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Shimano Ultegra R8100 Di2 12 Speed RIM Brake Groupset


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Shimano Ultegra R8100 Di2 12 Speed RIM Brake Groupset

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Shimano Ultegra R8100 Di2 12 Speed RIM Brake Groupset


It’s time to find out what really matters.

The freedom of the open road, crisp mornings and fiery sunsets. Laughter filling the air and then trailing off. Nature, unfolding as you roll. Breathtaking vistas that stop you in your tracks.

Coffee stops and camaraderie. Route prep and weather checks. Rain breaks and sunny bursts. Mad dashes. Racing each other to the top. And then kicking back.Tuning into tranquillity. And shifting into oneness.

The Science of Speed, Shimano’s design philosophy for its latest road groups, is comprised of five elements: a new Di2 platform, a refined interface, the addition of HYPERGLIDE+, a category redefining brake system, and a collection of new wheels. Here’s a quick rundown on how each of them contributes to faster, more efficient road riding.


New Di2 dual control levers feature dramatic, all-new ergonomics and act as the command center. Both DURA-ACE and ULTEGRA levers have a longer, slightly curved hood body for a more comfortable and secure grip. Shift buttons are easier to reach and differentiate with extended switches and an increased offset between them. With better access and faster shifting, you’ll always find yourself in the right gear.


The backbone of these two new groupsets is the game-changing HYPERGLIDE+ shifting technology. First introduced on Shimano mountain bike groups, this unique chain-and-cassette interface smoothly guides the chain up and down the cassette for fast and precise shifting in both directions, even under extreme pedaling load.

Ultegra R8100 Di2 Groupset Kit consists of…

STI Lever set


Rear Derailleur 

Front Derailleur 

Brake Callipers (Standard or Direct Mount)


Charge Cable

Di2 Wires

Please note kit is not inclusive of bottom bracket due to the vast number of variations

If you wish to add a bottom bracket to your order they can be viewed HERE

Want your new groupset fitted? We have you covered! CLICK HERE to see the options!

Crank Length

160mm, 165mm, 170mm, 172.5mm, 175mm

Chainring Size

50/34, 52/36

Cassette Size

11-30t, 11-34t

Front Brake

Standard, Direct Mount

Rear Brake

Standard, Direct Mount


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Shimano Ultegra R8100 Di2 12 Speed RIM Brake GroupsetShimano Ultegra R8100 Di2 12 Speed RIM Brake Groupset
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