People have lots of gears because people buy numbers, thinking more is better. It's why we have six and even seven gear cars on the market.
I've got six gears on my current bike but only use three of them most of the time, and I'm in the hilly North Downs. The gear range is more important than the number of gears.
Bella's choice is the Nexus 3 with almost 200% range or the Nexus 7 with 244% range, so not much gain with the latter.
Bella has said this:
"I will be mostly using the bike on relatively flat ground."
and she has also said it will be steady riding and mainly for exercise. Therefore she may well be ok with three gears covering 200% range, just so long as her riding doesn't include a particularly steep hill.
.
I've got six gears on my current bike but only use three of them most of the time, and I'm in the hilly North Downs. The gear range is more important than the number of gears.
Bella's choice is the Nexus 3 with almost 200% range or the Nexus 7 with 244% range, so not much gain with the latter.
Bella has said this:
"I will be mostly using the bike on relatively flat ground."
and she has also said it will be steady riding and mainly for exercise. Therefore she may well be ok with three gears covering 200% range, just so long as her riding doesn't include a particularly steep hill.
.