Can a 1x.
Bike touring gear inches.
You don t want to miss anything.
Values for gear inches typically range from 18 very low gearing via 70 medium gearing to 125 very high gearing.
Gear inch comparisons across drivetrains.
That isn t quite right since the 700cx42 tires are more like 28 in diameter.
Gear inches is one of several relative measures of bicycle gearing.
So we get 26 3 gear inches.
The sram sachs 3 x 7 3 x 8 3 x 9 3 x 10 and the sturmey archer cs rf3 and cs rk3 are the only recent current production internal gear hubs designed to use rear sprocket clusters.
That is a whopping 133 of the goal.
We ve also been in that situation and yes we made the mistake of buying too many things.
80 is green 50ish 80 blue and below 50 red.
On a touring bike 18 is a great low gear and 113 is a good high gear.
It has disc brakes an aluminum fork and yes a triple.
As in a car low gearing is for going up hills and high gearing is for going fast.
What are gear inches.
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.
The trek 520 updated for 2019 is about as modern as a classic touring bike can get.
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.
Too high tech for you.
Here is the most technical aspect i am going hit you with about touring bicycle gearing.
I do my calculations with sheldon brown s gear calculator.
Given that touring triple cranksets 48 36 24.
The higher the gear inches then the harder it will be to pedal.
A mix of shimano alivio and sora the 520 has 48 36 26t chainrings mated to an 11 36t cassette.
26 x 44 16 giving us 71 5 gear inches.
Colors group similar values.
The lowest that bike will go is 25 3 gear inches.
The sturmey archer brompton bwr takes two sprockets but other models are included in the list for the benefit of tinkerers see discussion.
It s basically derived from a formula and provides an indication of the mechanical advantage of different gears.
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.
There are many great resources out there explaining every piece of gear that is useful when traveling on your bicycle but not so many.
Gear inches understanding your gear ratios.
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.
The higher the gear inch number the farther your bike can travel on one revolution of the crank.
