You say little how steep, what hill?, how strong are you, what have you tried so far..

Math..
Rear cog T divides front chainring T .... example 20 cog 40 chainring is 1:2, 1 rotation of the crank turns the wheel twice.

then measure your wheel size .. inch diameter .. 2:1 x 27" = a 54" gear ..

that is the math, remember that from school?


A hill, like stairs have measurements ... distance traveled, elevation gained.. that too can be expressed as a ratio.

so how steep/ hilly, ? and what gear? have numbers to define them..






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