headstock bearings and seals ktm sc620 sc 620 1996 1999 Honda NES150 The seal thickness is approximately

The seal thickness is approximately 2mm each

then the ignition coil could be the culprit and it's a good idea to get some new coils on the bike

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headstock bearings and seals ktm sc620 sc 620 1996 1999 Honda NES150 The seal thickness is approximatelyBrand new set of headstock steering bearings and seals to fit: KTM SC 620 (1996 1999). This set of head stock bearings are taper roller style and have been manufactured to replace the original set of steering bearings on a KTM SC620 for the years and models shown above. Top sized: 29mm x 50. 25mm x 15mm. Bottom sized: 29mm x 50. 25mm x 15mm. All sizes set out ID x OD x Thickness. The seals are not included in the measurements. If you require different