K-EDGE GO Big Pro On-Center Mount subcategory-headset-threadless It means this crank is

It means this crank is compatible with all major bottom bracket standards

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K-EDGE GO Big Pro On-Center Mount subcategory-headset-threadless It means this crank isThe new Go Big On Center Mount by K Edge, the next generation in industry leading GoPro style interface Light Mounts Camera. The new mount provides easier installation with a stronger more secure platform for your Lumina Series Head Light or action camera. Fits 31. 8 diameter size bars. On Center giving you a clean centered position for your Lumina Series light. And better framed image with the newer style cameras that have lenses centered on the