Prox Ø20x52x15 - 6304JR2 Crankshaft bearingRef : PRO00022A / 1117599

PROX Crankshaft Bearing Ø20x52x15 - 6304JR2

An essential part for the restoration of the crankshaft, this ProX bearing (manufacturer reference 23.6304JR2) is designed to accommodate the primary shaft of small displacement motocross bikes. Compact size Ø20x52x15, reference 6304JR2, it is positioned on the crankshaft side to ensure the rotation of the crankshaft with precise guidance and to reduce friction during the high stresses typical of motocross.

• Brand: PROX
• Category: Crankshaft Bearing
• Dimensions: Ø20 x 52 x 15 mm
• Packaging: individually
• Manufacturer reference: 23.6304JR2
• Universe: Motocross

Designed for maintenance or engine rebuilding operations, this bearing is suitable for 65 cm3 engines and fits particularly the models listed below. It integrates during the replacement of the crankshaft or during a clearance check to restore a healthy and reliable engine assembly.

• KTM 65 SX (2025)
• GAS GAS MC 65 (2025)
• HUSQVARNA TC 65 (2024)

To ensure correct installation, follow the manufacturer's assembly and tooling recommendations and replace worn parts simultaneously during the service.