Big to little chainring shifting help
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Big to little chainring shifting help
So I just changed out my chainrings from a 48 tooth big ring to a 52. I have an 11-36 in the rear I believe. I never shifted out of the big chainring on the old setup, but on bigger hills I feel the need now. What is the most efficient way to do this? Obviously when you are already in a lighter cog on the back then shift to the small up front, the resistance is way to light. Read a few thoughts on shifting both front and back at same time, or shifting the rear to a few gears tougher before changing the front. Anyways, seem like a few schools of thought. What is the most efficient when going back and forth between chainrings.
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Guessing that the small ring is 34t, it's going to be a big, clunky shift. If everything is adjusted well, shifting down one or two cogs at the same time will work.
Shifting to the small ring before the hill gets too steep may help,
Shifting to the small ring before the hill gets too steep may help,
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I have sometimes dropped my chain when shifting both, so I generally drop 2-3 cogs first then shift to the small ring (seems to happen more when the chain needs cleaning/relubing). How many cogs depends on how much smaller the small ring is, to turn the same cadence. On 53/39, for me it's usually 2. 50/34, it's 3.
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one of the beauties of Di2
is you can program it to do the jumps in the back automatically when you shift the front. or because Di2 shifts so fast manually i just do two quick taps on the rear shifter each time i know i'm going to shift down in the front. either works well. but alas that is Di2.
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So I just changed out my chainrings from a 48 tooth big ring to a 52. I have an 11-36 in the rear I believe. I never shifted out of the big chainring on the old setup, but on bigger hills I feel the need now. What is the most efficient way to do this? Obviously when you are already in a lighter cog on the back then shift to the small up front, the resistance is way to light. Read a few thoughts on shifting both front and back at same time, or shifting the rear to a few gears tougher before changing the front. Anyways, seem like a few schools of thought. What is the most efficient when going back and forth between chainrings.
Last edited by Litespud; 08-01-20 at 10:38 PM.