Really enjoying the bike - really good integration of the motor even if the front fork is a bit low rent for a £2500 bike. On the flat though my cadence is too high and I generally live on the tiny rear cog. For me it's all too low geared - I did the steepest slope around (Castell Coch) and I'm in 3d. I'm confused by the options and implications of putting a larger front chainring on though - so many choices. Its 38 teeth currently and maybe a 42 would be far better suited to this torquey bike? Anyone done it and kept it safe with a new resized chainguard etc? I can do it without pulling the crank out right? Thanks