KTM 660 SMC: MOT pass rate by registration year

Which 660 SMC years pass first time, and which fall short of the model's 79.4% average, from 940 DVSA tests.

2006

highest-passing year · 92.2%

2005

lowest-passing year · 76.2%

16.0pp

spread across 5 years

Pass rate by registration year

first-time pass rate · cohorts with 50 or more tests · registration year from first use date

Highest pass rate: 2006 (92.2% of 51 tests). Lowest: 2005 (76.2% of 244). Years more than two points below the model average: 2004, 2005, 2008.

Registered	Tests	First-time pass	vs model (79.4%)
2003	288	79.5%	+0.1 pp
2004	147	76.2%	-3.2 pp
2005	244	76.2%	-3.2 pp
2006	51	92.2%	+12.8 pp
2008	87	77.0%	-2.4 pp

Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years. A first-time MOT pass is a roadworthiness check, not a full mechanical inspection.

Pass rate over time

first-time pass rate by test year · 2006–2021

Questions

Which 660 SMC years have the lowest MOT pass rate?: 2004, 2005, 2008 registered examples pass first time less often than the KTM 660 SMC overall (79.4%); the 2005 cohort is lowest at 76.2% from 244 tests.
Which 660 SMC year has the highest MOT pass rate?: 2006, at 92.2% of 51 first tests (2005–2025).
How much does the 660 SMC pass rate vary by year?: 16.0 percentage points between the highest (2006, 92.2%) and lowest (2005, 76.2%) cohorts with at least 50 tests. Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.

Full report: KTM 660 SMC reliability, failures and mileage · ranked #3705 of 5428 models· other KTM models: 950, 125, 640 LC4-E, 450 Exc, 250 Exc, Super Duke 990