WHITE INDUSTRIES MR30 CRANK SET A30｜"Adventure" Cranks for Specific Frame Conditions
Compatible with a limited number of frames. However, if the conditions are met, it is truly one-of-a-kind.
The WHITE INDUSTRIES MR30 CRANK SET A30 is a special crankset developed for frames with 73mm bottom bracket shells and narrow chainstays, which are difficult to accommodate with standard road or MTB cranks.
The "A" in its name stands for Adventure, and "30" for its 30mm spindle, featuring a unique configuration that combines R30 road arms with M30 mountain spindles. This achieves a natural Q-factor closer to road bikes while providing the chainline required for gravel and adventure bikes.
Manufactured by high-precision machining of 2024-T365 aluminum in the USA, it boasts WHITE INDUSTRIES' characteristic beautiful finish, high durability, and quality that ensures long-term reliable use.
Features
- "Hybrid configuration" of R30 (road) arms × M30 (MTB) spindle
- Developed for frames with 73mm BB shells and narrow chainstay shapes
- Slim design with a Q-factor of 163.5mm (an exquisite setting: narrower than MTB, wider than road)
- 1x compatible with three chainline options (49mm / 52mm / 55mm)
- Also compatible with 2x VBC chainrings (47.5mm)
- Available in 6 arm lengths from 155 to 175mm
- Available in two colors: Black anodized / Polished silver, with 8 end cap colors to choose from
- High-precision 2024-T365 aluminum machined in a US workshop
SPEC
- Spindle diameter: 30mm
- Material: Arms / Spindle 2024-T365 aluminum
- Colors: Black anodized, Polished Silver (non-anodized)
- End caps: Black / Blue / Gold / Pink / Purple / Red / Silver / Bronze
- Crank lengths: 155 / 160 / 165 / 170 / 172.5 / 175mm
- Weight: 565g (170mm + spindle)
- Included: Crank arm set, spindle, lockring, end cap (pre-installed)
- Not included: BB, chainring
- Tools: 10mm hex, 1.5mm hex, Park BBT-22 or Shimano BBT-32, etc.
- Recommended torque: Lockring 40Nm / Crank bolts 48–54Nm
- OBW (Outer Bearing Width): 96mm (±1mm)
Compatibility
- Compatible chainrings: WHITE INDUSTRIES MR30 series (TSR 1x / VBC 2x)
- Compatible with Wolf Tooth CAMO "direct mount spider for White Industries"
- Not compatible with chainrings from other brands
- Compatible bottom brackets (WHITE INDUSTRIES 30mm BB): BSA / T47 External / T47 Internal / PF30 / PF86/92
- Other brands' 30mm BBs can also be used (※OBW must not exceed 97mm when installed)
- Designed OBW: 96mm (±1mm tolerance allowed) ※The outer-to-outer measurement of the frame-side bearings (including seals) must be within spec.
- Crank boots (protective caps): Currently not compatible with any products.
- Recommended frames: Gravel / custom frames with 73mm BB width + narrow chainstays
- Not recommended for MTB frames (Q-factor is too narrow, potential for interference)
- Not recommended for typical road frames (spindle length is excessive)
The A30 is a crank with a particularly clear purpose within the WHITE INDUSTRIES lineup. While not for everyone, it becomes a very attractive option for gravel frames and custom frames that use a 73mm BB shell while having narrow chainstays.
Its ability to maintain a natural pedaling feel similar to road cranks while securing the chainline required for adventure bikes is an unparalleled feature.
While checking compatibility conditions is necessary, when the frame and crank are a good match, the level of completion is very high, and it is a special crankset that allows you to fully appreciate the precision, durability, and beauty characteristic of WHITE INDUSTRIES.
