[Nick]

As I understand this is Small Diameter vs Large Diameter?
SD can run 9mm or 15mm, but not 20mm axle.
LD can run 15mm or 20mm, but not down to 9mm axle.

Is this the only difference??

 

[jonKranked]

sounds like you need a hadley, because i'm pretty sure they can be adapted to all sizes.

 

[StiHacka]

But can it Boost?

 

[Nick]

sounds like you need a hadley, because i'm pretty sure they can be adapted to all sizes.

Of course, but I'm dealing with a King at the moment. I'm pretty sure Hope are universally convertible too.

 

[Adventurous]

sounds like you need a hadley, because i'm pretty sure they can be adapted to all sizes.

Weird, it doesn't say that on their website?

 

[Sandwich]

the hub shell is actually bigger as well. Not sure about the bearings.

You can run something like this: http://www.ebay.com/itm/MTB-Tools-Mountain-Bike-15mm-Thru-Axle-to-9mm-Quick-Release-Wheel-Adapter-/251374805174 if you need to run a QR style axle in the 15mm LD hub. I ran one in my american classic 15mm hub for a while, it was OK.

 

[Nick]

the way I see it I'll never, ever, use a 9mm q/r on a mountain bike again, so the goal was to maintain the 15 - 20mm swap capability.

 

[boostindoubles]

The LD is beefier shell and looks perty.