Does the DRS come with the E type boomerang adapter, or do I have to order one specially? ALso, I've been told I'll need the adapter w/ my Gemini, can someone explain a little more about the adapter and why its needed?
No. The e-type der. gets sandwiched between the bottom bracket and the bottom bracket shell of the frame. The der. is also bolted to the frame for more support.
ISCG tabs are used for chain retention devices like MRP's.
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