A while ago I bought a fairly cheap bike - a Pinnacle Lithium 1 from Evans Cycles in the UK. It's dangerously close to being a BSO, but I really enjoy riding it and have no regrets about buying it.
Well, almost no regrets because I find the gears are rather low. Top gear (of seven) is usable (just) on a straight flat road so when there's a steep downhill I run out of gears and have to coast, and I have yet to find a hill so steep I need to use the lowest gear to climb it. It would be nice if I could shift all the gears one place and sacrifice the unnecessary lowest gear for an extra top gear.
The obvious way to do this would be to increase the size of the chainring. It currently has a single 40 tooth chainring, and if I could fit a 46 tooth chainring this would make the gear ratios ideal for me. On a cheap bike I would generally regard this as too much work because the chainring and pedals are a single piece and it would require major dismantling. However it looks to me as with this bike the chainring is on a spline:
If so, hopefully it would be fairly easy to swap the chainring. So my question is whether you can tell from the picture whether the chainring is easily swappable, and if so is there a name for this specific type of chainring I could Google to find a supplier?
I was able to pry off the plastic cover to reveal what the pedal side of the chainring looks like:
The chainring does appear to be separate from the pedal, so I suspect if I take the pedal off the chainring will slide off the spline as well.