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Really Stupid Question : STI Shifters

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Really Stupid Question : STI Shifters

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Old 11-30-17, 07:15 PM
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kcblair
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Really Stupid Question : STI Shifters

This was my first year using "Brifters" and converted 2 bikes. My newest bike came with Shimano STI shifters.

Question: Why does the little shifter position indicator, move the opposite direction as the derailleurs move ? IN others words, when the chain is on the upper cog (low gear), the indicator is to the far right (indicating the small cog). (I'm discussing Claris 8 speed)

I find this confusing. And why didn't Shmano put numbers on these shifters ? Thanks for any explanations. KB
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Old 11-30-17, 07:18 PM
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Not sure about claris, but my old tiagra bike the lowest gear is on the left. I would guess no numbers because they would be too small to read while you're riding safely.
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Old 11-30-17, 07:52 PM
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Originally Posted by evan326 View Post
Not sure about claris, but my old tiagra bike the lowest gear is on the left. I would guess no numbers because they would be too small to read while you're riding safely.
Thanks, My Claris, is the opposite, HIgh gear on the left, Low gear on the right. The indicator moves the opposite direction of the chain, as it moves across the cassette. KB
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Old 11-30-17, 08:00 PM
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Originally Posted by kcblair View Post
Thanks, My Claris, is the opposite, HIgh gear on the left, Low gear on the right. The indicator moves the opposite direction of the chain, as it moves across the cassette. KB
Mine move this way. Never thought of it as right or wrong, but got use to it quickly enough.
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Old 11-30-17, 08:35 PM
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Could this be because either the derailleur or the shifter is "high-normal" and the other component is "low-normal"?
See Sheldon Brown here (scroll down to "Low-normal vs High(Top)-normal"): Bicycle Rear Derailleurs from Harris Cyclery
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Old 12-01-17, 07:29 AM
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You could cover the indicator window with tape or fingernail polish. Most shifters don't have numbers.
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Old 12-01-17, 10:13 AM
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The "pointer" is attached to the shift (brake) lever/spool such that when you shift to a lower gear (wrapping cable onto the spool), you are moving the bottom of the brake (shift) lever to the left. The pointer, being attached to the lever, but viewed from above the pivot point, will swing to the right. Thus the movement of the pointer will be opposite the chain movement on the rear cogs.




Same thing for the front brifter/derailleur. Swing the shifter right, and the pointer moves left (or opposite the movement of the chain). Shimano could add tiny gear wheels inside the brifter so the pointer moves in the "correct" direction, but this would needlessly further complicate what is already a complicated component.
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Old 12-01-17, 10:21 AM
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Originally Posted by kcblair View Post
This was my first year using "Brifters" and converted 2 bikes. My newest bike came with Shimano STI shifters.

Question: Why does the little shifter position indicator, move the opposite direction as the derailleurs move ? IN others words, when the chain is on the upper cog (low gear), the indicator is to the far right (indicating the small cog). (I'm discussing Claris 8 speed)

I find this confusing. And why didn't Shmano put numbers on these shifters ? Thanks for any explanations. KB
Actually , this has always bothered me. And you bet I don't think a stupid question. Shimano indicators are backwards.
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Old 12-01-17, 10:58 AM
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Y'all need to ride in places with scenery that's better than the shift indicators on your bikes!
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Old 12-01-17, 11:23 AM
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Originally Posted by sweeks View Post
Could this be because either the derailleur or the shifter is "high-normal" and the other component is "low-normal"?
See Sheldon Brown here (scroll down to "Low-normal vs High(Top)-normal"): Bicycle Rear Derailleurs from Harris Cyclery
Steve
Yep, that's what I'm going to do. KB
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Old 12-01-17, 11:24 AM
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Originally Posted by kevindsingleton View Post
Y'all need to ride in places with scenery that's better than the shift indicators on your bikes!
That's what I did for the whole season. Now that I'm inside, time to ask questions. KB
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Old 12-01-17, 11:27 AM
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Another idea, with time to kill this winter, maybe I'll try and create a little decal with numbers, to place over the indicator window, before I just cover it. KB
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Old 12-01-17, 11:31 AM
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Originally Posted by sweeks View Post
Could this be because either the derailleur or the shifter is "high-normal" and the other component is "low-normal"?
See Sheldon Brown here (scroll down to "Low-normal vs High(Top)-normal"): Bicycle Rear Derailleurs from Harris Cyclery
Steve
Thanks Steve, that just confused the crap out of my 70 year old mind.KB
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Old 12-01-17, 04:35 PM
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i stopped looking at my gear indicator along time ago i just use telepathy to send and echo location signal to my derailleur and compare it to the phase of the moon at high tide and it tells me exactly what gear im in , i also run a 30 ring cog so some where between 24 and 11 gear it causes a nitro boost and the fast and furious theme plays and i drop the world ...
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Old 12-01-17, 04:44 PM
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Originally Posted by kcblair View Post
Thanks Steve, that just confused the crap out of my 70 year old mind.KB
Happy to help... I'm only 3 years behind you, and it confuses me too!
Steve
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Old 12-01-17, 04:48 PM
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Originally Posted by kevindsingleton View Post
Y'all need to ride in places with scenery that's better than the shift indicators on your bikes!
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Old 12-02-17, 07:18 PM
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Gear indicators serve only one purpose - to annoy and confuse people.
Ignore the thing. Sooner or later, you'll go to a higher level system which doesn't have the indicators, and you won't even notice. [/grouch]
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