TKO Ceramic 7x19x6mm Front Engine Bearing (O.S., Novarossi, RB) (1)
[TKO-CB-607C-2RS]

TKO Ceramic 7x19x6mm Front Engine Bearing (O.S., Novarossi, RB) (1)
Harley Hall - Rating: 5 of 5 Stars! Sunday, November 06, 2011
I originally replaced the stock O.S. front and rear bearings after 3 gallons in my XZB .21 SPEED with some Boca Ceramic bearings as I heard they were the best. Immediately after installing the Bocas I began having random flame-outs that I couldn't explain until I inspected the bearings, which after just 1 gallon the Boca Ceramics were crunchy and you could clearly see light through the front bearing seal. I replaced both the front and rear bearings with TKO Ceramics and now a couple of gallons later my Speed mill is running stronger than when it was new and has not had a single flame-out since installing the TKO Ceramics. My .02