Again, different strokes for different folks — literally — but I’ll share what I’ve found. To me, when bikepacking, that magical number falls around 19 gear inches or under — specifically for a mountain bike destined for steep terrain and trails. This number differs on a gravel bike as there is usually less tire resistance and … See more Naturally it’s different for everyone. The likes of Jay Petervary and Josh Katomight not require the same granny gear as a skinny guy with bird … See more To start, let’s talk a little bit about the system of measurement. Gear inchesis one of several relative measures of bicycle gearing. It’s basically … See more Note that the wheel diameter in the above equation isn’t really the rim diameter; it’s the actual diameter of the mounted and inflated tire. Of course they are always different, and while … See more WebMar 13, 2010 · A 28T chain-ring x 32T gear with a 700 x 38c (27 5/8” O.D.) tire yields 24.17 gear inches (my current granny gear setup). A 26T chain-ring x 32T gear with a 700 x 38c tire equals 22.44 gear inches. A 28T chin-ring x 34T gear with a 700 x 38c tire yields 22.75 gear inches. A 26T chain-ring x 34T gear with a 700 x 38c tire equals 21.125 gear ...
Gearing for loaded touring - Cycletourer Website
WebAssuming that your rear deraliur is Deore, you'll almost certainly be ok with a 36 on the rear, which will put you at 19.5 gear inches, which as u/TorontoRider says is about as low as you can get without falling off. Average gradient is only important if your gearing is miles off, but your gearing is pretty low, so the times you'll struggle is the amount you'll meet a difficult … WebGear inches and metres of development are closely related: to convert from gear inches to metres of development, multiply by 0.08 (more exactly: 0.0798, or precisely: 0.0254π). ... The small chainring (granny gear) is a … how to draw a 2d sphere
Chainring - Granny, 74mm bcd, Crmo steel – …
WebIn my current 24/28 lowest gear ratio, it moves the bike 5.8 feet per crank rotation. If I change to a Shimano MegaRange MF-TZ31 7 speed freewheel (a fairly simple upgrade I should be able to do myself and the freewheel + tool to remove/install it total should be about $25), it will give me 4.8 feet per crank rotation. WebColors group similar values. 80+ is green, 50ish-80, blue, and below 50, red. WebJul 19, 2015 · Gear-Inches. Gear-inch is the oldest measurement still used. It's also the most intuitive, once you know where it comes from. Where it comes from is itself kind of cool, because gear-inches are a relic of the transition from high-wheelers (the old "penny farthings" or "ordinaries") to the modern safety bicycle. leather pro keds sneakers