Why hasn't anyone done this?

[J dub]

blunt made abec 11's with built in spacers.

100% false. More than likely they were abec 3's with 11 bearings. 90% of all bearing companies for the skate industry, use made up numbers for their ABEC rating. Just part of life. Learn what brands work and what don't, and ignore their dumb #'s.

Is it really that hard to center a spacer in your wheel?

AMEN!!!

Good to know so I don't over tighten my wheels.....

Straight up, without a center spacer your wheels will never be as dialed as they could be. The spacer is there for a reason, a good reason.

 

[Spicy McHaggis]

i cam in my bearings...................................................... mega dialed

 

[Grant Schofield]

yaeh and abec dosent have to do with the amount of balls in it it has to do with the grade of them, but since most bearings are made in china the abec rating now means nohting.