Shimano 105 Di2 Vs Dura-Ace: What’s The Difference?

What groupset do you have on your bike?

Changed out my Ultegra 12sp 52-36 for a Dura-Ace 50-34.hoping to shed some weight. Those 38 grams were so not worth it. Ultegra is the sweet spot.

It’s 2023. Shimano is not even innovating at all

I don’t agree with not being able to tell… I had the Shimano 105 cassette (As was recommended by my local bike shop) on my Ultegra groupset and very recently upgraded to the Ultegra one with hyperglide+ and the change is night and day…

Seriously, no-one needs this overpriced, fragile shit. A wire gear change system is about as simple a mechanical system as is possible to devise.

is the servo wave worth to get in ultegra than 105 that doesnt have it?

Thanks for your video, but now the price Di2 105 is rapidly down to below 1000$, it is the best group for Ammateur now.

If 630g is 0.7% then why am I falling for the carbon spacer, titanium bolt con..?

105 , 3000g 1900e , ultegra 2700g 2800e, dura ace 2500g 3800e.. 1000e each 200g less 😢 i take 105

My great aunty Muriel had one bike all her life with a 3 speed stumey archer, got her to the bus depot during WW2 when she worked on the busses and then to work, the seaside at the weekend for fish and chips and back for the rest of her life. Will either of these goupsets last 50 years of daily use I wonder?

except the 105 cassette, there are not much difference between da and 105, the 105 cassette is really heavy and da cassette shifts more smoothly than 105.

Why do I still want Dura Ace? 😂

I have Ultegra di2 on my summer bike and 105 di2 on my winter bike. The main difference I feel is when I change the front chainring. A bit clunkier on 105. Love them both though.

Hi, 105 di2 working with Shimano Shimano Dura Ace Di2 Sw-r9150?

If you have money to burn, NP. Unless you’re a pro racing, not needed. Lose a few pounds and you’re good to go. We’re talking grams of difference in terms of weight. JMHO

Does the ultegra 12 speed front mech be use for upgrade from 105?

I’ll be on my R7000 105 for a sling time

I would prefer if Shimano would still sell a mechanical version of the Dura Ace groupset… Electronic groupsets make bikes way more expensive, as the prices are minimum doubled! So my choice is still the mechanical Ultegra groupset combined with Dura Ace disks. This is saving the (toxic) batteries, weight and money.

Is the 105 aluminum. I want to get one and strip that black finish off it. If Shimano won't produce a silver polished crankset, I'll make my own.

Looking at the Di2 front mechs, I was wondering whether anyone had considered an aerodynamic faring over it? It looks like a fair chunk of plastic sitting in the airstream. Of course, it's insignificant compared with the body of the cyclist I guess, and it's all within the flow broken by the front wheel, cranks and rider's leg, the but it still looks ugly to me when the mechanical mech has much less substance.

Disk at 0.25 is XTR.

Recently bought myself a Cube Agree 105 di2 for 2899,-. The Ultegra di2 version was 700,- euros more expensive which was a no brainer for me

The real question is whether mechanical shifts faster than di2 105.

You call it trickle down tech, I call it trickle up price.

It is not IF, but WHEN your brakes rub.

I test road a Trek Domane+SLR6 last week with 105Di2. It was very smooth

The chinese company Ltwoo presented a hydrolic mechanical road groupset last week. Its about 70% cheaper than Shimano DuraAce. End of the day it's all about the sport and the adventure and 30g heavier groupset than 105 its not a problem for me. High rated shimano groupsets are for the Pro cyclists. For me the best is riding for the pleasure and health and not thinking about expensive parts and few grams and few seconds difference. This is just an opinion.
😉

Would there be any SRAM components video coming soon? Interested in that

It’s that 25 seconds that made me get the Dura Ace Di2 9270 groupset 😅

From the 105 groupset only the rear deraileur is interesting, because of the extra capacity (11-36 cassette). For the other parts Ultegra is just slightly more expensive but are much nicer in my opinion. Now I'm looking forward what the 12 speed GRX DI2 has to offer.

Now the groupsets of the dentists and lawyers, the bike industry is laughing at the consumer at the moment.

Alumiñum

I see more people on claris and lower than i see on 105 or higher

105 r7000, can’t be beaten for my needs

I think I'll stick with Tiagra and an upgraded crank.

Should do 105 vs Ultegra - “only” £800 difference, so more of a real world choice.

Still running mechanical here, and will for the foreseeable future!

I'm a musician. I showed up to an open mic/open jam with my BEST guitar that cost tons of money. It's an impressive instrument. I played pretty well. The next guitarist up came with a TERRIBLE, cheap, beat up guitar ...and he played so well that I looked like a beginner compared to him. There I was, the guy with deep pockets but not a ton of ability. I'd rather be on mechanical 105 looking fast than on di2 whatever and not performing as well as my bike might suggest. The cooler option is the stealthy option.

The unit of mass is gram, "g" for short (not "G").

Shimano killed Ultegra

What would be a great topic to look into is what is the what is most value for money on cassette, brake disk and pad, chain. I have the ultegra and read somewhere that shimano said that the best component to upgrade is the chain. I will test that out, does it shift better like they claimed and is at as or more durable. I would like to know that for other components especially for the brakes, is it just weight ar does it also perform better.

So I was listening along here in America while also working on something else. I heard "there's a whopping difference... 2000 pounds to be precise" and I had to go back and listen. For a second I thought you'd bungled the weight difference... that would be a huge difference!
Honestly, 2000 pound sterling difference from Dura Ace to 105 is not nearly as big a jump as it used to be. Back in the day, Ultegra to Dura Ace was almost that big a jump for a whole throughset.

WOW, how many times has that Orbea with 105 dropped its chain? Look at the frame damage through the chainring.

Alex, I'm looking to go to 160mm crank arms and I currently have r8000 11 speed 170mm crank arms (with pf86 bb). Would the new 12 speed r8100 160mm option work with the 11 speed ultegra? Shimano don't recommend it but what's the reason?

Same comparison for SRAM please

Alex hanging around with Ollie has turned him into a bit of a professor.
Once he lets his hair grow out and has a big floppy fringe, there will be no way of telling them apart.