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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.
Average Rating: 1
Sunday, Jun 24 2018 (8 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.