It's an SP dynamo hub PL-8X. http://sp-dynamo.com/8Xseriesdynamo%20hub.html
Here's I was thinking I'd be rid of fucking adapters. Modern bikes fucking suck.
I dont think there is an end cap solution, I looked into it when I couldnt find the 12mm SP hub in stock ANYWHERE ..
The adapter I have that takes 15mm down to QR is a specially machined tube arrangement. I wonder if using a straight bore tube will cause issues.
@amey started
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It's an SP dynamo hub PL-8X.
http://sp-dynamo.com/8Xseriesdynamo%20hub.html
Here's I was thinking I'd be rid of fucking adapters. Modern bikes fucking suck.