Crankshaft Bearings Plastic Cage R/T with Oil Seals – by Stage6

In high-performance engines, crankshaft bearings and oil seals play a crucial role in durability and efficiency. This upgraded Stage6 R/T kit combines premium SKF bearings with striking orange FKM oil seals, delivering both top-level performance and a distinctive racing look.

Suitable for scooters with Minarelli / Minarelli Replica 2-stroke engines (please verify dimensions before ordering).

Bearing Versions Available :

Polymer cage (Racing use)

• Increased elasticity
• Reduced friction compared to metal cages
• Ideal for high-revving racing engines
• Maximum continuous temperature: 120°C

! Only for engines without catalytic converter

Steel cage (Street use)

• More durable under long-term load
• Better suited for daily riding
• High reliability for extended use

Both versions are SKF-approved for speeds up to 20,000 RPM. Correct installation and proper lubrication are essential for maximum lifespan.

Installation note : The half-open side of the bearing must face the crankshaft webs.

High-Performance FKM Oil Seals

The newly developed orange FKM seals are manufactured using advanced production technology. Compared to older seal types, they offer:

• Longer service life
• Reduced friction
• Improved overall engine efficiency

Kit Contents : 

• 2x SKF 6204-C4 crankshaft bearings (20x47x14mm, polymer cage)
• 1x FKM oil seal 20x42/43x8mm
• 1x FKM oil seal 20x30/34x6mm