stf's and spf's?

[Jesse's Playtoy]

duz anyone know the difference between bones stf's and bones spf's?

[PopwarPerson]

STF is street tech formula. if u skate more street get them... SPF skate park forumula...i have stf's best wheels ive ever had...no flatspots and i powerslide a LOT. seriously greeat wheels.

[Jesse's Playtoy]

ooooo
kewl
yea i heard good things about both of them. so im considering buying. i guess im gonna go w/stf.

[Ree123]

ima have to get stf's

[Ramp]