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New Shimano 105 Groupset – Detailed & Demoed

New Shimano 105 Groupset – Detailed & Demoed


– In spring of 2018 Shimano
announced a complete overhaul of their super-popular
workhorse groupset 105. And seeing as it’s now
cropping up all over 2019 bikes both in the shops and on the internet Shimano kindly sent us a full groupset so we could talk you
through it’s finer points. Oh and go for a ride. The top line points to note is you’ve got 11 sprockets at the back and two up front giving you 22 gears. The new groupset has two break options, disc break and rim break. And two finish options, silver or the black that we have here. You can choose from an array
of super wide gear options, even down to a lowest gear of 34/34. And the redesign improves the ergonomics, particularly for smaller riders or those with small hands
are gonna be super excited because there is a smaller
lever option as well. Now we’ve got hands on the R7020 version. Which as you can see is the
hydraulic disc break one. R7000 is the rim break version. Now this is officially the first time that disk breaks have
popped up at 105 level although there has been a disk option at a similar price point, just without the 105 logos on. But it’s with good reason because it’s fair to say I think that Shimano don’t take sticking a logo on something lightly. They’re very particular about what they call groupset integration. And so they waited to design it altogether from the ground up. As they have done with
it’s bigger brothers, Ultegra and Dura Ace, before it. And I think it’s a good thing that this one has come out third because as we all hoped some of the features from
those more expensive groupsets have now trickled down on to 105. Starting up here with the breaks. Now there is a reduced
shifter body diameter there, so that affectively means it
feels a little bit smaller in your hands. I think that gives you a
more secure grip on the bike as well as actually
reducing fatigue as well. Now in order to fit all
the hydraulics inside Shimano have kinda extended
the lever forwards and up a little bit more than
they have on Dura Ace. But it’s been shaped quite ergonomically, so it kind of functions as
an additional hand position. As well as the smaller diameter being great for people with smaller hands there is also reach adjust on there so you dial in a little screw and that actually brings the
lever closer to your handlebar. I mean essential for
people with smaller hands. In addition to that
there is also, of course, the aforementioned
alternative lever option. So it’s called R7025, as opposed to R7020. Remember that I’ll be
testing you on it later on. Now on it the lever blade has actually been angled
closer towards the handlebars bringing it in by that four
millimeters Shimano say. So another real bonus for
people with small hands. The disk rotors are available
in 160 and 140 mil diameters for smaller, again,
perfect for smaller riders. Larger riders will want to go for 160’s just because of reduced heat
build up on long descents. Although, as far as I’m aware, all those early fears
about heat and break faith haven’t ever materialized
with road disk breaks. These also, once we think about with heat have got those thinned Ice-Tach pads that we’ve seen before
on Ultegra and Dura Ace. What they don’t have is the large cooling fins on the rotors that Ultegra and Dura Ace have. But they do still share
that same triple layer with an aluminum core design. Now in use, well what can
be said about disk brakes that hasn’t been said before? You get more power of course. Although that’s kinda not the point. You get more modulation
which gives you more control. And as we’re sort of
getting towards winter as you can see, their ability in poor conditions really makes them stand
out, certainly for me. The durability is a big one. Down at the caliper
you’ll see it’s flat mount and in terms of the rotors we don’t actually have the
new 105 ones on these wheels. These are the older style
Shimano disk rotors. Away from the breaks there have been loads of
other wholesale changes from the previous version of 105. The new rear mech has been designed using Shimano’s Shadow technology. This means that the derailleur
has a much lower profile and it’s tucked underneath
the rear cassette. It’s actually the first
opportunity for Shimano to design their 105
mech in the Shadow style and it brings it in line with their Ultegra and
Dura Ace groupsets as well. It means that it’s better
protected against knocks. You know the ones where you
lean your bike up at a cafe and you see it falling over as you sit drinking your flat white. And it also apparently
makes it a little bit easier to put the back wheel in and out. The derailleur comes in
two cage length options. The longer of which will
fit an 11 to 34 cassette which we’ve got here. Now moving forward to the front derailleur that has been completely redesigned. It’s now got that toggle-cam design that we first saw on Dura Ace, we’ve also see now on Ultegra. A few different advantages to that, firstly it actually
reduces the amount of force that you need to move the shift lever up at the handlebars there. Then you also get
increased tire clearance. So great if you’re running
it on a gravel bike. And then finally, for the first time, there is a cable tension adjustment bolt which means that you don’t actually need a barrel adjuster somewhere
else on your cable routing. Which is great in my book cause often those barrel adjusters have always seized on my bikes. As well as the derailleur making the shift feel
lighter at the handlebars the actual internals of the
shifters have also been changed. Shimano say that they’ve
now reduced the leaver throw so what effect, well that means is that
you don’t have to move the levers as far to actuate a shift. Now visually perhaps I think the crankset is the most important part of a groupset. And in this case the 105 clearly shares the same silhouette as it’s more expensive
brothers, Dura Ace and Ultegra. You’ve got that asymmetric
four bolt pattern. Now not just looks
though with this redesign it shed 30 grams. And although we can’t really
give any performance claims about it Shimano don’t
make any about stiffness and so forth, given that it does share so much DNA with Dura Ace you would
expect it to be pretty beefy. Now in use it certainly feels like that although it’d be impossible to give you any meaningful feedback given
you can’t really separate stiffness of frame from
crank, from pedals, from tires, from, well you get the picture. Now interestingly, for about four of you, the pitch of the chainring has also been changed much
like an Ultegra and Dura Ace and although that doesn’t change the performance of the groupset what it does do is allow bike manufacturers to actually design their frames
a little bit differently. You can have shorter chainstays, which you wouldn’t want on every bike, but you would want on really nice, racy,
snappy feeling bikes. Now whilst we’re sticking with chainrings I did notice that the big ring here is really beefed up with loads of kind of
supporting fins on the inside. Because I guess a stiffer front chainring is a good thing particularly for crisp, smooth shifts. Now lastly the pedals on this bike are my eight year old Ultegra ones. But actually the new 105 pedals have changed quite significantly. They’re 20 grams lighter. They’ve also got a lower stack height. So what that would mean is you could drop you
saddle ever so slightly putting you weight lower on the bike which is excellent for fun cornering. Now what about that all
important weight then? Well we haven’t put our
a particular groupset on the scales but apparently all in a 105 groupset is 2,489 grams. Which probably doesn’t
tell you a great deal but if I put into context and say that Ultegra is
just a 174 grams lighter, then you’ll see that there
isn’t much of a difference there at all. And actually when I say the old 105 and old Ultegra were
separated by 370 grams then you’ll see that it’s
some pretty good news that the gap between
the two is coming down. Now in performance terms it’s pretty hard to compare this to Ultegra and Dura Ace but we are gonna give it a try. We’ve got a video coming out shortly which is 105 versus Dura Ace. So stay tuned to that. There’ll be some blind testing going on. Oh yes! I don’t know quite how
that’s going to work, but there we go. Please give this video a big thumbs up if you like what you see. And also get involved in the comments. What do you think about the new 105? Is everything that you wanted
to see here on this groupset? Let us know. I’d be very interested to
read what you have to say. If you want to see a video about the Ultegra groupset versus Dura Ace that Lloydie made a couple of months back then you can get through to that one by clicking on screen now.

100 comments on “New Shimano 105 Groupset – Detailed & Demoed

  1. Have they ever done a bike ckeck on the Orbea Si's riding? It looks pretty sweet and seems to have tire clearance for days.

  2. Best value for the money, specially for riders that can only afford a "jack of all trade bike"…..yours truly included. Look forward to upgrading my Tiagra groupset to the 105!!!

  3. I would love triple front chainrings! More speeds is better. Who cares if that is "in" or not. It has been 15 years ago, why not now?

  4. I personally don’t get 105. All it is is an 11 speed tiagra or sora. I ride sora on my every day bike and it has plenty of gears to make me happy. It also cost $400 less than the 105 version. Unless you run a 32 cassette, which it seems most people don’t, 10 speed is really all you need. And Tiagra costs less.

  5. If you dont want to go Di2, there is really not much of a point spending the extra money for ultegra anymore. very nice groupset.

  6. 105 is all you need. No need for Dura-Ace or even Ultegra. Unless you're eyeing the DI2, then get an Ultegra DI2.

    I tried Ultegra on my pals bike, and Dura-Ace on another, went back to my 105 bike. The difference is negligible. OK, maybe the brakes feels better on the Dura-Ace. But that 's it. Shifting wise, it's the same dang thing (all 3 bikes recently overhauled).

    Spend the extra money on some nice kit instead. Or bike maintenance.

  7. Excellent review and a very nice offering from out of Sakai. As a professional bike fitter, I am glad Shimano finally have something suitable for the many who have small hands and struggle to reach the levers. Even the current Ultgera and DA series I need to adjust to the max for closeness and it is not enough. I will be recommending the 7025 shifters to many of my clients. And while here it is time for the parts manufacturers to build and bike companies to put 165 cranks on their S and XS sized frames

  8. I bought the allez sprint comp 2018 and was very disappointed it didn't bring this group set. So I decided to get it. Ill be putting it on after the winter!!!

  9. the shimano abandoned all people like me who ride the touring bikes and small wheels foldables and BXRs. for a touring bike this new group is a joke, why not offer a semi hyrdaulic caliper like TRP and many chineses like do?11-34 limit again? no way shimano i valorize my legs. i run 3×10 with your "out of specs" 11-40 cassette.

  10. I upgraded to 105 r7000 from Sora a month ago. I love it! I don't race, I just like to ride with friends and enjoy a week long fundraiser once a year so I wanted a workhorse with good performance that wouldn't break my bank. This was it in spades. I went with the widest range possible so I can swap out wheels and get on the gravel and I've had a blast. Good on you Shimano

  11. Drivetrain without oval chainrings is useless 😉 I prefere my custom stainless steel groupset https://dgtzuqphqg23d.cloudfront.net/rK9gBzjGV-CwLkG4ste72DJqNoEavfwZDwZZCF6-nvU-2048×1152.jpg 😀

  12. Thinking of fitting silver105 to my resprayed classic steel Daccordi frame (was top-of-the-range Dura Ace originally) – what d'ya think?
    William

  13. Shimano 105 is and always has been the best option for novice racers. I'm a DA user because I'm older and have money now (I'm a former Cat. 2 who used to race on Campy Chorus), but, if I'm being honest with myself, unless you're a pro and/or you're good enough to get bikes for free, 105 is all you need. To new racers I say: Cycling is bad for peer pressure, but don't fall for it; 105 is great, and you want to be the kind of rider that is more "go" than "show" anyhow. When you're fast enough you'll be able to get Ultegra or DA at a shop or team discount, if not for free. Train smart, stay safe and good luck!

  14. 105 is all I will ever use. Dollar for dollar nothing beats it. I can buy 3 105/ultegra cassettes to one dura ace…no thanks.

  15. Couldn’t agree more. Shimano is definitely missing out by not having sub compact options. I’m in the process of changing out a 105 compact with a 46/30 subcompact on my gravel bike and am also building up a new bike for light touring with a 46/30 sub compact….Neither of which will be Shimano.
    Dick Thomson

  16. A new groups set is the least necessary bike purchase. So little bang for your buck. Am I the only one who is only interested in new components because the older ones go on clearance?

  17. Never thought I'd see the day that GCN used an old beater to demo new kit! Look at all that chipped paint at 00:32 and 00:37!

  18. Having always used 105 last year I specced up to 6800 Ultegra and I have been amazed at the difference but that said seems I should of waited for this group set. If only my pension would stretch to Durace

  19. 6:54 “the pitch of the chainrings has also been changed”.
    Careful there, pitch in chainrings is the distance between the teeth, that hasn’t changed ever. It’s still 1/2 inch, as the chain is. I didn’t get what you guys meant, awesome video otherwise.

  20. After riding for years a steel bike with really old Sora stuff, I bought and built up and aluminum Giant frame with Tiagra 4700 gruppo. It’s my first time ever riding modern parts and I can say I’m totally satisfied with the performance!
    Maybe next year I will jump into ultegra and MAYBE di2 as well, I’m curious to see if there’s much difference between mid range and top range gruppos.

  21. There is no free lunch. Reduce the force required and you need to pull more cable for the same work done. To then keep the same lever throw you need to reduce the mechanical advantage at the lever which will increase the force required to operate it….The only way to reduce the lever force and keep the throw the same is to use a lighter spring (which of course has drawbacks) or reduce friction in the system. But then people want ‘hidden’ (under bar tape) shift cables and internal routing, which adds friction and offers no benefit. The bike industry makes you want to bang your head against the wall!

  22. And if you need even lower gearing or looking towards 1×11, R7000 GS rear derailleur easily handles 11-40 cassette 😉

  23. How much of this review system is sponsored? Claims of no bias? Studies of human nature shows that even free gifts causes gratitude and beholdens recipients with any morality in their soul. It is basic human nature and used by marketers. That said the reviews are excellent and expert and I'm grateful to watch them for free on you tube so I'm gonna buy a 105 for no other reason. Haha.

  24. I was looking at upgrading to the new Ultegra groupset on my summer bike until I saw this…..I'll stick with a new 105! Couple of hundred quid extra for 174gms saving…..105 all the way

  25. Seized barrel adjusters, Simon? Try hitting them with some wd-40 or a good wet lube whenever you lube the chain or clean your bike. You ought to know that!

  26. 105, has always been one of my favorite group sets.
    I’ve gone to a full Ultegra set up so, I won’t be going back. But, I put 1000’s of miles on the 105 parts and they are certainly worth the investment.

    Maybe, when I get a new BIKE I’ll go to 105 for the group set. (:

  27. One of the reasons Shimano has taken over almost all of the road bike groupset market, is products like 105. Good enough for professional racing at an affordable cost. Really wish Campy could ever design a similar product (i.e. good and cheap)

  28. I have been using 105 for ever, I will be looking forward to buying a new bike with this group set next year, 34 /34 will make easy work of massive hill.

  29. Would like to know the bike model and set up on this bike or what would it cost to buy this same bike. I like the set up

  30. I am an Ebike rider (new rider) but recently, I've had the urge to buy road bike. Probably a very silly question, can you install a 2x 11-50 cassette on a road bike or easier to to leave it at 1x 11-50 like mtb? Regards

  31. Got the old 5700 with discs on my Roadmachine, have been waiting for this upgrade 2 years now (branded 105 hydro discs). I would however advise disc-curious buyers to stay away from the 3-layer ice discs and finned pads – they vibrate too much and make a racket!

  32. I just got the 105 G/S (rim brake) On a Cdale CAAD12. I absolutely LOVE it. I can't speak for the crankset because the CAAD12 comes with CDales proprietary SI crank.

  33. Looks better than my Ultegra 6800 groupset. Except for the disc brakes of course. Still hate them on a road bike. Call me an old fart.

  34. Can I get it now? Or will I have to wait for 2019 edition bikes to come out.
    PS:- That's a bloody awesome surrounding, truly wallpaper worthy.

  35. anyone else having trouble putting their rear wheel in and out with the new shadow style rear derailleur? I can't seem to figure out how to smoothly remove the rear wheel, chain is on big ring upfront and 11th on the cassette.

  36. Just ordered a full 105 5800 groupset to upgrade my 2006 Fuji Roubaix. 53/39 x 11/30. I am so excited to put this on my bike.

  37. This guys only talk shit,how many Shimano and others brands pay you for this shit,ride more and less talk,fucking freaks

  38. I have a 2015 Focus Mares AX 2.0 with the full 105 groupset and Disc Brakes. Granted, it's cyclocross not a dedicated roady

  39. Just picked up a great deal on my R7000 groupset with BB for $500 CAD (£290) then the pedals for $90 CAD!! You can find amazing deals for this groupset

  40. I've been riding my 2008 Stevens road bike with a Tiagra group for 5 years now and I'm going to switch to a modern road bike and the Shimano 105 R7000 will be my choice.

  41. I've recently put this on my bike. Brilliant. Until… the left shifter stops working. Many complaints online about it. In fact, so well known that when you call shimano and mention "shifter", they respond with "we'll send you a left hand shifter" without asking you which side has the issue. Otherwise, it's all good in the hood.

  42. Hi GCN im wondering how to shift a shimano 105 because I have a trek Èmonda al5 disc with a 105 groupset and i am new to road biking because i was a bmx kid somi dont know how to shift because a bmx bike has only one gear i had the trek Èmonda for only a week but i did not used it yet because I don’t know how to shift a 105 can you help with that?

  43. Please can you compare the whole Shimano range? Claris to Dura-Ace. I'm an occasional commuter (twice a week), I don't race and I don't have loads of money to spend on the best components so I need to decide if I need to spend the extra couple of hundred pounds on 105 or if Tiagra would be everything I need

  44. I have an old 2007, I think, Diamondback Podium 2 with a 9 gear 105 set. It shifts very nicely. Since I am strictly a magnetic trainer rider its probably more than I need. It work well when I street rode.

  45. Tried this group set on a giant tcr. Totally useless. Chain is rubbing on the front cage constantly cant even use half of the gears it's not 22 speed at all max of 14 available gears without ear plugs due to constant chain noise. I fact the chain is loud even when dead straight. Also rear mech doesn't always engage the gear 100% find yourself between gears so you have to go down and back up again to engage. The trim function is a joke moves about .5 of a mm. This is a paid for add for shimano not an honest review. Avoid 105.

  46. @1:33 This frame looks remarkably similar to the one on my Scott Metrix 10 Disc (a great bike). Question: Do all companies source from the same Chinese manufacturer for their lower price carbon frames, and is it therefore only possible for them to make slight variations upon a fixed mold?

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