T25 security. I happened to need a T10 and T20 for work, wanted actual drivers rather than switching bits constantly, so I stopped at an Ace Hardware one day. Got them for about $4 a piece. Turns out, they are the security kind, so I went back and got a T25 for the bike! $4, just grab it, no fumbling for bits, can't beat that...
They are the blue handle kind, not sure the brand but I could check (PM me).
