I don't remember what size drill bit I used, but you want something a little
undersized. It's easy to make the hole bigger if necessary, but impossible
to make it smaller. I used a hand drill (the totally manual kind that you
crank). The carbon fiber is really easy drill.
After drilling it, use a small file to square off the corners of the hole.
You want to end up with a square hole because the Miyata bolts have a square
section under the cap. The square section keeps the bolts from spinning in
the hole. If the hole is too big the bolts will spin in the hole, so be
careful as you are drilling and filing. The carbon fiber is really easy to
I put masking tape on the base where the holes were going to go. I used
double stick tape to position the seatpost and bumpers. Then I used a pen
to mark the position of the holes on the masking tape. After that I pulled
everything off, crossed my fingers, and drilled the holes.
The holes for the Wilder rail bracket are in the same position as the Miyata
holes, so you will be able to upgrade to the Wilder bracket later.
>From: Nick Dangerously
>Ok, My carbon fiber seat base should be getting here
>tomorrow, tuesday. Is their anything I should know
>before drilling it out? I plan to use my miyata seat
>post again, i think its a miyata, whatever came with
>my miyata seat. Im going to use the plastic base as a
>rough guide and the seat post bracket as an exact
>Once i drill it out, will I be able to upgrade to a
>wilder rail bracket later? Um, what kind of bit should
>I be using? If i cant find a drill press (one that ill
>be allowed to use anyways) can I use a cordless drill?
>Anything else I should know.
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