THIS PACK CONTAINS 2 BELTS - THE MAIN DRIVE BELT AND THE TAPE COUNTER BELT.
The cause of poor loading performance from these old cassette players is usually a perishing main drive belt becoming slack as the rubber dries out becoming stretched and inflexible with age.
A "kink" also forms where the belt has sat without moving around the drive pulley for 20 - 30 years or so. This kink then becomes a permanent feature of the belt causing it to jump and slip.
The tape counter belts don't usually snap or degrade to the same degree, but can slacken off over time and may start to slip.
These high quality, German made, square section belts are newly manufactured and as are as close as possible to the size to the originals, but made from modern, more resilient materials.
They have been tested extensively with this Cassette unit and work perfectly.
Important - before fitting the new belts, make sure that all traces of the old belts have been removed from the pulley wheels with Cassette / Disk Drive Head Cleaning Fluid available in our shop. Residues of the old, worn belts can caused the new belts to slip and/or "ride up" and come off the pulleys.