I believe you can Velcro it in the down tube...that was hard for me, my hands didn’t fit in there easily...so I wrapped mine really well with some bubble wrap, taped that up...and it fits in there snug. I figure at least I won’t have to worry that it might come loose at all...

Yes, that second bolt goes inside the “bento” area, with a washer that is provided...

Have you bought all your Di2 parts? Reason I ask is that I’m switching my Marquise build over to eTap and will sell my Di2 stuff. Barely used.

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Favorite Gear: Dimond | Cadex | Desoto Sport | Hoka One One

Already have Di2, but thanks. Do you have Tririg brakes and if so, do you have the 2 bolt adaptor to mount the rear brake. My Brilliant has the single bolt hole but it looks like I'll need the adaptor to mount the rear brake.

Yes, using the adapter on the TriRig brakes.

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Favorite Gear: Dimond | Cadex | Desoto Sport | Hoka One One

One other question. On the front brake cover piece, there is small hook and what looked like an O ring in a little plastic bag on the inside of the brake cover. Only looked at it briefly when I unpacked everything but can't think what it would be for?

What di2 parts do you have that you need to get rid off? - stripped my Road bike for di2 parts, for my tri build, But Will eventually Need to replace those (to rebuild the Road bike)

Extra fail safe. Wraps around brake cable. The magnet holding the cover in place is very strong so I can’t see it ever failing.

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Favorite Gear: Dimond | Cadex | Desoto Sport | Hoka One One