Surly Mr. Whirly Spindle for 68mm BB Shells 47.5mm Chainline

Surly Mr. Whirly Spindles.

• 100% CroMoly steel
• Proprietary dimensions and spline for use only with Surly Mr. Whirly cranks
• This spindle will provide a 47.5mm chainline on frames with a 68mm BB shells; does not fit 73mm shells