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  • ZigaK

    The mannequin tester is the future.

  • Michael Sproul

    Kinda want…but those paintjobs are rank and that front wheel messes with my mojo. They should have a matching front as an option.

    • Dave Rome

      While it’ll add to the bike’s cost, matching 65mm front wheels can be bought separately.

      I personally agree with Giant’s decision, it makes the bike that touch more versatile. The mullet is back!

  • Lee Turner

    Looks fantastic and what a stunning paintjob / finish from Giant 10/10

  • Velt

    The Propel Advanced looks the best. Overall a thoroughly modern bike, props to giant.

    They should really release that aerodynamic data between all the frames though.

    • Dave Rome

      I’ll check with Giant if they will share it.

      • Any other competitors tested? BMC?

        • Dave Rome

          Just Trek, Specialized and Canyon.

          • donncha

            No S5? Seems odd not to include it.

            • Dave Rome

              Seemed odd to me too and I asked the same question. Giant claimed they only tested their “key competitors”.

      • Dave Rome

        Ok, so they haven’t shared competitive data. Andrew Juskaitis just reiterated that the best bikes tested were so close it was within the tolerance of the wind tunnel. So basically breaking even in an aero sense.

        • tanhalt

          That’s a BS response. Be transparent with the data AND the testing configurations. Without that, anything they say is just spin…

          edit: Alternatively, it may also mean the “tunnel tolerance” isn’t too good…and judging by the apparent high degree of test section blockage shown at higher yaw angles, that’s probably not a bad assumption

          • Dave Rome

            Giant quoted the tunnel tolerance at +/- 1 watt. Take that as you will. :)

            • tanhalt

              Well…even that is pretty ambiguous. At what air speed and air density?
              Tunnels don’t measure watts, they measure drag force…and the BEST way to report results is in terms of CdA (not grams, not watts…since both require OTHER information to be meaningful). That takes all the ambiguity out.

              • Dave Rome

                Yep, agreed. Similar questions were raised and Xavier did say they use CdA to analyse results. When asked about controlling temperature, air density, etc – Xavier said he has his own proprietary formulas for his wind tunnel, he wouldn’t disclose what these entailed. Though he did simply say, “Aerodynamics is an experimental science”.

                To give you a little more info on the tunnel, the internal testing area is 10 m/sq. So while cycling fits, car testing (such as Australian V8s or formerly F1) was/is done with scale models.

  • Lieblingsleguan

    Very very small correction: Ultegra 8050 is Di2 with rim brakes. 8020 is mechanical with hydraulic disc brakes.
    And those STIs are still ugly as hell… The discs themselves never bothered me but those huge brifters are a problem for me. 9170 and 8070 are the very first disc groupsets that I like in terms of looks.

    • James Huang

      Thanks for the note. I’ve made the correction, and will give Dave Rome a thorough flogging when I see him tomorrow.

    • Mitch

      And an extra very small correction *R80xx *R91xx

  • Tommy Vercetti

    There was only one thing to do right : color schemes. But no,they decided to have their entire design department smoke weed and come out with these monstrosities. And about disc only option it will backfire at them like when they decided to ditch the 29ers mtb completely few years ago, only to bring them back in 2016. I love my TCR Pro disc anyway,best road bike I’ve ever owned.

    • jimborawson

      When did they ditch 29ers? XTC, Anthem, Talon, Revel…..all in the line up for years.

      • Tommy Vercetti

        My market ( Italy) only had those bikes in 27.5 from 2014 till 2016,bad move.

      • Andrew O’Neill

        They stopped producing the top of the line Anthem and a few other models in a 29 in 2015. Told everyone that 27.5 was the future and all their eggs were in that basket… Ooops.

  • winkybiker

    Is that just plastic fairing on top of, and behind the stem?

  • jstevez

    What’s the fastest bike? Whatever bike Kittel, Cav, Sagan, or Michael Matthews ride.

  • Hansel

    For those who actually race, the idea of disc brake bike is pretty bad. Getting neutral wheels will be next to impossible. Rim brakes for the foreseeable future. Its a shame that Giant and all these manufactures just cater to rich club riders. But I do suppose thats how they make their money. But why not just 1 rim brake?

    • Lieblingsleguan

      To be fair, Dan Martin had a similar issue with getting a neutral rim brake wheel at the TdF after being hit by Porte. He said, he had next to no braking with the Mavic wheel he got and crashed a second time, so he had to wait for his teamcar. I assume this might have to do with the fact that he rode on wide Roval wheels and got a narrow Mavic wheel as a spare.

      • Hansel

        I am not talking about pro teams. I am talking about elite amateurs and amateur racing. But even at PRT races here in the US, if your team is not well sponsored, you have to rely on neutral support. So if you race on a disc brake bike and get a flat, you are out of the race. Simple as that.

        • Robert Merkel

          Anything below NRS in Australia, you get a flat and you’re pretty much out of the race.

          Some stage races have a spares car, but even if you get a spare wheel the odds of you chasing back on without the aid of a convoy and/or Ian Stannard and Vasili Kiriyenka towing you back are minimal.

          (Guess who had a flat racing this weekend…)

        • Sunny Ape

          If the neutral, non-disc wheel is the same axle width / type, then you could still use it to complete the race… you just can’t brake with it. If you were on a stage where only mild braking was required, the disc on the other wheel will probably provide enough stopping power by itself.

          • Hansel

            That sounds pretty frightening. I will just stick with my rim brake bike for the foreseeable future!

    • fignon’s barber

      Where I race, “neutral service” means you put your spare wheels in their truck that follows the race.

  • bryan

    Giant just got on my radar for my next bike. I can’t find one thing I don’t like about the bike. Very Nice Job

  • Andrew

    Boy is it ever ugly!…. and another review called it harsh…. I’ll pass. Hopefully Trek comes out with a cheaper version of the Madone soon!

    • Dave Rome

      Try get yourself a ride on one. While it’s obviously a bike for the sprinters (it’s no couch), it’s certainly not as harsh as the frame profiles would lead you to believe.

    • Bahrd

      Could a 28mm rear tire improve comfort without affecting the aerodynamics?

  • tanhalt

    Where’s the actual aero data?

    Oh…and by the looks of that tunnel section, “Holy blockage effects, Batman!” ;-)

  • Daniel

    The first Propel’s braking system was so flawed most people that bought one was forced to buy an after market replacement if the wished to stop in any hurry, this is more likley the reason they have gone to disc only. Anybody who watched the TDF would of noticed what type of bike Matthews was winning on, it wasnt a Propel, fairly sure if he was worried about wheel changes they could of got him an old rim brake frame. That in itself is all the proof I need to dispel the marketing dept’s aero claims.

    • Lieblingsleguan

      He wasn’t using the old propel either. So, it is probably not just wheel changes but the fact that he likes how he gets on with the TCR. At Orica, he was using the Foil most of the time, so he isn’t against aero bikes per se, he probably just uses whichever bike of his sponsor feels best for him.

    • The Rabbit

      They should have used that in their marketing for the original Propel: 300% faster under brakes than its nearest competitors

  • Robert Merkel

    Having raced the Propel as a weekend warrior for a couple of years, it sounds like they have fixed the major issues with the original – the brakes, a bit of nervousness in crosswinds, and a ride that was on the stiff side.

    The decision to go with tubeless is interesting. Do they have rolling resistance data on the Giant tyres, and what other options for fast and grippy race tyres do you have if you don’t like their proprietary ones?

    • Schwalbe Tubeless One are very nice and quite close to supple race tyres like Corsa, Veloflex etc. Or, ditch the tubeless valves and run tubes and the clinchers that you know and love.

  • BRK

    Interesting… apparently there’s benefits in having aero helmet, handle bars, seat post, forks, wheels, cable system, frame, clothing and even computer mount… but you can whack a lump of a thing on the side of both wheels and the bike is still ‘aero’…

    • Sunny Ape

      As the Giant guy said “it was discovered that the front tyre, rim, spokes and then fork blade are already creating enough “dirty air” that the addition of a disc rotor and caliper has a negligible effect on drag”

      • tanhalt

        Show me the analysis/data…

  • Wily_Quixote

    The blue one is fetching.
    I wonder how it’ll go with panniers and upturned bars on it as my next commuter bike?

  • velocite

    I’m guessing that the bike drives the dummy?

    • Andy B


  • lqdedison

    Yeah…not a fan. I will say it does look fast and very clean, that I like, but I can’t get past the color schemes though, just awful.

    Not to mention what has happened with prices of bikes in the last few years? Almost $4k for an Ultegra bike? Ouch.

  • Disco Volante

    First Giant since MCR I actually like

  • David Alexander

    Lovely bike. Yet another I’ll never fit, though. Perhaps one day someone will build an aero model without mega-long reach.

  • Andy B

    are the top tubes/reach short on a propel?

  • Ssanchez

    That is one fugly bike.

  • Cliff Nichols

    Yeah. Nice looking bike, not crazy about the colourschemes – tho’ that’s an easy fix. One thing that strikes me is the the carefully selected science in the marketing claims which sounds so compelling but which is at total odds to other manufacturers own selected data. Must admit (as a Madone 9 owner) that I was shocked to see where it placed in Giant’s study….and then bemused when I looked at Trek’s own extensive white paper on the Madone’s wind tunnel and overall performance tests (not v. the new Propel obviously but v. the rest of the set). How do we as punters stand a chance? Thankfully I bought my bike because I fell in love with looking at it and then riding it so all the rest is rather extraneous. That said the discrepancies across claims is disconcerting.

  • dllm

    “However, the brake pistons don’t always fully retract after using them
    and you’re left with the whisper of a rubbing disc. It’s not enough to
    slow the wheel, but is an annoying sound to hear. A quick tap of the
    brake was typically enough to solve the issue.”

    I used ST-RS685 x BR-RS785 (later changed to BR-RS805) and got this issue as well on both calipers.

  • Dale C

    What is the reason behind the giant spike on the stem pointed at the rider’s chest? Completely ruins the look of the bike, in the opinion of me and my riding buddies.

    • Dave Rome


      Agreed on the aesthetics though.


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