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 Post subject: Thumb Shifters
PostPosted: Tue Apr 23, 2019 1:14 am 
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friendly kitty

Joined: Wed Nov 13, 2013 11:38 pm
Posts: 398
Location: Indiana
Not mine, but a member of the local group has some 10 speed thumb shifters for sale.

http://www.hmba.org/smf/index.php?topic=15539.0


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 Post subject: Re: Thumb Shifters
PostPosted: Wed Apr 24, 2019 10:04 pm 
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bad kitty!
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Oh, I didn't even know they existed in a 10 sp version.

Do you know what they are intended for?


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 Post subject: Re: Thumb Shifters
PostPosted: Wed Apr 24, 2019 10:37 pm 
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friendly kitty

Joined: Wed Nov 13, 2013 11:38 pm
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Location: Indiana
The pic looks to be for a flat bar. 10 speed Shimano. I'll ask for other details and post up what I hear back.


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 Post subject: Re: Thumb Shifters
PostPosted: Thu Apr 25, 2019 6:39 pm 
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friendly kitty

Joined: Wed Nov 13, 2013 11:38 pm
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Location: Indiana
They are flat bar thumb shifters for Shimano MTB derailleurs. Little to no wear on them.
I didn't ask if he went semi retro grouch then didn't like it. You should be able to dump a lot of gear quicker than with the trigger shifters. I usually see him at trail work sessions, but I don't recall seeing them on a bike he was riding.


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 Post subject: Re: Thumb Shifters
PostPosted: Thu Apr 25, 2019 10:18 pm 
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bad kitty!
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Hmm, strange. I searched a bit, and everybody used such for retro stuff, but 10sp is hardly retro territory.

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 Post subject: Re: Thumb Shifters
PostPosted: Fri Apr 26, 2019 12:31 am 
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friendly kitty

Joined: Wed Nov 13, 2013 11:38 pm
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Location: Indiana
Modern retro maybe? Keep the look of your older MTB and have an 11-42 cassette instead of 12-28!
I know you could trim out the chatter of the chain on the front derailleur with thumb levers or grip shift.


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 Post subject: Re: Thumb Shifters
PostPosted: Fri Apr 26, 2019 9:52 am 
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bad kitty!
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That could be an option. I was just wondering what MicroShift had intended, when they designed them in the first place.
Could be a fat bike thing, for extreme conditions?

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 Post subject: Re: Thumb Shifters
PostPosted: Fri Apr 26, 2019 3:44 pm 
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friendly kitty

Joined: Wed Nov 13, 2013 11:38 pm
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Location: Indiana
The fat bike and extreme conditions would be times when one would want simple components. Mechanical disks are another thing riders often use in those cases.

I will say the newer Shimano rear derailleurs pack with snow on the part where the cable is secured and it will stop them from going full range. Had about 8 bikes that came in the shop with that problem.


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 Post subject: Re: Thumb Shifters
PostPosted: Fri Apr 26, 2019 7:04 pm 
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bad kitty!
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So retro Shimano for the win?
I exclusively use 9sp Shimano, and have never seen such issues.
The 950-XTR and the 7700 Dura Ace are hard to beat in my humble opinion.


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 Post subject: Re: Thumb Shifters
PostPosted: Fri Apr 26, 2019 10:15 pm 
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friendly kitty

Joined: Wed Nov 13, 2013 11:38 pm
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Location: Indiana
I think XT and XTR are less likely as the arm where the cable attaches is flat, where SLX and lower are shaped like a scoop. Wet, rotting leaves mixed with mud will do them in easier than snow but once iced up it takes more effort to clear unless you have a place to let it melt.

On the Shimao stuff from the past few years the 550 series brakes are great for the price point. Sort of the Deore level caliper with an XT shaped lever. It looked like they were only offered OEM.
Some Shimano clutch derailleurs needed the tension lowered or they would shift hard. Older 8 speed XT or LX is great.


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 Post subject: Re: Thumb Shifters
PostPosted: Sat Apr 27, 2019 9:25 am 
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bad kitty!
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That's in alignment with my experience, counting out the 550 series, which I've never stumbled upon.


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