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Price
$314.99
SHIMANO Ultegra R8000 Mid-Cage Rear Derailleur โ€” image 1
Rear DerailleursSHIMANOโœ“ In stock

SHIMANO Ultegra R8000 Mid-Cage Rear Derailleur

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$314.99

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2 available
Size: M
Color: blackone
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About this item
  • Material: alloy
  • Capacity: [short] 35t, [long] 39t
  • Cassette range: [short] 11-30 t, [long] 11-34 t
  • Gear: Double
  • Compatibility: Shimano Ultegra R8000, Shimano Dura-Ace R9100
Product description

Product Description Shimano has used Shadow technology for years on their mountain bike rear derailleurs. Allows for a lower profile and places the derailleur further in, keeping them out of harm's way and allowing for better chain trajectory off the top jockey wheel relative to the cassette. Shimano's R9100 group is the first time we've seen this technology moved to the side of the road, and we're happy to see its inclusion in the Ultegra RD-R8000 rear derailleur. The RD-8000 is the crown jewel of the new Ultegra group, and if you're building or upgrading a bike, you really can't go wrong with this group. The extra range offered by the longer cage opens the Ultegra group to adventure bikes and brings precision, durability and value to the masses. Plus, if you just want to add a wider range to your Dura-Ace steed, adding the Ultegra Long Cage Derailleur and Cassette is all you need to spin perfect circles on long mountain passes. The shift is flawless, the durability is immaculate, and the performance gap with Dura-Ace is about the width margin of a tire in a sprint. Switching to an aluminum cage and a few other minor hardware details are all that separates the Ultegra R8000 version from the Dura-Ace 9100 drive. Two cage lengths are available with cassette ranges of 11-30t (short) and 11-34t (long). Given some design adjustments, the R8000 rear derailleur performs best when paired with R8000 or R9100 levers, and is a perfect match for a full Ultegra bike or those running Dura Ace who want to race a larger cassette. Another advantage of the Shadow design is the more linear trajectory of the derailleur when shifting, which allowed Shimano engineers to create a shift lever with a shorter shot, resulting in more precise and faster shifts, even with the larger cassette ranges we're starting to ride on everything from asphalt to gravel. We are pleased to see Shimano continue with a barrel adjuster on the derailleur. Road shifters do not have adjusters on the levers such as... Legal Disclaimer 2n1 -- m L**-------I---2009979s(021s-024s) 11/18 2009059 2/28S( 7 2ndsp(10 4/22sp(15 4/23ari 2009979s(021s 024s)=2009934(058-059)11/18 9/29:15eta 13122pre(20:2/29

Product details
Brand
SHIMANO
Manufacturer
Shimano
Material
Metal
Colour
blackone
Size
M
Weight
0.32 kg
Model number
Shimano
Part number
IRDR8000GS
EAN
0689228623163

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10 Trustpilot reviews total, with 2 shown at a time.

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Excellent
4.5 average rating
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Sigalit
๐Ÿ‡ฎ๐Ÿ‡ฑ ยท January 2026
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I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
๐Ÿ‡ฆ๐Ÿ‡บ ยท November 2025
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The package was here in Australia from England in a few days โ€” so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

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SHIMANO Ultegra R8000 Mid-Cage Rear Derailleur | Bigamart