QUOTE(KenC @ Oct 20 2017, 01:23 PM)
Sifu Azam got strong legs, single speed also can handle.

With 42/52T chainring and 11-32t, lowest gear 42/32 x 15 = 22.5 gear in, same as my lowest gear (36T chainring and 34t @451), which is just enough for this over aged obese Cyclist. the highest gearing gives 52/11 x 15 = 70.9gear in)
My 451 gets 97 gear inch with 52T, 11t. Don't have to spin like hamster on the flat and downhill. Usually 80~90rpm.
With 11-28t cassette, you really don't want to go below 20 gear in. Meaning 39T chainring (20~53 gear inch ) goof for climb Cameron twice a week without coming down. Otherwise 42T to get 22.5 - 57 gear inch which you have to spin more than 140rpm to catch up with anyone else with Bigger wheel and double chainring.
Fuyoo… sifu Azamnecrone really spin like hamster

This is the 1st time I do gear inch calculation on a 16in wheel, looking at these ridiculous numbers! why wouldn't more ppl use internal gear hub on them? Really puzzled…
how long can u will pedal ur bike speed above 35kmj?
thats why i adopt 53t with 11t on the rear. cadence around 110rpm or higher can get above 35kmh. internal hub maybe in future, but as for time being im comfort with external gear as i had many spareparts lying olat my house.
3-4hours pedalling with 80rpm and above for me no problem. i always target 90rpm most the time..this method will drop when i endurance climb such as fraser. usually when climbing i will maintain 65-80rpm but mostly i will get around 60-70rpm.
aiya, wanna go fast get motorcycle.. no need to pedal, just press the throthle