When you could purchase a Thornton Suspension System you were supplied 2 x extra long SP4 Spring Eyes, I assume the thinking was that you used 2 x Standard SP4 Spring Eyes, and the 2 x extra long SP4s supplied with the kit were to enable adjustment of the ride height, I have a requirement for 2 x Thornton type SP4s, alternatively the standard Club Spares type with extra thread would be fine if available, but I doubt they are, unless specially manufactured. Although Thornton, in partnership with Performance Suspension no longer exists, does Magri Motorcycles still exist, perhaps they might have some old stock they might like to shift, any info would be greatly appreciated. Peter