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Bosch Announces New Motor: Smaller, Lighter, More Efficient

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Bosch Announces New Motor: Smaller, Lighter, More Efficient

Old 05-27-19, 09:45 PM
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radroad
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Bosch Announces New Motor: Smaller, Lighter, More Efficient

After a long wait and many rumours, here is the new 2020 motor from Bosch.


  • 2.9KG (down from 4KG in the old Performance CX line)
  • Regular chainring (no small sprocket like the outgoing model)
  • New chassis
  • Almost all resistance removed after motor cut off
  • All new 600Wh power tube battery
Spotted first on the French website Le Marché Du Vélo there area also some rumours that Bosch have developed a Bluetooth suspension integration, allowing the rider to change all of the suspension settings via the Bosch Nyon display.

edit: this new system will also have built in anti-theft GPS

https://www.emtbforums.com/here-is-the-new-2020-bosch-motor/











Last edited by radroad; 05-27-19 at 09:50 PM.
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Old 05-27-19, 10:33 PM
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ColonelSanders
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Very good.
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Old 05-28-19, 12:56 AM
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Step in the right direction, but it only means the weight of OEM bikes will go from 48 - 58 (or so) pounds to 46 - 56 (or so) pounds.
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Old 05-31-19, 01:29 AM
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Originally Posted by 2old View Post
Step in the right direction, but it only means the weight of OEM bikes will go from 48 - 58 (or so) pounds to 46 - 56 (or so) pounds.
Yep, if they could get the whole shebang down to something like 30-35 pounds ( bike, motor, battery and accessories ) , now that would be worth swooning over.
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Old 05-31-19, 09:28 AM
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Eventually it will happen. I built a sub 35 pound 2000 GT Zaskar with lots of light parts that I already had (carbon Ritchey fork, titanium seatpost, DT 240 wheels etc) and a 10 pound BBS02, 3.5 pound Luna 52V - 6 ah battery. Will be sub 30 when a lighter DIY mid-drive is available.
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Old 06-04-19, 08:54 PM
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Motor is likely to be lot more efficient than CX combined with 600wh battery, would be close to same range as CX with 700wh battery. Good enough for full day of MTBing without need use eco 90% of time.
A 600wh powerpack maybe bit much to ask for they can't change physical size as needs to be interchangeable with 400 and 500wh versions.

Hopefully there is option adjust power settings via phone app.

Expect there to be Performanceline (63nm) replacement along with 45kmhr speed version.

I'm not expecting much change from current CX 75nm, which is more than enough for most eMTBing and enough to match Shimano E8000 which has been eating into CX market share.

Still large market for current CX drive especially in cargo ebike market which it dominates and entry level MTBs. Saves manufacturers designing expensive new frames.
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Old 06-04-19, 11:10 PM
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Originally Posted by 2old View Post
Eventually it will happen. I built a sub 35 pound 2000 GT Zaskar with lots of light parts that I already had (carbon Ritchey fork, titanium seatpost, DT 240 wheels etc) and a 10 pound BBS02, 3.5 pound Luna 52V - 6 ah battery. Will be sub 30 when a lighter DIY mid-drive is available.
Battery weight is the issue here. And i see companies have vision of making range longer rather than making bikes lighter. So even battery technology progress for certain time we won't see such major weight drops
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Old 06-05-19, 05:39 AM
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Newbie question but is it only for e-mtb or also for electra townie or tern kind of e-bikes too ?
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Old 06-05-19, 09:33 AM
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Originally Posted by maria.owenby View Post
Battery weight is the issue here. And i see companies have vision of making range longer rather than making bikes lighter. So even battery technology progress for certain time we won't see such major weight drops
We'll need to see what the marketing hype dictates; maybe more companies will go on the "two smaller batteries" bandwagon (use just one for shorter rides, two for longer). My LeBS, Luna Cycle, can't seem to keep their 52V, 6 ah, 3.5 pound batteries in stock. I used one to assemble a light mid-drive.
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Old 06-09-19, 01:57 PM
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I wonder when Riese and Muller will do a Supercharger in this configuration with 2 600WH batteries with Rolhoff E-14. That will be the dream for heavy loaded and hilly touring.
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Old 06-11-19, 01:35 PM
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Originally Posted by elainehillrider View Post
Newbie question but is it only for e-mtb or also for electra townie or tern kind of e-bikes too ?
Good remark. Only for e-mtb as far as I know. Current line-up for city e-biking is still good, IMHO.
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Old 07-03-19, 01:57 AM
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Originally Posted by maria.owenby View Post
Battery weight is the issue here. And i see companies have vision of making range longer rather than making bikes lighter. So even battery technology progress for certain time we won't see such major weight drops
Exactly. Mid-drive motors typically don't weight that much; it's the battery that ads most of the weight.

As for the Bosch system, to me it seems like they're sort of ripping off Brose. That's not necessarily a bad thing; Brose motors are efficient and function more similarly to conventional bikes. Obviously the new Bosch doesn't have much field testing, so we'll see how it does, but I still prefer Brose since they've employed this approach longer.
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Old 07-19-19, 09:55 PM
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If they could actually build a reliable motor where the outboard bearing doesn't fail every 18 to 24 months, even if it was heavier, would take that over anything lighter, that is even more likely to fail sooner. the hardest part to swallow is the $900 replacement cost when the motor fails out of warranty. thats dealer cost. whenever anyone tries to get more power out of 'smaller and lighter' when it comes to electric motors, thats a recipe for more expensive and more prone to failure sooner. Electric motors have been around for eons, and gazillions built, and so we all know what makes them reliable, and efficient. Bosch is just trying to cram more into less space, which really isn't what is needed on an ebike. Greater reliability is MUCH more important, then efficiency, which is why you have to choose Yamaha, hands down.
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