Meet my sad ass eBike "eMo"

[2Phast2Delirious]

He's called eMo (short for eMoped), but he also looks like a sad ass (Emo) fully gutted. This is a temporary solution as I couldn't decide which motorcycle or moped I wanted to convert to an eBike, and the Ruckus/Dio community members talked me out of converting my custom Honda Elite Dio because they didn't like the idea. Any GY6 49cc–150cc style moped/scooter can be equipped with this kit, although it should fit the majority of motorcycles with a swingarm and dual suspension.

I still need a crossbar to mount my display, turn signals, a headlight, a taillight, and a few little things. I'll upload new photos as soon as the weather improves.

















JDM-style 89 Honda Elite Dio

 

[2Phast2Delirious]

At last, my cross bar arrived! I still have some wires to tidy up. I'm pleased with the outcome.

 

[AtLarge]

Doesn’t look sad to me. Great job!

 

[2Phast2Delirious]

Just ordered a new controller. It has the same specs as the trigger throttle on my Urban Stealth.

48v 20AH Lithium
36v-60v 50A controller w/ LCD (for Super73)
PAS
Regen
Half-twist throttle w/ ergonomic grips
+30mph

 

[2Phast2Delirious]

Why is eMO so slow? I installed this controller and achieved a maximum speed of 25 mph (@ 48v 50a) along with a weaker acceleration compared to my Urban Stealth (similar specs). The heavy hub motor is rated at 48-60 volts and 500-800 watts. I tested this controller on a 350w 12" hub motor and achieved +35 mph, so I assumed I'd get at least 30 mph. Is there a limiter on the motor? I doubt it has to do with the weight of the moped (+100lbs) and rider (215 pounds).

Suspected issues:
Bad freewheel.
The hub motor nuts are a bit on the tight side. The chain was always rattling
Perhaps I did not tune it to its best capacity (checking today)


Miso Confucius

 

[stan.distortion]

Why is eMO so slow? I installed this controller and achieved a maximum speed of 25 mph (@ 48v 50a) along with a weaker acceleration compared to my Urban Stealth (similar specs). The heavy hub motor is rated at 48-60 volts and 500-800 watts. I tested this controller on a 350w 12" hub motor and achieved +35 mph, so I assumed I'd get at least 30 mph. Is there a limiter on the motor? I doubt it has to do with the weight of the scooter and rider (215 pounds).

Suspected issues:
Bad freewheel.
The hub motor nuts were are a bit on the tight side. The chain was always slack.
Perhaps I did not tune it to its best capacity (checking today)


Miso Confucius
...

What's the Kv of your motors? That would be my guess, Kv of your current motor is lower (RPM per volt) so the motor can't spin faster than 30mph even though it's putting out plenty of power.

 

[2Phast2Delirious]

What's the Kv of your motors? That would be my guess, Kv of your current motor is lower (RPM per volt) so the motor can't spin faster than 30mph even though it's putting out plenty of power.

I've always assumed that a 48v has a maximum speed of 22 to 28 mph (depending on weight)... Until I purchased my first 50a controller, I was amazed that it could reach +35 mph. I understand that the RPM will peak at a particular point, and anything beyond that will result in heat, but 25 mph seems too slow, so I'm guessing it's the controller settings. I'll report back after some fine tuning.

 

[E-HP]

Lift the wheel and check the no load speed. If it's the same as while riding, then it's limited. If it's faster, then it's not, and just the speed of the motor at 48V. It would be a little less than 25% faster at 60V (no load would be 25% faster, but less on the road due to wind resistance.
Do you have a link to the motor? It may list the KV, or more likely, two speeds corresponding to 48V and 60V.

 

[2Phast2Delirious]

Lift the wheel and check the no load speed. If it's the same as while riding, then it's limited. If it's faster, then it's not, and just the speed of the motor at 48V. It would be a little less than 25% faster at 60V (no load would be 25% faster, but less on the road due to wind resistance.
Do you have a link to the motor? It may list the KV, or more likely, two speeds corresponding to 48V and 60V.

Edit:
Thank you so much for the tip! Although the mph is off by -5 mph (no load), I just finished the tuning and noticed faster acceleration when everything was set up to maximum. However, the Speedo's maximum speed remains the same. I'll be satisfied if I can reach at least 30 mph with the extra torque.

 

[Az.]

Can you post a video how you pedal that thing? Pretty please...

 

[2Phast2Delirious]

Can you post a video how you pedal that thing? Pretty please...

Haha, not again! Last month I was pulled over while riding in the bike lane, and they told me to pedal for twenty feet without using the motor since he didn't believe it was legal (functional pedals?). When I discovered I was being filmed, they took off laughing.

The pedals are semi-functional (5 mph) and only exist for legal reasons. I know this thing will piss off a lot of hard-core cyclists, but it is permissible.

 

[E-HP]

Haha, not again! Last month I was pulled over while riding in the bike lane, and they told me to pedal for twenty feet without using the motor since he didn't believe it was legal (functional pedals?). When I discovered I was being filmed, they took off laughing.

The pedals are semi-functional (5 mph) and only exist for legal reasons. I know this thing will piss off a lot of hard-core cyclists, but it is permissible.

This is good info; the testing part. So no chain would be a fail. Was it downtown or just a random street?

 

[Az.]

When I discovered I was being filmed, they took off laughing.

See? Your... "bike" is not sad at all.

I know this thing will piss off a lot of hard-core cyclists

Yes of course. The more mopeds dressed up as bikes out there, the more likely government will introduce legislation and restrictions on e-bikes.

I am surprised to hear police let you go. Which country are you from if I might ask?

 

[2Phast2Delirious]

This is good info; the testing part. So no chain would be a fail. Was it downtown or just a random street?

Yes, if the pedals had not worked, I would have received a ticket. I guess they began cracking down on bogus pedals (which I had no idea existed). Random residential street

Yes of course. The more mopeds dressed up as bikes out there, the more likely government will introduce legislation and restrictions on e-bikes.

The UK may have stricter eBike regulations, which could explain your perspective. I always have the utmost respect for cyclists in the bike lane and try to avoid disputes with them. In the US, EV enthusiasts may be more concerned about +72v (+45mph) motorcycle projects with or without any pedals, attempting to pass them off as an eBike while riding in the bike lane.