E-bike talk: not tech rumor derailment

DylanJM
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7/4/2025 12:01am

From the WC pit article. 

Bosch powered Decoy. 

20250702 UCI DHEDR WC LaThuile SR38642

 

8
grinch
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7/4/2025 5:38am
DylanJM wrote:
From the WC pit article. Bosch powered Decoy.         

From the WC pit article. 

Bosch powered Decoy. 

20250702 UCI DHEDR WC LaThuile SR38642

 

Yessss!! Finally. Looks like 800w battery too

1
AndehM
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7/4/2025 6:31am
DylanJM wrote:
From the WC pit article. Bosch powered Decoy.         

From the WC pit article. 

Bosch powered Decoy. 

20250702 UCI DHEDR WC LaThuile SR38642

 

Bosch, or DJI?  The screen looks inset into the top tube, so DJI was my guess.  The new Bosch display sits flat on top of the TT.  OTOH, the motor looks chonkier than the DJI one, so maybe it is Bosch.

7/4/2025 6:49am Edited Date/Time 7/4/2025 7:00am
DylanJM wrote:
From the WC pit article. Bosch powered Decoy.         

From the WC pit article. 

Bosch powered Decoy. 

20250702 UCI DHEDR WC LaThuile SR38642

 

AndehM wrote:
Bosch, or DJI?  The screen looks inset into the top tube, so DJI was my guess.  The new Bosch display sits flat on top of the...

Bosch, or DJI?  The screen looks inset into the top tube, so DJI was my guess.  The new Bosch display sits flat on top of the TT.  OTOH, the motor looks chonkier than the DJI one, so maybe it is Bosch.

That's a Bosch Kiox 400C display:
 image 383.png?VersionId=gEh9fi8KNrlCtMrD 7SR9th9M.

Front motor mount bolt is also typically Bosch (see Vala or Bullit), and that downtube size is also way too big for it to be DJI, their 800Wh battery is a lot slimmer (see AmFlow).

3
7/4/2025 8:20am

Looks like another chonky 25 kg plus Enduro... 

1
7/4/2025 8:32am

https://ebike-mtb.com/owuru-gearbox-unit/

'The biggest WOW moment comes right at the beginning: no triggers, no gears.'

Something about their weight calculation doesn't add up. They write it's 200 g lighter than the pinion system and you don't need a trigger but other than that I only see that the motor system is 200g plus lighter than pinion bikes and those are 25kg plus aswell...

DylanJM
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7/4/2025 9:21am
tabletop84 wrote:
Something about their weight calculation doesn't add up. They write it's 200 g lighter than the pinion system and you don't need a trigger but other...

Something about their weight calculation doesn't add up. They write it's 200 g lighter than the pinion system and you don't need a trigger but other than that I only see that the motor system is 200g plus lighter than pinion bikes and those are 25kg plus aswell...

Seems clearly laid out in the article to me.

Pinion MGU: 4.1kg

Owuru MGU: 3.9kg

Bosch Gen 5 motor + GX T-type drivetrain: 2.8kg + 1.3kg (4.1kg in total i.e. 200g more than the Owuru). 

I think what they are trying to say is that there isn't really a weight penalty to using an MGU when you factor in the removal of the normal derailleur drivetrain.  

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7/4/2025 2:44pm Edited Date/Time 7/4/2025 11:33pm

There must be some hidden weight being added by the rest of the system like the battery or frame construction because the real world weights of the bikes are really high.

We're basically witnessing the SUV-isation of the bicycle at this point which means for the original purpose relatively useless electronic featuress get implemented and drive the weight. Of course the marketing department (magazines) will tell you otherwise or it's not noticeable.

It's no longer about moar shimz but about more motors. 

earleb
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7/10/2025 11:10am

Looks like Dyname won't be exclusive to Rocky any more. 

https://bikerumor.com/single-and-looking-to-mingle-dyname-motors-are-no-longer-exclusive-to-rocky-mountain/

Wonder if anyone will build with it? 

It also looks like the S4 Pro is different than the current 4.0 version used by Rocky? 

https://www.dyname.ca/

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gx
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7/11/2025 6:30am
tabletop84 wrote:
There must be some hidden weight being added by the rest of the system like the battery or frame construction because the real world weights of...

There must be some hidden weight being added by the rest of the system like the battery or frame construction because the real world weights of the bikes are really high.

We're basically witnessing the SUV-isation of the bicycle at this point which means for the original purpose relatively useless electronic featuress get implemented and drive the weight. Of course the marketing department (magazines) will tell you otherwise or it's not noticeable.

It's no longer about moar shimz but about more motors. 

I’ve only seen it on full size heavyweights like Nicolais and Rotwilds, is there an MGU on a more svelt bike floating around? Those bikes without an E setup are already 40 lbs no problem.

lando
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7/11/2025 7:23am

Somehow this slipped through all of the press about power updates. Looks like a fun power boost, but the battery is going to go that much faster.IMG 7571

2
7/11/2025 1:28pm
tabletop84 wrote:
There must be some hidden weight being added by the rest of the system like the battery or frame construction because the real world weights of...

There must be some hidden weight being added by the rest of the system like the battery or frame construction because the real world weights of the bikes are really high.

We're basically witnessing the SUV-isation of the bicycle at this point which means for the original purpose relatively useless electronic featuress get implemented and drive the weight. Of course the marketing department (magazines) will tell you otherwise or it's not noticeable.

It's no longer about moar shimz but about more motors. 

gx wrote:
I’ve only seen it on full size heavyweights like Nicolais and Rotwilds, is there an MGU on a more svelt bike floating around? Those bikes without...

I’ve only seen it on full size heavyweights like Nicolais and Rotwilds, is there an MGU on a more svelt bike floating around? Those bikes without an E setup are already 40 lbs no problem.

Lightest emtb I know with MGU is this: https://ebike-mtb.com/en/haibike-allmtn-cf-11-trn-iq-review-2025/

Another slightly heavier optino would be the Simplon: https://ebike-mtb.com/en/2023-simplon-rapcon-pmax-pinion-2023-test/

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lando
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7/13/2025 5:21pm

Bosch power update is supposedly releasing tomorrow.

AndehM
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7/15/2025 11:06am
lando wrote:

Bosch power update is supposedly releasing tomorrow.

Got my Bosch update yesterday (SC Vala).  I tried out the increased torque in Turbo mode (up to 100 from 85) and found it excessive and went back to 85.  Likewise, I didn't even bother bumping max power to 750... in full Turbo, it's already a ridiculous amount of assist and I don't need to do even less work or go even faster.  I'd rather get more range.  The new EMTB+ mode is cool, basically a dynamic turbo mode.  I did tune the "Dynamic" aspect of it down -2 because the run-on was too aggressive for my taste.  The 4 profiles I've got selected right now are Turbo (for doing trail work with a pack of tools), EMTB+ (for after work power hours / riding fast with other full power ebikes), EMTB (for a balance of range & assistance), and Tour+ (for range/efficiency).

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sethimus
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7/15/2025 12:10pm

wants more range

deletes eco mode

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7/16/2025 4:39am
sethimus wrote:

wants more range

deletes eco mode

Eco doesn't even make up for the extra weight of the bike, and the drag from the motor. It's literally harder than riding a normal bike. Tour+ is where it's at!

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ebikeluver
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7/16/2025 11:07am
sethimus wrote:

wants more range

deletes eco mode

Eco doesn't even make up for the extra weight of the bike, and the drag from the motor. It's literally harder than riding a normal bike...

Eco doesn't even make up for the extra weight of the bike, and the drag from the motor. It's literally harder than riding a normal bike. Tour+ is where it's at!

I retuned my eco to 60 nm and -2 and I’ve found it’s pretty much the same as my regular bike. Eco definitely gives a boost. 

What’s the point of the new emtb mode, I thought the current mode adapted up to turbo as well?

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AndehM
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7/16/2025 11:47am
sethimus wrote:

wants more range

deletes eco mode

Eco doesn't even make up for the extra weight of the bike, and the drag from the motor. It's literally harder than riding a normal bike...

Eco doesn't even make up for the extra weight of the bike, and the drag from the motor. It's literally harder than riding a normal bike. Tour+ is where it's at!

ebikeluver wrote:
I retuned my eco to 60 nm and -2 and I’ve found it’s pretty much the same as my regular bike. Eco definitely gives a boost. What’s...

I retuned my eco to 60 nm and -2 and I’ve found it’s pretty much the same as my regular bike. Eco definitely gives a boost. 

What’s the point of the new emtb mode, I thought the current mode adapted up to turbo as well?

I don't have it handy, but I saw somewhere some Bosch marketing graphs of power input/output relations for the various modes.  Basically the modes without a "+" in the name have a linear relationship between input power and output power, whereas the "+" modes are what they call "dynamic", where support ramps up in a non-linear fashion.  Among the linear modes, Turbo had access to full power, Eco had the lowest (like 15% or so), Tour was a bit higher (maybe 30%), and EMTB was middle-ish (like 60-65%).  The dynamic modes start out at the same point as the non-dynamic but give more support later on, so at low effort/input/speed they're pretty efficient, but can ramp up support when the rider puts in a lot more torque & cadence.  So while EMTB would peak at like 65% of the support that Turbo would give you, EMTB+ starts the same but ramps up close to or the same as Turbo.  They're a little bit opaque in what exactly the logic is behind the curtain for the dynamic modes (hinting that it's not just torque and cadence, but also inclination & other factors).  

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Eoin
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7/16/2025 12:42pm Edited Date/Time 7/16/2025 12:44pm
AndehM wrote:
I don't have it handy, but I saw somewhere some Bosch marketing graphs of power input/output relations for the various modes.  Basically the modes without a...

I don't have it handy, but I saw somewhere some Bosch marketing graphs of power input/output relations for the various modes.  Basically the modes without a "+" in the name have a linear relationship between input power and output power, whereas the "+" modes are what they call "dynamic", where support ramps up in a non-linear fashion.  Among the linear modes, Turbo had access to full power, Eco had the lowest (like 15% or so), Tour was a bit higher (maybe 30%), and EMTB was middle-ish (like 60-65%).  The dynamic modes start out at the same point as the non-dynamic but give more support later on, so at low effort/input/speed they're pretty efficient, but can ramp up support when the rider puts in a lot more torque & cadence.  So while EMTB would peak at like 65% of the support that Turbo would give you, EMTB+ starts the same but ramps up close to or the same as Turbo.  They're a little bit opaque in what exactly the logic is behind the curtain for the dynamic modes (hinting that it's not just torque and cadence, but also inclination & other factors).  

That's not quite right, Emtb was much closer to Turbo, but starts with much lower assistance if you don't put much effort into the pedalling. Emtb can reach the same peak power and torque as Turbo. Before the update, both Emtb and Turbo had 320% max assist level.

Now after the update I believe emtb stays at 320% max assist, while emtb+ is 400% along with Turbo. You can set the wattage and torque individually to each mode. I think emtb+ has longer overrun also.

For the comments about Eco, if you have a gen5 with 800Wh battery, Tour+ will allow for massive rides.

 

https://chargeabout.com.au/wp-content/uploads/2021/05/Screen-Shot-2021-05-19-at-12.21.52-pm.png

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ebikeluver
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7/16/2025 12:44pm Edited Date/Time 7/16/2025 1:08pm

Well I’m gonna update it right now and see how it feels I guess. I would think it’s gonna blast me off the trail when I use more power to clear something though. 
edit: Not in Canada yet I guess. 

AndehM
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7/16/2025 1:08pm
AndehM wrote:
I don't have it handy, but I saw somewhere some Bosch marketing graphs of power input/output relations for the various modes.  Basically the modes without a...

I don't have it handy, but I saw somewhere some Bosch marketing graphs of power input/output relations for the various modes.  Basically the modes without a "+" in the name have a linear relationship between input power and output power, whereas the "+" modes are what they call "dynamic", where support ramps up in a non-linear fashion.  Among the linear modes, Turbo had access to full power, Eco had the lowest (like 15% or so), Tour was a bit higher (maybe 30%), and EMTB was middle-ish (like 60-65%).  The dynamic modes start out at the same point as the non-dynamic but give more support later on, so at low effort/input/speed they're pretty efficient, but can ramp up support when the rider puts in a lot more torque & cadence.  So while EMTB would peak at like 65% of the support that Turbo would give you, EMTB+ starts the same but ramps up close to or the same as Turbo.  They're a little bit opaque in what exactly the logic is behind the curtain for the dynamic modes (hinting that it's not just torque and cadence, but also inclination & other factors).  

Eoin wrote:
That's not quite right, Emtb was much closer to Turbo, but starts with much lower assistance if you don't put much effort into the pedalling. Emtb...

That's not quite right, Emtb was much closer to Turbo, but starts with much lower assistance if you don't put much effort into the pedalling. Emtb can reach the same peak power and torque as Turbo. Before the update, both Emtb and Turbo had 320% max assist level.

Now after the update I believe emtb stays at 320% max assist, while emtb+ is 400% along with Turbo. You can set the wattage and torque individually to each mode. I think emtb+ has longer overrun also.

For the comments about Eco, if you have a gen5 with 800Wh battery, Tour+ will allow for massive rides.

 

https://chargeabout.com.au/wp-content/uploads/2021/05/Screen-Shot-2021-05-19-at-12.21.52-pm.png

Thanks, it was a graph like that I was thinking of.  I haven't seen one showing EMTB vs. EMTB+ though, so I didn't know that about the change to max assist.  When I rode last night, I'd agree that EMTB did feel weaker than it used to when putting out a similar level of effort.  The reason I like the dynamic modes (basically any of the ones where it's not just a linear relationship between assistance & rider power) is that they are really efficient where it's less steep and you don't need as much assistance, rather than wasting watts blazing along.

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lando
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7/16/2025 4:52pm

I just rode the new EMBT+ last night and this morning on my gen 4 Bosch CX, so it’s still 85 nm and 600 watts, but it has the dynamic power curve and provides 400% assist. The difference is noticeable. While it starts pedaling and rides the same on flats, as soon as you get into steep terrain and put power in the pedals, the bike rockets into turbo way quicker than the original emtb mode. The over run is much stronger, allowing you to ratchet through techie weird climbs much easier once you’ve found the sweet spot. At +3 and +3 in custom settings, it feels like a powerhouse. If I were in techie, death-cliff scenarios, I’d probably tune it down or switch back to the original emtb mode—it’s just a lot of power. That said, I really like it. The range estimations were equal among emtb, emtb+, and turbo—whether that’s accurate or not, I don’t know. It seems like it used more battery quicker than regular emtb though.

1
7/18/2025 5:18am

I wonder when we will have someone dying because of some overrun on an exposed section of trail. I try to deactivate assistance on exposed trails because sometimes scary stuff happened when I was off the bike and there was some input to the pedals and the Levo would just want to escape by itself. 

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ebikeluver
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7/18/2025 12:43pm

Just in case anyone else was waiting for the update, I had to uninstall the app and reconnect the bike to have the update show and then uninstall the app again and reconnect AGAIN and go back into the update screen to be able to undate the torque. I’m in Canada, maybe that’s why. I don’t like the overrun so far, swapped back to regular emtb mode. The turbo is sick though. 

Eoin
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7/18/2025 11:22pm

I've done 2 big rides with the additional power update.

The increase in power is noticeable, but the added overrun is the most striking. I downshift into regular emtb before descents as I am a bit worried about the excessive overrun, might need to tune the "dynamic" setting further down.

Note that I managed to derate the motor on both rides, doing roughly 20minutes straight of fast road climbing in hot weather, the motor kicked in the equivalent of Eco and was took quite some time to cool down and give full power back.

brash
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7/18/2025 11:31pm Edited Date/Time 7/18/2025 11:32pm

went for a ride with a mate on his Vala today with the update, he left me for dead. He said turbo is actually too much offroad. "E-mtb" mode or whatever it's called is the sweet spot.

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TheKaiser
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7/19/2025 9:31pm
ebikeluver wrote:
Just in case anyone else was waiting for the update, I had to uninstall the app and reconnect the bike to have the update show and...

Just in case anyone else was waiting for the update, I had to uninstall the app and reconnect the bike to have the update show and then uninstall the app again and reconnect AGAIN and go back into the update screen to be able to undate the torque. I’m in Canada, maybe that’s why. I don’t like the overrun so far, swapped back to regular emtb mode. The turbo is sick though. 

Is there not an adjustment to lower the overrun in EMTB+ mode, independent of the other settings? I guess even if it does exist, you might not want to lower it if you happen to like the overrun in other terrain and just want to turn if off for switchbacks and whatnot.

ebikeluver
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7/20/2025 12:34am

I don’t think so, but I also didn’t dig too far. The regular emtb has a touch of overrun and I’m happy with that. 

AndehM
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7/20/2025 7:01am
ebikeluver wrote:
Just in case anyone else was waiting for the update, I had to uninstall the app and reconnect the bike to have the update show and...

Just in case anyone else was waiting for the update, I had to uninstall the app and reconnect the bike to have the update show and then uninstall the app again and reconnect AGAIN and go back into the update screen to be able to undate the torque. I’m in Canada, maybe that’s why. I don’t like the overrun so far, swapped back to regular emtb mode. The turbo is sick though. 

TheKaiser wrote:
Is there not an adjustment to lower the overrun in EMTB+ mode, independent of the other settings? I guess even if it does exist, you might...

Is there not an adjustment to lower the overrun in EMTB+ mode, independent of the other settings? I guess even if it does exist, you might not want to lower it if you happen to like the overrun in other terrain and just want to turn if off for switchbacks and whatnot.

The "Dynamic" setting on EMTB+ seems to affect overrun.  I dialed it down to -1 or -2, I forget which, was experimenting with both.  Also, I did a full ride on EMTB+ with the raised torque/power settings, and barely lost any range compared to the old values & running full Turbo (maybe ~150' vert, tops).

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