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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4
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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
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Very attractive and good fit
Size: X-Large, Color: White
My son loves it!
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Reviewed in the United States on April 24, 2026
★★★★★ 5
Well made Shirt
Size: Large, Color: Black
Thick, soft to the body, true to size and very comfortable. This top is well made and its pattern lends to be dress up or casual vibe
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Reviewed in the United States on January 4, 2026
★★★★★ 5
You won't be sorry.
Size: X-Large, Color: Army Green
My husband loves this shirt. Really likes the material and the fit. Just ordered 2 more.
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Reviewed in the United States on March 12, 2026
★★★★★ 5
Great value
Size: X-Large, Color: White
Excellent fit. Great value and very comfortable.
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Reviewed in the United States on December 29, 2025
★★★★★ 5
Men's Mock Turtleneck T-shirt
Size: Medium, Color: White
I'm happy with the shirt, it was as advertised. Thanks for the fast service
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Reviewed in the United States on February 21, 2026