On Wednesday, August 8, 2018 at 8:06:45 AM UTC-4, Max Nosugar wrote:
Yeah it's hard when there's an inclined slope but can be tolerated on flats. What's the recommended gear size for both front and rear on this condition?

The late Sheldon Brown stated:

" Gain Inches Meters
52/19 Fixed 5.45 71.2 5.70 General road use
52/20 Free 4.90 64.1 5.13 Road...when I'm tired, or hilly areas.
42/30 Free 2.64 34.4 2.75 Off-road.

Gearing is a very personal matter, and it is difficult to give good specific recommendations for someone I haven't actually ridden with.

The best gearing for you depends on a large number of variables, including:

Your weight
Your strength
Your endurance
How far you'll be riding in a day
How hard you're willing to push
How much baggage you'll be carrying
The steepness of the terrain
The nature of the road (or off-road) surface

There is no magic formula for this, only experimentation will let you determine what gearing suits your needs.

You might find my online gear calculator useful for comparing with your present gearing. http://www.sheldonbrown.com/gear-calc.html

Generally, for street use, with a freewheel, I would recommend a gain ratio of around 5-5.3, for instance, a 42 tooth chainring with a 16 or 17 tooth sprocket."

Using Sheldon's gear calculator and his recommendation of a 5 5.3 gain ratio the rear cog when used with a 50 teeth chainring would be either 19 teeth = 5.2 gain ratio or 20 teeth = 4.9 gain ratio. I guess that's recommended so that one doesn't wreck their knees.

Hope this helps.

Cheers