Atherton S170.E Dyf-E bike coming soon...

When I set up my Anakin frame build, Cavalerie advised me to set the belt tension as loose as possible without it falling off, which reduces output shaft bearing wear and drag.
Interesting. With my Rohloff, it's like "bring on the tension". Have you used the Gates "tensionometer" to dial in the belt tension? I just use their app where it twang the belt and it listens for the right pitch.

I've ran my bike in mud, but not like PNW mud. I've never had the belt derail because of it. For those swimming in mud, you can always use chains. Take a look at this recent Interdrive MGU video.
 
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Interesting. With my Rohloff, it's like "bring on the tension". Have you used the Gates "tensionometer" to dial in the belt tension? I just use their app where it twang the belt and it listens for the right pitch.

I've ran my bike in mud, but not like PNW mud. I've never had the belt derail because of it. For those swimming in mud, you can always use chains. Take a look at this recent Interdrive MGU video.
I ordered the Gates tension meter after I ordered my frame, but returned it because Cavalerie told me it’s useless for there setup. I actually learned all this after my first ride with the belt being too tight.
 
Can you elaborate? I don't know much about the advantages and disadvantages of different voltages.
Going 48V on an
e-bike (EMTB) offers more power and torque but comes with disadvantages like increased weight, higher cost, potentially longer charge times, and the need

Advantages:
  • Better Performance: Significantly better for hill climbing, acceleration, and overall torque.
  • Longer Range: Higher voltage often comes with higher Amp-hours (Ah), creating more Watt-hours (Wh) for longer rides.
 
Screenshot 2026-01-14 163302.png

They are toying with us... 😅
 
The DJI Avinox Motor has been out since 2024 and has a very good reliability record thus far. Additionally the motor has an IP55 water egress rating which is above most other current manufacturers. I think we can all agree between 2024 and all of 2025 the DJI Avinox motor and battery system has probably been through more brutal testing than any EMTB system before it. Amflow made sure their bike went out to anyone and everyone who wanted to put it through its paces. Some reviewers stated the bike they got looked “well used” and never had any motor/battery issues.

If Atherton adopted the M1 Avinox motor or the Bosch CX for their new EMTB it will probably be the best choice because both have a good track record. If they are engineering and building now they are already locked in, so whether it’s Avinox or the Bosch CX it will be a fantastic bike.
Was going to get a Crestline but held off because of the DJI. Undoubtedly a sick motor and an insane accomplishment for a first release, but the rattle and the power consumption were what put me off.

I could absolutely be wrong, but my worry was that such a quick fix for the rattle for their upcoming v2 would just be done by tightening things up which would mean even less efficiency and even less range.

Combine that with the DJI import issues here in the US and there were just too many question marks.

And then there's just me not having the patience to wait until May lol.

I don't doubt that I'll be on a DJI motor at some point as they'll definitely sort this stuff out.
 
C'mon, you guys don't really think they are gonna show the motor unit until the final episode or even after that 😂

It's not even an Atherton frame 🤦
 
I’m betting on it being a Maxon setup and the bike having been ridden in plain sight already in and around DYFI and beyond, due to how stealthy the setup looks to be. I could swear I’ve seen a weird-looking S150 that Dan was riding in one of Brayton’s videos.

Feels ’right’ that a boutique British manufacturer would partner with a boutique Swiss manufacturer, rather than go with Avinox or Bosch. They could pretty much slip the Maxon Air S into a current S150 with a minor tweak to the top tube for the display and be ready to go.
 
Really disappointed if it's DJI. Especially if the rumors are true and a second gen DJI is coming out this year with some of the issues fixed.

Well, in the UK at least part waits have been huge for DJI. Speed sensors are very fragile. Also now more people are racking up miles on them, they start to rattle, a lot. That's two issues allegedly coming in the next gen. That won't be till after eurobike so still quite a wait. Why would I pay for a second gen motor to replace a motor on a bike that I just bought? That makes zero sense

Was going to get a Crestline but held off because of the DJI. Undoubtedly a sick motor and an insane accomplishment for a first release, but the rattle and the power consumption were what put me off.

I could absolutely be wrong, but my worry was that such a quick fix for the rattle for their upcoming v2 would just be done by tightening things up which would mean even less efficiency and even less range.

Combine that with the DJI import issues here in the US and there were just too many question marks.

And then there's just me not having the patience to wait until May lol.

I don't doubt that I'll be on a DJI motor at some point as they'll definitely sort this stuff out.

It's wild to hear ANYONE acknowledge any shortcomings at all with the Avinox around here.

I've learned 3 things about e-bikers throughout my 'interesting' discussions of the motors:

1) They care about looks,
2) they care about max power,
3) and they don't care about much else if the first 2 are nailed down.

Efficiency, reliability, serviceability, no noise on 100% of the motors, ability to pedal when shut off, smooth pickup, lower center of gravity, built in chain ring protection...literally no one cares. The one with the 'looks' and the 'power' is the absolute best in their eyes.

I'll likely end up with a gen2 Avinox because I like the bikes and the CXR is so hard to get, but I'm not blind.

Do you know marketers of literally everything, from appliances to watch cases have learned that if you make something sleek and modern on the outside and in the packaging that this draws way more purchases than quality internals? People assume that if it looks modern and sleek, it must be high quality too.
 
Going 48V on an
e-bike (EMTB) offers more power and torque but comes with disadvantages like increased weight, higher cost, potentially longer charge times, and the need

Advantages:
  • Better Performance: Significantly better for hill climbing, acceleration, and overall torque.
  • Longer Range: Higher voltage often comes with higher Amp-hours (Ah), creating more Watt-hours (Wh) for longer rides.
With Bosch at 36v (apparently) and Avinox at 48v: does it really make a meaningful difference in the power ranges of eMTBs?
Regarding range: I don't really see a difference here, more how a certain number of cells are wired up to achieve a certain watt-hour figure.

Curious to learn more.
 
IMG_4333.jpeg

Fussed with the image to reveal the bottom of the downtube that's shadowed. Too skinny for Bosch.

If DJI fixed the rattle without impacting efficiency / range they're going to be a very clear leader.

Bummed about their choice to go all aluminum. More flex and weight. I wonder how the E factor influenced that decision?
 
View attachment 174633
Fussed with the image to reveal the bottom of the downtube that's shadowed. Too skinny for Bosch.

If DJI fixed the rattle without impacting efficiency / range they're going to be a very clear leader.

Bummed about their choice to go all aluminum. More flex and weight. I wonder how the E factor influenced that decision?
Flex? Have you tried their alu bikes? There isn't flex
 
View attachment 174633
Fussed with the image to reveal the bottom of the downtube that's shadowed. Too skinny for Bosch.

If DJI fixed the rattle without impacting efficiency / range they're going to be a very clear leader.

Bummed about their choice to go all aluminum. More flex and weight. I wonder how the E factor influenced that decision?
Based on that it's either gonna be a DJI or maybe somewhat surprisingly a Bosch SX.
 
Going 48V on an
e-bike (EMTB) offers more power and torque but comes with disadvantages like increased weight, higher cost, potentially longer charge times, and the need

Advantages:
  • Better Performance: Significantly better for hill climbing, acceleration, and overall torque.
  • Longer Range: Higher voltage often comes with higher Amp-hours (Ah), creating more Watt-hours (Wh) for longer rides.

With Bosch at 36v (apparently) and Avinox at 48v: does it really make a meaningful difference in the power ranges of eMTBs?
Regarding range: I don't really see a difference here, more how a certain number of cells are wired up to achieve a certain watt-hour figure.

Curious to learn more.
Pretty much everything Scott said is wrong. Looks like AI drivel to me.

A 48V system with the same battery capacity (Wh) as a 36V system will use exactly the same number of cells, just arranged in a different series/parallel configuration. So battery weight and cost is the same.

It's true that a 48V battery with more cells than a 36V battery can deliver more power (W) and will give longer range (Wh), but so will a 36V battery that has more cells than a 48V battery!

A 48V system will draw less Amps from the battery than a 36V system to deliver the same power (W). This means the battery cells are being discharged with a greater margin below their max discharge rate (a good thing). It also means there is less current flowing through the motor windings and so less heating (another good thing).

To be clear, all the above assumes both systems use the same spec cells. Battery manufacturers can choose cells that offer a bit higher capacity or a bit higher max discharge rate. Equally, some cells have better longevity or can be charged faster. Everybody wants cells that are best at all of these factors together, but we also want World peace and that's not happening any time soon either!
 
With Bosch at 36v (apparently) and Avinox at 48v: does it really make a meaningful difference in the power ranges of eMTBs?
Regarding range: I don't really see a difference here, more how a certain number of cells are wired up to achieve a certain watt-hour figure.

Curious to learn more.
Avinox is 36v not 48v.
 
Pretty much everything Scott said is wrong. Looks like AI drivel to me.

A 48V system with the same battery capacity (Wh) as a 36V system will use exactly the same number of cells, just arranged in a different series/parallel configuration. So battery weight and cost is the same.

It's true that a 48V battery with more cells than a 36V battery can deliver more power (W) and will give longer range (Wh), but so will a 36V battery that has more cells than a 48V battery!

A 48V system will draw less Amps from the battery than a 36V system to deliver the same power (W). This means the battery cells are being discharged with a greater margin below their max discharge rate (a good thing). It also means there is less current flowing through the motor windings and so less heating (another good thing).

To be clear, all the above assumes both systems use the same spec cells. Battery manufacturers can choose cells that offer a bit higher capacity or a bit higher max discharge rate. Equally, some cells have better longevity or can be charged faster. Everybody wants cells that are best at all of these factors together, but we also want World peace and that's not happening any time soon either!
There is no actual way to "have the same number of cells" in a 36v and 48v system.

All 36v system will have 10sXp battery. The 48v will be 13sXp.

10s3p = 30 cells
13s3p = 39 cells

No matter how you scale it they will never have the same number of cells regardless of WH's.
 
There is no actual way to "have the same number of cells" in a 36v and 48v system.

All 36v system will have 10sXp battery. The 48v will be 13sXp.

10s3p = 30 cells
13s3p = 39 cells

No matter how you scale it they will never have the same number of cells regardless of WH's.
You're absolutely right (y). But the 36V system would have 10s4p = 40 cells, so just one more than the 48V.
 
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