Hows everyone getting on with their New AMflow
- Thread starter avman
- Start date
But the fact that they promote that it can run 29er or mullet makes it illegal. Class one is limited to 20mph. Put a 27.5 on and it will do 22 mph and thus not a class one. This also opens them up to legal issues, something like “ my kid mulleted the bike , it went to fast and he/she got hurt, pay me money”.
Bikedriver19
Member
Hey, Bro- a few some questions for you, …
Man,… are those tears in your eyes?,…don’t cry. Its OK, come over here and I will give you a Hug. You can climb that hill, with your slow bike, and we will still love you.
- So curious….Why cant anybody put any wheel size, they want, or do anything they want, with their bike? What's "legal"
- My next door neighbor, has a crotch rocket tricked out, Hyabusa and it goes WAY past the speed limit, I should probably call the police, and have him arrested, right? God forbid, he has a bike, and has modified a bike, that can go 1 mph more than what is “legal”. He is such a BAD man. Cuz ya know… He will break the law, eventually, with that bike.
- Most of the guys, I ride with, myself included until recently, ride delimited bikes, should I call “the mountain bike police”? Should I turn myself in?
- Do you honestly think anyone, that is or will be riding this bike, gives a shit, about what is “legal”? (FYI, I don’t. I only care about the way it rides, and how fun it is.) But please - Send the MTB police, and catch me, if you can. That will be fun.
Man,… are those tears in your eyes?,…don’t cry. Its OK, come over here and I will give you a Hug. You can climb that hill, with your slow bike, and we will still love you.
The avinox head unit and I believe the app gives you the option to change the wheel size, so I’m guessing this will alter the speed sensor and limit it too class 1 regulation.
Bikedriver19
Member
The sensor / encoder disk on the Amflow, is on the back wheel, and you change this on the app. IT is the same disk with either wheel size, the app has no way of knowing what wheel size you actually have on the bike. I tested this, and I think this is pretty much the same for most bikes.
ITs the same the other way around, one of my buddies turned his Trek 29 into a mullet, and his bike cuts out < 20 mph. (He's older, not a fast rider, so he doesn't care.), and you can do the same, with this bike.
I have a hard time understanding "restrictions" and "classes" (But I've got no class), I have no idea why there are "limitations" in the first place for ebikes, I have never understood that.
You can ski 40 mph down a mountain, with small children and people all over the ski trails.
OR its like going down to the car dealership, buying a new Mercedes, but it is limited to the speed limit.... press on the gas, and it shits out at 55 mph.... kinda stupid.
The speed limit might be X...but still, you have the right, to buy a Lamborghini, if you want to.
And racers on closed courses,...why are we limiting them? We don't in any other sport.
Skiers and snowboards are not limited.
Cars are not limited
Motorcycles are not limited
DH riders are not limited going down the hill
Why are ebikes limited? Makes no sense. A lot of People are still scared of them, I think.
Ride responsibly, and within your abilities, ..its the same for every sport. Doesn't matter how "fast" your machine or you can go.
Guess you don’t know the legal system in the USA. Back in the 80’s Porsche came out with the 930 turbo. A bone head doctor brought one and ran out of skill , the car left the road backwards at mock way to fast . Guy died and Porsche had to pay. The judge ruled if the car goes off the road nose first it’s the driver's falt, car leaves the road butt first, it’s the car makers fault. If the bike company does not put in safeguards to prevent people getting around class one limits, they will be liable.
Bikedriver19
Member
Guess you've never been skiing.... or if the ski patrol needs to rescue someone that gets hurt, the mountain is liable, right?.
Lamborgini, Mclaren, Ferrari, Motocross Bikes, anything dangerous....all will now be restricted, or sorry, you can't have them anymore....cuz you could get hurt.
Dude, this is utter nonsense. You can kill yourself on a kids bike with training wheels. You can drive any car, restricted to 55 mph or not, into a cement wall, and also kill yourself. The car isn't responsible.
Imagine going to a motocross race, or a formula 1 race, ...and everything is restricted to 20 mph. How ridiculous.
Bikedriver19
Member
also, Power is power, at the end of the day. Remember that law of conservation of energy from high school Physics"
For any given power, there is a trade off between speed and torque. Smaller wheel, more torque, less speed. Larger wheel, more speed, less torque. You can't just get more power out of thin air. Any extra power is coming from your legs.
For any given power, there is a trade off between speed and torque. Smaller wheel, more torque, less speed. Larger wheel, more speed, less torque. You can't just get more power out of thin air. Any extra power is coming from your legs.
Cars and motorcycles are definitely limited depending on what class and series you're racing. Engine size, the amount of cylinders, even silly things like wheel/tire size and throttle area, how many gears, final gear ratio, automatic/manual. There's all kinds of rules, this includes a tech inspection before each race.
Your ebike is not limited on downhill, just go 100mph if you want.
There's nothing to stop you going downhill at any speed you want on your bike.
Public trails are not race tracks, you don't/cannot ride formula 1 car an a public road either. Races are races, riding on public trails/roads is different. Ride a acoustic bike, it's not restricted
You can not ski at any resort in the USA without signing a liability waiver. All cars sold in the USA have under steer dialed into their suspension setups so at the limit they will plow off the the road front end first. I know of no emtb’s sold in the USA that are factory released 29er / mullet able because of the speed issue.
Bikedriver19
Member
Public trails are not race tracks, you don't/cannot ride formula 1 car an a public road either. Races are races, riding on public trails/roads is different. Ride a acoustic bike, it's not restricted
Whatever.
Sure - Public roads are not race tracks, but anyone has the right, to by a lambo, Ferrari, Mclaren, Bugati...the list goes on, and drive it on public roads. How you drive is up to you, ...you can drive like an idiot, it you want, but there could be severe consequences. Life and ANY extreme sport, is without risk.
Anyone can get a volspeed, or speedbox, for their emtb., if compatible, and derestrict it.
Anyone can supercharge or add a twin turbo, to their car.
For ebike races especially, on a closed courses (race tracks). I see no reason at all to have a speed limit on an emtb.
Back to the topic - the Amflow. How is everyone doing?, I am doing fantastic with mine.
I would derestrict mine, if I could, and I will someday, if I can. But it I can't - no big deal, it's not bad at all, with the 21 mph mark, with a 29 set to 27.5. The "speed" of this bike, is really more about how much more speed you can get uphill, than down or on flat, in my opinion. It goes steep downhill, at the same speed as any other bike. On Flat - you buddy with the derestricted bike, has the advantage. Out of the corners, and uphill, it is super fast, they have no chance.
skismith
Member
lar1337
Member
Hey there....awesome your enjoying your new bike
What speed are you able to maintain up hill on a decent extended gradient? Say 500 meters
As a comparison on my Bosch gen4 I cruise up at 12mph if iam trying harder it's more like 15-16mph iam usual zapped at that speed at the top lol. Tech climbs are obviously slower as it's more about skill (mines average at best) momentum must help though.
Except that without speed limits, it will be legislated differently to a bicycle. I can ride my EMTB anywhere a bicycle can be ridden. I'd like to keep it that way.
That isn't going to happen when EMTBs start riding at 50kph on trails shared with pedestrians. If you can come across a pedestrian on the trail. A non-limited EMTB will be excluded. And that's nearly every trail I currently ride.
They are currently excluded now in the UK, and for good reason. Hopefully no amount of bleating will change this.
Australia has the same 25kph speed limit on ebikes, that are ridden on any public land. Thus I can ride my ebike anywhere a bike can go.
I also want that maintained. That's what these people who call for speed restrictions to be removed don't realise.
To the contrary, they do realise, but are determined to pursue their own selfish aims to the detriment of the vast majority of other riders.
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If you put a 27.5 wheel on a bike whose motor cutoff is set to 29 don't you actually get a lower cutoff speed rather than a higher? Also this is the same with any motor, it's not unique to DJI although perhaps most manufactures only allow dealers to modify the 29/27.5 setting when in the shop.
List of e bikes that are manufacturer supported mullet able please? There are plenty you can mullet but none I know of supported by the bike makers aside from amflow. For example, I have a buddy with turbo Levo, he pulled that little plastic protector on the chain stay and the bike fits a 29x2.4. That’s how I know about the 22 mph speed . He just pulls away on fire road hill climbs. It is my understanding that amflow allows the owner to convert back and forth. This means if you want to make your 29er faster, just program it for a 27.5…… thus, illegal in the USA.
AFAIK all the major motors can be set to either 27.5 or 29. Most if not all require the dealer to change the setting however.
That scenario you are talking about is the opposite of what you originally posted. Yes, putting a 29 into a bike with a 27.5 motor setting will up the cutoff slightly. The Amflow comes as a 29 standard though so there's no issue with legality. Is the wheel size setting able to changed by the user? Amflow could easily change this however if it caused an issue.
Again, the very ability of the owner to change the settings opens up all kinds of legal issues. Kid changes the settings and get hurt, maker get sued. Some dumb dude clips a hiker at high speed with the changed settings, the guy and the company gets sued….. and the land manager has a reason to kick e bikes off the trails. In the land where medical bills can hit six figures very quickly, it’s always someone’s else’s falt.
TheSnowShark
Well-known member
@mustclime your repetitiveness is becoming tiresome 
Bikedriver19
Member
Hey there....awesome your enjoying your new bike
What speed are you able to maintain up hill on a decent extended gradient? Say 500 meters
As a comparison on my Bosch gen4 I cruise up at 12mph if iam trying harder it's more like 15-16mph iam usual zapped at that speed at the top lol. Tech climbs are obviously slower as it's more about skill (mines average at best) momentum must help though.
Definitely enjoying, so much.
Not sure, I don't live in the mountains, the trails I ride don't generally have hills long enough without twisty turns, to have time to measure the difference, straight up,.. its a lot of fast up and down, roots, rocky, technical, etc.
I can definitely see and feel the difference, uphill, with my buddies riding, in comparison. If I had to guess, maybe 1-3 mph more uphill. Next time I ride, I will try to measure compared to my buddies, up a "big" hill.
You can still zap yourself with this bike, put as much of your power into it, as you want. If anything, the faster speed uphill, gives you more of a workout.
How many have mulleted their bike? I keep buzzing my arse so I'm thinking of doing that.
I had my bike back in the shop for creaking and cracking of the frame. The bike shop said its due to the design of the suspension and I can expect it to happen over the course of ownership also they reckon its due to my size and flexing of the frame.
I've got it back and it's much quieter but still cracks occasionally when pushing hard through the cranks and twisting the bike.
Anyone experience similar?
I had my bike back in the shop for creaking and cracking of the frame. The bike shop said its due to the design of the suspension and I can expect it to happen over the course of ownership also they reckon its due to my size and flexing of the frame.
I've got it back and it's much quieter but still cracks occasionally when pushing hard through the cranks and twisting the bike.
Anyone experience similar?
188cm, 108kg. XL Bike
