You can always count on Shimano to quietly release a bunch of other products on the heels of a big launch. The new 12 speed Deore M6100 group will likely get the majority of the attention, followed by the easy-to-upgrade-to Deore M5100 & M4100 groups, but behind the scenes there are a number of new additions to almost every product level to check out.

Shimano adds MTB flat mount brakes, new XTR cranks, e-bike batteries with 25% more juice, new Alivio, more

Flat mount brakes for mountain bikes? Yup. While it’s still not super common, there are a growing number of XC race mountain bikes that have started using the flat mount standard like the BH Ultimate EVO. Others include the Canyon Lux, Mondraker Chrono & Podium RR, Kross Earth, and Cannondale FSi. If you’re riding a mountain bike with Shimano SLX, XT, or XTR, you don’t want to have to run a 105, Ultegra, Dura Ace, or GRX brake caliper, so now Shimano is offering flat mount calipers to match those mountain bike groups.

The two piston calipers can run resin or metal pads, with or without the Ice Tech cooling fins. Note that the XTR caliper can only run 140 or 160mm rotors, while the XT and SLX versions can run up to 180mm rotors.

Shimano adds MTB flat mount brakes, new XTR cranks, e-bike batteries with 25% more juice, new Alivio, more

Shimano adds MTB flat mount brakes, new XTR cranks, e-bike batteries with 25% more juice, new Alivio, more

New XTR Cranks for Wide Tires + Cranks for Days

Shimano has added even more 12 speed cranksets to their line up, bringing the running total to 22 different 12 speed crankset options. That breaks down into 14 1×12 cranks (three XTR, DEORE XT, SLX, and DEORE, plus two non-series options), and 10 2×12 cranksets (two XTR, DEORE XT, SLX, plus two non-series options).

New to the mix is an XTR crank meant for 157mm Super Boost Bikes with a 56.5mm chainline. The FC-M9130-1 is a 1×12 crank with a 171mm q-factor thanks to the narrow crank arms. Also, a 2×12 Deore level crankset has been added with 26/36t chainrings. The FC-MT610-2/B2 is meant for bikes with 142/148mm rear spacing and comes in 170 & 175mm crank arm lengths.

Shimano adds MTB flat mount brakes, new XTR cranks, e-bike batteries with 25% more juice, new Alivio, more

Alivio 2 x 9 or 3 x 9

The 12 speed, or even 11 and 10 speed groups are usually the most exciting, but there are a lot more bikes sold with more affordable drivetrains. Shimano is known for offering a wide range of components, and often improves those more affordable options with borrowed tech from previous high end models. That’s what’s going on here as both the Alivio and Tourney groups have been updated.

The Alivio M3100 group now offers 2×9 or 3×9 drivetrain options with new shifters and derailleurs.

Shimano adds MTB flat mount brakes, new XTR cranks, e-bike batteries with 25% more juice, new Alivio, more Shimano adds MTB flat mount brakes, new XTR cranks, e-bike batteries with 25% more juice, new Alivio, more Shimano adds MTB flat mount brakes, new XTR cranks, e-bike batteries with 25% more juice, new Alivio, more

You’ll find a Shadow rear derailleur, HG shifting, and Rapidfire Plus Mono shifters to give the group a high end feel, while also dropping the price.

 

Shimano adds MTB flat mount brakes, new XTR cranks, e-bike batteries with 25% more juice, new Alivio, more Shimano adds MTB flat mount brakes, new XTR cranks, e-bike batteries with 25% more juice, new Alivio, more Shimano adds MTB flat mount brakes, new XTR cranks, e-bike batteries with 25% more juice, new Alivio, more

Updated Tourney 3 x 7 and 3 x 6 Drivetrains

At the Tourney level, you’ll find 3×7 and 3×6 drivetrains with new Revoshift twist shifters and new derailleurs with SIS index shifting.

Shimano adds MTB flat mount brakes, new XTR cranks, e-bike batteries with 25% more juice, new Alivio, more

The group also includes new freewheels with improved corrosion resistance and wide gear combinations up to 14-34. Remember when 34t for a high end mountain bike cassette was a big deal? ‘Member?

Shimano adds MTB flat mount brakes, new XTR cranks, e-bike batteries with 25% more juice, new Alivio, more

New 12 speed Wheels

Adding to the options for complete wheelsets, the WH-MT601 is a Micro Spline version of the WH-MT600. Available in 27.5 or 29″ tubeless rims, the hubs include options for 142mm or Boost 148mm thru axle hubs.

Shimano adds MTB flat mount brakes, new XTR cranks, e-bike batteries with 25% more juice, new Alivio, more Shimano adds MTB flat mount brakes, new XTR cranks, e-bike batteries with 25% more juice, new Alivio, more

New STEPS Additions

Want to ride further on a single charge? The new battery additions for Shimano STEPS will help you get there. The internal BT-E8306 is now Shimano’s largest e-bike battery with a 630Wh capacity. There is also the BT-E8035L which uses the same battery dimensions, but offers 504Wh capacity and a faster 4 hour charge time. The two options give frame manufacturers and consumers the ability to run different battery capacities in the same frame.

For external use, the BT-E8016 provides the same massive 630Wh capacity with a new fitting port and BM-E8016 battery mount.

Now Shimano has 10 different batteries to choose from including rear carrier, external type, and downtube integrated options with 418, 504, or 630Wh capacities.

Shimano adds MTB flat mount brakes, new XTR cranks, e-bike batteries with 25% more juice, new Alivio, more

Urban e-bikes get a new SC-E5000 computer display that is also able to control lights and operate the assist modes. Compatible with existing STEPS systems, the display will come standard on 2021 e-bikes later this year.

Shimano adds MTB flat mount brakes, new XTR cranks, e-bike batteries with 25% more juice, new Alivio, more

Finally, Shimano is expanding their STEPS e-bike tire capabilities with the new 12 speed SM-CRE80-12-SB chainring meant for 157mm Super Boost rear hubs. The wider chainline allows the chain to clear the rear tire, and is available in 34 or 36t options with Dynamic Chain Engagement+ tooth profiles.

bike.shimano.com

17 COMMENTS

  1. Shadow+ RD should’ve come to Alivio by now.
    MegaRange has been on Tourney for a while now. An 11- or 12-34 would’ve been nice.

    • There are freewheel designs that accommodate smaller sprockets, but I don’t think the current Shimano design does. You can see in the pictures that the tooth valley is near the diameter of the body. They made one previously, but that model is discontinued.

      Who cares about small sprockets on a freewheel? If you need smaller, upgrade your wheel. Better support, and many more gearing options.

  2. I wonder how (if at all) those flat mount calipers differ from their road counterparts. If they’re better in dirt, they’d be great for CX bikes.

    • Shimano stated in their M9100 release they do not see a need for 12 speed XTR/XT Di2 due to the improved shifting of the new HG+ design.

      I would expect (hope) Shimano will at least release an XTR/GRX clutched Di2 12-speed rear derailleur capable of handling their 10/50 cassette. They need something to compete with the SRAM AXS “mullet” 1×12 group for gravel and adventure.

      Shimano could then apply a firmware update to the current XTR Di2 11 speed rear shifter and range of drop bar Di2 shifters. Seems like low hanging fruit to have a solution for 1×12 Di2. Most wheelsets now have the option to change to a microspline freehub plus are quite a few HG+ chainrings, both round and oval, available in the aftermarket now. Adding a GRX HG+ range of chainrings would be a logical addition.

      I’m ready to switch my GRX Di2 1×11 and 2×11 gravel groupsets to Di2 1×12. Let’s go Shimano!!

        • If/when wireless becomes a better option than their bombproof wires, which is probably never. Enjoy your slower wireless shifting!

      • Slammy: the number of shift points and distance per shift is probably baked into the derailleur, so I highly doubt that you could turn an 11sp derailleur into 12sp via firmware update. The levers are just switches, so they could work 12sp…unless Shimano decided to block that thru firmware. Would Shimano do that? Yes, they would…and have (my condolences to 10sp Di2 users).

        • by firmware no, if the new Dura-ace is wireless or semi-wireless (rumours) I’m afraid there will be no compatibility with the current 11-speed Di2 groups, unless Shimano adds some “gadget” that makes it possible

  3. Customers asked, the bike industry listened!

    Fiddly calipers to make it more to make it more expensive to buy a new frame? I’ll take mine with Super Boost Plus spacing please.

  4. Wow, I hate flatmount. Please stop using the rear
    flatmount style that runs the the bolts through the frame. It’s absolutely brutal adjusting theses and frame brands can’t built them worth a dam!

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