Oh i'm not expecting free service, $10 i guess is reasonable. The only thing i need is to put a cog and lockring on the hub, i bought a new wheelset so there is nothing to remove, plus i can install the wheel myself later. And looks like only soma makes black cogs larger than 16t, but the only place i found them is from an online shop that charges $20US to ship it...it's an all black deepv and i wanted a black cog to go along with it, i guess not.