Two crank arm color options
    • Six extractor cap color options
    • Durable, serviceable design for years of reliable performance
    • Made in the USA
  • External BSA Bottom Brackets

    External BSA Bottom Brackets

    White Industries external BSA style bottom brackets are made here in our shop and feature Enduro stainless steel angular contact bearings or optional Enduro XD-15 ceramic-hybrid radial bearings.  We offer them with three different bearing sizes to help you fit your favorite crank to your favorite bike.

    “BSA” bottom bracket shells and cups are named after the Birmingham Small Arms Company which created the thread standard used in this system.  It’s also referred to as “British” or “English” style and is the most common type of system found on modern bicycles.  The “external” designation refers to the fact that the bearings will sit outboard of your frame’s bottom bracket shell as opposed to being tucked inside the shell as you would find on some styles of BSA bottom brackets.

  • External T47 Bottom Bracket

    External T47 Bottom Bracket

    Product Details

    White Industries external T47 style bottom brackets are made here in our shop and feature Enduro stainless steel angular contact bearings or optional Enduro XD-15 ceramic-hybrid radial bearings.  We offer them with three different bearing sizes to help you fit your favorite crank to your favorite bike.  “T47” is a bottom bracket standard that White Industries helped develop in 2016 and allows for a greater weld area for bigger frame tubes as well as room inside the shell for internally routed cables and wires.

    The “T” stands for “threaded” and the “47” is the nominal 47mm outside thread diameter of the cup. T47 bottom bracket cups are not compatible with the much smaller (and more common) threaded BSA BB shells.  The “external” designation on this bottom bracket refers to the fact that the bearings sit “outboard” of 68mm and 73mm wide bottom bracket shells, as opposed to our “internal” T47 bottom brackets where the bearings sit “inboard” of 86mm and 92mm wide bottom bracket shells.  If you have an 86mm or 92mm wide T47 bottom bracket shell on your frame, you will need one of our “internal” T47 bottom brackets.

  • Internal T47 Bottom Bracket

    Internal T47 Bottom Bracket

    Product Details

    The “T” stands for “threaded” and the “47” is the nominal 47mm outside thread diameter of the cup. T47 bottom bracket cups are not compatible with the much smaller (and more common) threaded BSA BB shells.  The “internal” designation on this bottom bracket refers to the fact that the bearings sit “inboard” of 86mm and 92mm wide bottom bracket shells, as opposed to our “external” T47 bottom brackets where the bearings sit “outboard” of 68mm and 73mm wide bottom bracket shells.  If you have a 68mm or 73mm wide T47 bottom bracket shell on your frame, you will need one of our “external” T47 bottom brackets.

  • Press Fit 86/92 Bottom Bracket

    Press Fit 86/92 Bottom Bracket

    Product Details

    This bottom bracket is designed for 30mm spindle cranks installed into press fit style BB86 and BB92 bottom bracket shells that have an internal diameter of 41mm. It uses 30mm ID bearings to work with our MR30 series cranks as well as many other manufacturers that use 30mm spindles.  This unique design utilizes Enduro stainless steel double row flanged bearings that press directly into the BB shell.  This allows more room for bigger diameter balls as well as doubling the number of balls per side, both of which greatly increase the durability and life of the bearings.