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Description
Shimano Ultegra Di2 R8170 Shifter ST-R8170High performance Ultegra wireless hydraulic servo wave disc brake Di2 sti's give you control, modulation and power with minimal effort in all riding conditions wireless connectivity to the front and rear derailleurs for effortless trouble free gear shifts with Di2 technology shifting is easy and precise just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gear full and semi
- High performance Ultegra wireless hydraulic servo wave disc brake Di2 sti's give you control, modulation and power with minimal effort in all riding conditions
- wireless connectivity to the front and rear derailleurs for effortless trouble free gear shifts
- with Di2 technology shifting is easy and precise - just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gear
- full and semi synchronized shifting programable, synchro shift compatible meaning a single shifter can control both front and rear shifting which can be fully custom tuned to your riding preferences. Semi synchronized shifting means when a front shift is made the rear mech will automatically correct to the appropriate ratio
- simply pressing tactile buttons allows effortless and comfortable shifting even when your hands are cold
- drop bar sti with shift buttons located in a near identical place to the positions you'd assume shifting using a mechanical Shimano sti
- hydraulic brake lever with servo wave provides excellent stopping power with less effort especially from the hood position
- hydraulic reservoir tank provides pad to rotor clearance auto-adjust maintaining braking performance during pad wear
- finely tuneable reach adjusters for the levers enable custom fitment for all hands
- levers use cr1632 batteries which last for approximately 1.5-2 years
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4.4 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
OH YEAH!👍🏻
Format: Kindle
I love to swim and this book was fantastic! Hope you have fun reading it to. My favorite character was Bree by the way
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
★★★★★ 5
Good for Raina Telgemeir fans
Format: Paperback
My 10-14 year olds loved this book. It’s a great story. They also really liked the Raina Telgemeir books.
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Reviewed in the United States on October 19, 2025
★★★★★ 4
3.5
Format: Kindle
A decent read, it wrestles a bit with a couple of different topics of anxiety, racism, family dynamics, sports, and friendship in fits and bursts. I guess my main critique was it felt a bit shallow (no pun intended) with most issues resolved rather quickly and easily once characters put their minds to it. The Hollyhoke's team also seemed to be pretty toxic making it a wonder why someone would want to go there other than that it's wealthy.
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Reviewed in the United States on July 28, 2023
★★★★★ 5
I really enjoyed this book of short stories
Format: Paperback
I loved this book. It was the first time
I ever read anything by Simone De Beauvoir.
It is difficult but I think the title story
was my favorite, watching the character go
down hill so rapidly and in such detail
showing her growing obession was oddly
relatable, her self hatred towards her body
towards the end of the story
I would not try and presume to state what the
"moral" of the story was... but that is exactly what I am
going to do about now
check it....................
I think that the main Character should have
developed a concept of self outside her marriage
her marriage was her identity and when that fell
apart she had nothing...no sense of self
it was a compelling read a little uncomfortable
but I like being a littel uncomfortable when I read............
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Reviewed in the United States on September 5, 2013
★★★★★ 4
Middle-aged women in crisis
Format: Paperback
Excellent writing, but rather depressing (but perhaps accurate?).
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Reviewed in the United States on May 21, 2026