Year-by-Year Guides
Why 2017 is the M8 Benchmark
The new era.
Harley-validated
Why
- Completely new engine (4 valves, counter-balancer)
- More power and smoothness
- Precision oil cooling
- Twin-cooled on CVOs
Quick questions
Bad Harley years?
Twin Cam 1999-2006 (cam chain), 2014-2016 Touring (early water-cooled), M8 117 2018-2019 (oil pump).
Best years?
Late Evo (1996-1999), Twin Cam 2007-2013, M8 107 2017+.
Where to dig deeper
- NHTSA Recall lookup by VIN
- HDForums year-specific threads