Dec 2, 2025
Choosing Between Harley M8 107 and 114 Engines
Harley-Davidson riders talk a lot about the Milwaukee-Eight engines—especially the difference between the M8 107 and M8 114.If you’re shopping for a new bike or thinking about upgrading, these two engines will come up fast. This guide breaks down everything that actually matters: real dyno numbers, torque curves, fuel economy, and what each engine feels like on the road. You’ll also get source…
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