Purolator Pure One. Here's a bunch of info on motorcycle oil filters: http://motorcycleinfo.calsci.com/Fil...tml#OilFilters

looked sintresting, of course in the article they dont list what filters fit aprilias :idk:

Nice. I didn't know they sold them direct. I bought 2 for 25 from an online Buell parts dealer....but they took FOREVER getting them to me...so I won't be ordering from them again.

I usually just get whtever the walmart filter is. its a cartrige style anyhow, so you'll know how well built it is right away.

K&N. I use the nut on the top of it to safety wire it. Most track day organizations require it now. And the drain plug.

i always use factory filters, but for the Amsoil fans, they recomend that if you dont use Amsoil filters to use WIX

I have the factory filters.

I bought a Vesra oil filter for my husband's bike.

K&P all stainless steel low micron rating, high flow, magnetic pre-filter... the filter money can buy!

chicken wire stops the big chunks of metal, clutch discs pretty gd.

Factory Honda. Asked my mechanic who is an ex-superbike racer/champion about other filters. Said even on his race bikes he used stock Honda filters and even stock Honda clutches with no problems ever. So I stuck with Honda. My bike has 50k on it with often sparatic oil change times. Runs perfect too