Bike Touring Gear Inches

Values for gear inches typically range from 18 very low gearing via 70 medium gearing to 125 very high gearing.

Bike touring gear inches.

On 700c x 38mm tires this gives you a low end of 19 8 gear inches and a top end of 119 8. Gear inches is one of several relative measures of bicycle gearing. Can a 1x. The lowest that bike will go is 25 3 gear inches.

Riding the gdmbr and even on the northern stretch of the natchez trace parkway i got down to 3 5mph on steeper climbs using 17 1 gear inches. 80 is green 50ish 80 blue and below 50 red. The higher the gear inch number the farther your bike can travel on one revolution of the crank. As in a car low gearing is for going up hills and high gearing is for going fast.

26 x 44 16 giving us 71 5 gear inches. The trek 520 updated for 2019 is about as modern as a classic touring bike can get. So we get 26 3 gear inches. Too high tech for you.

The higher the gear inches then the harder it will be to pedal. Gear inch comparisons across drivetrains. So if for example our straight gear ratio is 44 16 and the rear wheel has a standard overall diameter of 26 then the calculation would be. A mix of shimano alivio and sora the 520 has 48 36 26t chainrings mated to an 11 36t cassette.

We ve also been in that situation and yes we made the mistake of buying too many things. Given that touring triple cranksets 48 36 24. It has disc brakes an aluminum fork and yes a triple. The touring bike gearing has a greater range than that of a road set up as it includes a much lower set of gears to cope with the variety of terrain on a tour.

You don t want to miss anything. I do my calculations with sheldon brown s gear calculator. Colors group similar values. When you are using one of your front chainrings and shift to one of your rear cogs you are changing the gear inches of your rear wheel.

When planning your first tour on a bicycle it is very easy to go crazy about buying all sorts of bike touring gear for it. That isn t quite right since the 700cx42 tires are more like 28 in diameter. It s basically derived from a formula and provides an indication of the mechanical advantage of different gears. Here is the most technical aspect i am going hit you with about touring bicycle gearing.

Gear inches is gear ratio times the diameter of the rear wheel. There are many great resources out there explaining every piece of gear that is useful when traveling on your bicycle but not so many. That is a whopping 133 of the goal. Gear inches understanding your gear ratios.

The sturmey archer brompton bwr takes two sprockets but other models are included in the list for the benefit of tinkerers see discussion.