Dunlop 61905-2Z / 6905ZZ Kart Front Hub Bearing Set of 4 – 25 × 42 × 9 mm, 2Z Metal Shields – Fits OTK & Tony Kart 2017 Onwards

The Dunlop 61905-2Z is the front hub bearing fitted to OTK chassis from 2017 onwards, supplied here as a complete set of four — enough for both front wheels in one go, rather than mixing fresh bearings with worn ones across the axle. Measuring 25 × 42 × 9 mm with 2Z metal shields on both faces, it keeps track dust, grit and rubber out of the raceway through a race weekend. Also marked 6905ZZ, which is the same bearing under the alternative designation. Fits OTK and Tony Kart front hubs from 2017 onwards. Supplied new as a set of four.