Bike gearing on Bmx help?

Jon

New member
i am having a little trouble working out what size sprocket i would need for my bike.

i have a i have a 25/9 setup at the moment, and i would like to make it harder for me to pedal, by that i mean i higher gear.

i would not want to chage my cassette gearing (9) because i have only just ordered my new rear wheel, i jusy need too know why number of teeth on the front i need to make it a tiny bit harder to pedal.
for example would it make it harer tro pedal if i had a 30 t sprocket....so i would have 30/9
 
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