Nope, 020 was the predecessor of the 021 and was a solid predictable tyre that I'd used for years, the 021 was not in production for long before it was superseeded by the 023. Probably due to a lot of complaints and the very odd wear issue on the front.
Most ST tyres are good enough for British roads and superbikes, imhe sports tyres are really a bit of a con.
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