E-bike talk: not tech rumor derailment

grinch
Posts
277
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10/15/2013
Location
CA
19 hours ago
Fox wrote:
The Amflow and Teewing bikes look like a good value. Can you actually buy one and have it within a week? Seems like there are a lot...

The Amflow and Teewing bikes look like a good value. 

Can you actually buy one and have it within a week? Seems like there are a lot of people waiting around for Avinox equipped bikes that were ordered and in some cases paid for a while (months) ago. Considering how fast new bikes are coming out, I would not want to wait around. 

I was chatting with teewing canada. They have medium flux' ready for shipping from BC. Larges sometime this month. Not much to swap if anything on those bikes. Pretty dialed out of the box 9200cad with fox performance 180f/r, mullet, 155 cranks, 35mm rise bar, 170dropper m and 200large. Maybe swap dh casing tires in place of the enduro casings it comes with?

1
Whattheheel
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209
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6/11/2014
Location
Spearfish, SD, USA
15 hours ago
Just published our Amflow PX Carbon Pro review - https://www.vitalmtb.com/product/guide/e-bikes/amflow/px-77641#comment-838216 TLDR: I would buy the cheaper PX Carbon and buy better suspension second-hand on marketplace, and...

Just published our Amflow PX Carbon Pro review - https://www.vitalmtb.com/product/guide/e-bikes/amflow/px-77641#comment-838216 

TLDR: I would buy the cheaper PX Carbon and buy better suspension second-hand on marketplace, and romp it for a long time. The bike was super capable and fun to ride, it's light, the motor/range/tunability/interface is great, and all the geo adjustments make it quite adaptable.  

Jason does not ride second hand!!!  Nothing but the best!!!!

3
8 hours ago
Just published our Amflow PX Carbon Pro review - https://www.vitalmtb.com/product/guide/e-bikes/amflow/px-77641#comment-838216 TLDR: I would buy the cheaper PX Carbon and buy better suspension second-hand on marketplace, and...

Just published our Amflow PX Carbon Pro review - https://www.vitalmtb.com/product/guide/e-bikes/amflow/px-77641#comment-838216 

TLDR: I would buy the cheaper PX Carbon and buy better suspension second-hand on marketplace, and romp it for a long time. The bike was super capable and fun to ride, it's light, the motor/range/tunability/interface is great, and all the geo adjustments make it quite adaptable.  

Did you cover the motor rattle in the review?

https://www.emtbforums.com/threads/avinox-m2s-rattle.46696/page-16

1
sspomer
Posts
6361
Joined
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Location
Boise, ID, USA
Fantasy
7 hours ago
Just published our Amflow PX Carbon Pro review - https://www.vitalmtb.com/product/guide/e-bikes/amflow/px-77641#comment-838216 TLDR: I would buy the cheaper PX Carbon and buy better suspension second-hand on marketplace, and...

Just published our Amflow PX Carbon Pro review - https://www.vitalmtb.com/product/guide/e-bikes/amflow/px-77641#comment-838216 

TLDR: I would buy the cheaper PX Carbon and buy better suspension second-hand on marketplace, and romp it for a long time. The bike was super capable and fun to ride, it's light, the motor/range/tunability/interface is great, and all the geo adjustments make it quite adaptable.  

tabletop84 wrote:

Did you cover the motor rattle in the review?

https://www.emtbforums.com/threads/avinox-m2s-rattle.46696/page-16

both the PR and PX bikes that we've had were exceptionally quiet. it seems like every motor brand has both complaints of motor noise or praises of of them being quiet. i was lucky to have the PR, a bosch and a specialized at the same time. the PR was the quietest riding the same trail back to back to back.

5
sspomer
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Boise, ID, USA
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5 hours ago

pit bits les gets has deets on the nicolai - "a full downhill ebike"

Screenshot 2026-08-19 at 9.45.43%E2%80%AFAM 0.png?VersionId=iL4JLejBwZQd
2
thresh
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141
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10/18/2023
Location
San Jose, CA, USA
Fantasy
3 hours ago
Just published our Amflow PX Carbon Pro review - https://www.vitalmtb.com/product/guide/e-bikes/amflow/px-77641#comment-838216 TLDR: I would buy the cheaper PX Carbon and buy better suspension second-hand on marketplace, and...

Just published our Amflow PX Carbon Pro review - https://www.vitalmtb.com/product/guide/e-bikes/amflow/px-77641#comment-838216 

TLDR: I would buy the cheaper PX Carbon and buy better suspension second-hand on marketplace, and romp it for a long time. The bike was super capable and fun to ride, it's light, the motor/range/tunability/interface is great, and all the geo adjustments make it quite adaptable.  

What is your take on the maneuverability of that bike? We've seen comments here on the forums that a slim highly placed battery makes it harder to steer.

2
sspomer
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Boise, ID, USA
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3 hours ago

on that topic, reece wilson is adding weight up high near the headset, along w/ weight down low (in same pit bits video above)

Screenshot 2026-08-19 at 11.42.46%E2%80%AFAM.png?VersionId=FkXm6ycl6158QMuiAmwk7.hvfIVn
2
2 hours ago
Just published our Amflow PX Carbon Pro review - https://www.vitalmtb.com/product/guide/e-bikes/amflow/px-77641#comment-838216 TLDR: I would buy the cheaper PX Carbon and buy better suspension second-hand on marketplace, and...

Just published our Amflow PX Carbon Pro review - https://www.vitalmtb.com/product/guide/e-bikes/amflow/px-77641#comment-838216 

TLDR: I would buy the cheaper PX Carbon and buy better suspension second-hand on marketplace, and romp it for a long time. The bike was super capable and fun to ride, it's light, the motor/range/tunability/interface is great, and all the geo adjustments make it quite adaptable.  

tabletop84 wrote:

Did you cover the motor rattle in the review?

https://www.emtbforums.com/threads/avinox-m2s-rattle.46696/page-16

sspomer wrote:
both the PR and PX bikes that we've had were exceptionally quiet. it seems like every motor brand has both complaints of motor noise or praises...

both the PR and PX bikes that we've had were exceptionally quiet. it seems like every motor brand has both complaints of motor noise or praises of of them being quiet. i was lucky to have the PR, a bosch and a specialized at the same time. the PR was the quietest riding the same trail back to back to back.

It would be better if you tested it specifically also with the chain off to discount for kinematics and resonances from the frame and isolate noise. There is also a psychoacoustic component: many people claim the bike is silent when just riding it because they focus on riding.

And it's not really true that every motor brand or model has complaints about rattle. It's very different for certain models and some truly have none while others will rattle continuously on a fireroad.

So far M1/M2 seem to rattle and for MS2 it's unclear if only some units rattle due to issues or if its a more widespread issue where they are prone to rattling after some time.

1
1
2 hours ago
Just published our Amflow PX Carbon Pro review - https://www.vitalmtb.com/product/guide/e-bikes/amflow/px-77641#comment-838216 TLDR: I would buy the cheaper PX Carbon and buy better suspension second-hand on marketplace, and...

Just published our Amflow PX Carbon Pro review - https://www.vitalmtb.com/product/guide/e-bikes/amflow/px-77641#comment-838216 

TLDR: I would buy the cheaper PX Carbon and buy better suspension second-hand on marketplace, and romp it for a long time. The bike was super capable and fun to ride, it's light, the motor/range/tunability/interface is great, and all the geo adjustments make it quite adaptable.  

thresh wrote:
What is your take on the maneuverability of that bike? We've seen comments here on the forums that a slim highly placed battery makes it harder...

What is your take on the maneuverability of that bike? We've seen comments here on the forums that a slim highly placed battery makes it harder to steer.

I didn’t pull the battery out of the PX, but at least based on the graphics they provide, the battery makes up the majority of the down tube. So it’s not like the weight is centralized up high - it’s spread out and still mostly placed between your feet with the motor. 
I didn't find that just because the PX weighs less, that the battery placement had more of an influence on handling/steering. To me, the bike rode like a lightweight e-bike. It took more rider input to move on trail than a pedal bike and under heavy braking I notice more forward drive that required earlier braking on steep trails, but compared to a typical 50+ lb e-bike it felt much easier to handle. 
 

3
Eoin
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FR
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1 hour ago

Any comparison to the PR coming up? It's the same geo and kinematics so can't be that different right?

For the battery position, I think that argument is less important these days as 800Wh batteries have lost around 800g since the previous gen and the 700Wh in the PX is only just over 3kg.

2
sspomer
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Location
Boise, ID, USA
Fantasy
1 hour ago
tabletop84 wrote:
It would be better if you tested it specifically also with the chain off to discount for kinematics and resonances from the frame and isolate noise...

It would be better if you tested it specifically also with the chain off to discount for kinematics and resonances from the frame and isolate noise. There is also a psychoacoustic component: many people claim the bike is silent when just riding it because they focus on riding.

And it's not really true that every motor brand or model has complaints about rattle. It's very different for certain models and some truly have none while others will rattle continuously on a fireroad.

So far M1/M2 seem to rattle and for MS2 it's unclear if only some units rattle due to issues or if its a more widespread issue where they are prone to rattling after some time.

i'd thought about a chainless comparison, but who rides w/o a chain? 3 bikes on the same trail in their stock configuration seems pretty reasonable. the amflow had s1000 transmission, the levo had X0 transmission and the bosch bike had mechanical XT rear derailleur.

which full size motor is reported to not have any noise? i realize TQ or Fazua small motors are insanely quiet. i've never ridden a giant/yamaha and was on a sram motor once a few years ago and don't remember.

 

3
1 hour ago

The chainless comparison is for provoking the noise without the influences of the frame, kinematics and the focus on having to ride a difficult trail plus other stuff that can rattle. Just simulate what chain slap will do to the chainring by rocking it back and forth in quick succession and you'll hear if the motor theoretically can rattle in some models and how loud it is.

So far from recent full power motors only the Bosch Gen 5 and Brose S-Mag really have no rattle. The Sram motor is an S-Mag aswell as Specialized 2.1/2.2 motors (they don't rattle because of the belt which is also a weak point). I'm not sure on older motors but I think it started with motors getting more efficient with the e8000 shimano only rattling in certain models and really rough sections of trail while the sucessors who were more efficient rattle more. Similar story with Bosch until Gen 5. 

To test it if a series is rattle prone you should test it at a dealer or when you have access to a bigger rent fleet. With a chain its a bit harder but you can still provoke it without riding it. 

1
1
sethimus
Posts
959
Joined
9/20/2014
Location
CH
40 minutes ago
tabletop84 wrote:
It would be better if you tested it specifically also with the chain off to discount for kinematics and resonances from the frame and isolate noise...

It would be better if you tested it specifically also with the chain off to discount for kinematics and resonances from the frame and isolate noise. There is also a psychoacoustic component: many people claim the bike is silent when just riding it because they focus on riding.

And it's not really true that every motor brand or model has complaints about rattle. It's very different for certain models and some truly have none while others will rattle continuously on a fireroad.

So far M1/M2 seem to rattle and for MS2 it's unclear if only some units rattle due to issues or if its a more widespread issue where they are prone to rattling after some time.

mine has cable rattle (the main cable that goes up to the display as it has quite some slack. most ppl on emtbforums are idiots who most probably can't discern the difference. so far one person had a faulty unit and avinox replaced it immediately. that's the content of the whole thread on m2s motor rattle. the end. 

3

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