HPI 12x21x5mm Ball Bearing (2)

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This is a pack of two replacement HPI 12x21x5mm Ball Bearings. 

This product was added to our catalog on July 14, 2015

Mike A.
Sunday, Jun 24 2018 (6 months ago)
HPI 12x21x5mm Ball Bearing (2)
Almost every HB racer I have talked to has had problems with these bearings. The shields come off very easy and get munched up in the bevel and pinion gears in the gear box. So u always see those parts on B.O. as well. So either pull the shield off before u put them in, or buy the Kyosho bearing. Its a much better bearing and the shield won't come off.