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A new era of e-gravel with the Exploro Racemax Boost

At 3T, we are very happy to introduce the new Exploro Racemax Boost today. In a crazy year full of ups and downs, getting this project across the finish line has been a company-wide effort.

Text by Gerard Vroomen , photos by Paolo Ciaberta -

The standard Exploro Racemax was introduced in 2020 to rave reviews for its light, responsive & fun ride. When it came time to make an e-bike version, we didn’t want to change anything: same geometry, same aero tube shapes, same agile steering.

​The result is a bike with a hidden boost: The Exploro Racemax Boost:

The Bike

We wanted to keep the fun and flow of a fast, agile gravel bike, not build a motorcycle with pedals. That means the system has to be very light, offer a very smooth power ramp-up & create no drag when turned off. In the end, 3T’s customized Mahle ebikemotion X-35 system offers all three.

Even better, it fits inside the Racemax frame without any change to the tube shapes! So the Boost frames come out of the same mold as the regular frames, just with a small insert for the toptube button.

With its very natural pedaling feel, this is an e-bike for true cyclists. You may even forget you are riding an e-bike and think “Wow, I have amazing legs today!” We achieve this through 3 specifically-tuned levels:

ECOA quick ramp-up and a small Boost across the speed range, perfect to keep up with the group when your legs need a bit of support.
MEDIOMore support at climbing speeds, making challenging trails easier to navigate and helping you stay with the group on paved & unpaved climbs.
TURBOMaximum Boost for the most challenging terrain with a super smooth ramp-up and continuing through the speed range.

The rider

The Exploro Racemax Boost is designed for 3 types of rides:

  1. The power support acts as a range extender for your adventures. The bigger the loop, the bigger the fun.
  2. Riding in a group of varying ability can be frustrating. With a little extra support, nobody ever has to wait up anymore. Perfect for road & off-road rides.
  3. Commuting. The power support enables you to arrive without a sweat and have an adventurous workout on the way home.

The end result

All of this makes the Racemax Boost the most versatile gravel bike ever, with a svelte road bike esthetic, gravel toughness and e-bike power for a wide variety of rides.

The Racemax Boost is available in a dropbar version for ultimate speed and a flatbar version for ultimate control. The dropbar version even comes in an incredible 9.8 kg Ultralight version with a full-on gravel setup. All models are available to order now from 3T retailers and 3T.bike and start shipping between May and September.

The dropbar version even comes in an incredible 9.8 kg Ultralight version with SRAM Red, 3T Torno crank, Discus 45|40 wheels and Panaracer GravelKing SK tires. All models are available to order now from 3T retailers and this website and start shipping between May and September.

More info on the Racemax Boost Dropbar 

More info on the Racemax Boost Flatbar

Other posts - See all

Comments & Questions


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16 responses to “A new era of e-gravel with the Exploro Racemax Boost”

  1. G

    Gerard Vroomen says:

    14 April 2022

    20mph

    Reply
    1. T

      Tom Martin says:

      14 April 2022

      Thanks. I understand that this is kind of a Mahle-standard thing. It is unfortunate that only the Specialized legal department really seems to understand that Class 3 is important to road riders. It is also odd that the option to toggle between Class 1 and Class 3 is so rare. As you have said many times, a lot of us ride on the road to get to the gravel. 20 mph is just a bit low to stay with the group on many roads. In any event, love the Boost. Glad you built it.

      Reply
      1. G

        Gerard Vroomen says:

        15 April 2022

        It’s not that just Specialized understands it, it’s that they have blocked all others from getting the 28mph Mahle motor until 2024.

        Reply
        1. T

          Tom Martin says:

          15 April 2022

          Well, dang, that is sadly unsportsmanlike. But, OTOH, if they paid for development of that motor (?) I can kind of see their POV. Oh well, still love your bikes! And your blog is so far ahead of any other brand it is embarrassing. For them.

          Reply
          1. G

            Gerard Vroomen says:

            15 April 2022

            If, then I would too. 🙂 Anyway, when you’re big, you can use that size. Nothing wrong with that.

            Reply
  2. N

    NewWheels says:

    27 June 2021

    Is the battery removable via a hidden removable plate near the bottom bracket or some other mechanism?

    Also, is it possible to attach a pannier rack to hold bags? That would be perfect for commuting.

    Reply
    1. G

      Gerard Vroomen says:

      27 June 2021

      Yes, the charge port can be removed and reveals the access to the downtube. But you never really take it out, it’s not like with a heavy city bike that you don’t want to carry. Here you can bring your whole bike in just as easily.

      “traditional” panniers is not really something it’s designed for, more bike packing bags or something like a Tailfin if you want to hang the bag similarly to a traditional pannier.

      Reply
      1. N

        NewWheels says:

        27 June 2021

        Thanks for the quick reply. I was thinking about replacing the battery when it inevitably degrades. Great to know this is possible.

        I understand that for some the recent addition of a mudguard is already considered sacrilege. However, if the bike is to be used for commuting, it is essential to be able to carry a laptop. Sadly, I’ve found that most laptops do not fit standard bike packing bags. I’ll have a look at the tailfin.

        Reply
        1. G

          Gerard Vroomen says:

          27 June 2021

          Not sacrilege to me!

          Reply
  3. S

    SAM says:

    02 June 2021

    a better choice in music(especially to these 70 year old ears and brain)

    Reply
  4. M

    Michael says:

    22 May 2021

    Sad there is no glossy black paint with grey 3T logo from first Exploro there.

    Reply
    1. H

      Helmut says:

      23 May 2021

      Black would be great! But at least a version with SRAM Force AXS instead of SRAM Red+Torno, in front of my house on 15th June 2021 to take it into vacation for this summer season. This would be an instant buy.

      Reply
      1. G

        Gerard Vroomen says:

        24 May 2021

        I don’t think anything in the bike industry will happen by June 15.

        Reply
  5. F

    Fernando Chissotti says:

    21 May 2021

    Hi, I’m interested in Exploro racemax boost, living in Canary Islands, any dealer near here? Thanking in advance

    Reply
    1. G

      Gerard Vroomen says:

      21 May 2021

      Napa Collective in Las Palmas de Gran Canaria: https://www.3t.bike/en/dealer-locator?useraddress=Las+Palmas+de+Gran+Canaria%2C+Spain

      Reply
  6. M

    Maciej says:

    19 May 2021

    I’m waiting for a variant with 650b wheels. 🙂

    Reply