The most in depth analysis , my respect to you sir I got more than what I was looking for and then some! This is what sets people apart, knowledge! Thank you! For sharing it.
Reason for viewing this video I recently purchased a vintage Colnago C40 with Dura Ace group set then a friend pointed out that a Campagnolo set should be more appropriate for such a bike, I don't mind either way I bought it for the art in it but his comment got me thinking, your video helped me on my decision Thank's!
I enjoyed your video but you completely missed talking about the outer chainring compatibility. I have a project where I'd like to install a 54T FC-R9200 chainring on a FC-R7100 crankset. I've been searching for an answer and coming up blank...
Correct, my video specifically was regarding weight comparison. I could pull off the cranksets on the bikes and make a chainring compatibility video in the future.
This was handy to see as I am looking to see if swapping out a 7000 105 for a used dura ace crank is worth it - thanks for taking all your crap apart for us. Lol.
ultegra is only 30 grams lighter than 105. I highly recommand ditching the ultegra cranks and go with the 105 cranks because how often Ultegra+ fail at the glued junctions. 105 is constructed from a single piece of aluminum so it won't seperate like Ultegra and Dura Ace cranks.
I agree... the 105 seems to be a more durable entity, and I swear they are more rigid. I use 16mm pedal extenders, and I fee the flex in the Ultegra cranks, but not the 105. I decided to sell my collection of Ultegra and DA crankset. I bought extra 11sp for the next decade.
It's really hard to spend 600 (DA) or 320 (Ultegra) over 120 euros to only save a few grams. I can even replace the whole 105 crankset 3 to 5 times if it wore out sooner than the high end ones :/
You're right, I don't notice my Dura Ace being more stiff or feel the weight penalty of the 105. There are other upgrades you can really feel the difference, like a better saddle, better grips, nice clothing or something else.
Right strange question but I have a 6800 crankset and recently bought a 4iiii single side power meter on a 9100 left crank arm. I ran this combo and it seemed ok, then took it off until the weather improves. my question is in regards to the 0.6mm q factor difference where is this q factor change derived. axle or is it the flare of the cranks themselves. seems to me like i might have 0.3mm narower on left hand side of bike if its from the flare of the crank... Any idea??
@@pedalpowercycling Thanks for reply. I was looking into a pedal washer to even it out they are 0.8mm I realised that the diffrence is pointless small and I should just forget about it :)
I took a look at the chain rings and the bolt pattern is similar between 105 ultegra and dura ace. Although they should be interchangeable, I'm not sure if the rings are compatible. It depends how far each chain ring sits from each other and that determines if you get clean shifts. That's a great idea for another video in the future. Thanks
No they aren't compatible because the R7000 crank has a small angled part where the chainring fits on the crank, just on one of the arms, so it will only take R7000 R8000 or R9100 rings, but not 5800 6800 or 9000 rings.
Could you run an 11 speed crankset with a 10 speed cassette and chain? I’d like to see the differences between the 11 speed crankset and a 10 speed one.
You can but I'd recommend an 11 speed chain even when using a 10 speed cassette. This is my setup: 10 speed di2 with 11s dura ace crankset. 11s dura ace chain.
Great video, thanks very much for sharing! I am currently running a Shimano 105 r7000 crankset. I am looking to upgrade my large chainring from a 53 tooth to 55 tooth. Do you think a 55 tooth Shimano Dura-Ace 9000 chainring would be compatible with my existing r7000 crankset? Thanks!
Looks like minimal weight difference, and with the delamination issues that dura ace and ultegra face, you're better off with 105. Anyway, that's not where the tech is. That's more on the deraileurs, brakes etc... so keep your money for those.
@@pedalpowercycling Just upgraded my bike to Di2 and I agree with you! Live changer. Now, when they figure out to get rid of the front derailleur altogether but still give you as many gears (or range) will be next level! Check out what Classified is doing with their Powershift hub.
My video was specifically regarding the weight differences. They're very similar in stiffness. I can't tell the difference in stiffness from each other. You may need a pro rider or some specialized equipment to determine stiffness.
