DIAmond Advanced Motorcycle test
The DIAmond advanced motorcycle test is run by the Driving Instructors Association. It's an alternative to the IAM and ROSPA training routes, and focuses on defensive and Eco riding techniques.
It's recognised as an advanced riding qualification by North West Blood Bikes.
DIAmond trainers are DVSA Enhanced Rider Scheme trainers who have demonstrated that their tuition and riding is of a high standard. They are members of the Driving Instructors Association, and governed by the organisation's standards.