Performance by cohort
2 year bands · 2,756 tests
Pass rate is broadly flat across the cohorts — new and old R 1250 GS Adventure TE examples track each other at the test bay.
Pass
94.8%
Fail
3.3%
PRS
1.9%
Avg mileage at test
11,787 mi
Pass
95.3%
Fail
2.8%
PRS
1.6%
Avg mileage at test
10,889 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.