Hi from Spain

[fenomeno]

Hi to all people and staff from this forum.
I'm an enthusiast cyclist who ride with semiprofessionals and I need help to follow them and do not be drop out from the bunch and loose the van that we follow us...
This is why I'm here...
Thanks a lot for sharing your knowledge with me.
Regards.

 

[matthewslack]

You need to check the laws in Spain...

A legal EN15194 EAPC will not help you because semi professional riders will be too fast, and most of the time above the 25km/h cut off speed.

Are you allowed a 45km/h speed pedelec in Spain? That might help, although you will probably need more than one battery for longer rides.

 

[flecc]

You need to check the laws in Spain...

Speed pedelecs are not allowed in Spain, only the usual 25 kph EPACs, so likely to be too slow to keep pace with semi-professional road bike riders, as you say.
.

 

[fenomeno]

Do not worry, matthewslack I'm a consious EUROPEAN citizen.

Text taken from here


Right now, I own a BMC AMP Three with Mahle X20, that complies with EN15194 law.

It works cutting the 250w maximum assistance power (If I'm able to put in the pedals 250W mechanical power and the assistance level has been fixed at 100%, not very normal at my fit) and decreasing gradually the assistance power up to 27 km/h, which I suspect is the limit of the motor or just near.
What I'd like to do is:
Increase the battery capacity to 691.2Wh (with this cells)
Get a more powerful motor to cut off the assistance at 25Km/h and reduce the power/torque assistance up to 0 at 32km/h.

What do you think about?

Thanks.

 

[matthewslack]

If the motor is helping you to 32km/h, it is not legal under EN15194.

So am I misunderstanding?

 

[Peter.Bridge]

Do not worry, matthewslack I'm a consious EUROPEAN citizen.

Text taken from here
View attachment 61148

Right now, I own a BMC AMP Three with Mahle X20, that complies with EN15194 law.

It works cutting the 250w maximum assistance power (If I'm able to put in the pedals 250W mechanical power and the assistance level has been fixed at 100%, not very normal at my fit) and decreasing gradually the assistance power up to 27 km/h, which I suspect is the limit of the motor or just near.
What I'd like to do is:
Increase the battery capacity to 691.2Wh (with this cells)
Get a more powerful motor to cut off the assistance at 25Km/h and reduce the power/torque assistance up to 0 at 32km/h.

What do you think about?

Thanks.

I think it would be technically possible, but not with the Mahle X20 - I think that technology is proprietary and locked.

But it would be technically possible to start off with a road bike , add a very lightweight hub motor and add a bag battery and then set the motor assist cut off speed. The problem is that I think that would be illegal under EU / Spanish law. There are a range of hub motors around 1.5kg . The pre-built motor wheels and rims on sale on Amazon / E-bay aren't usually road bike rims, but i guess it would be possible to build a wheel with a very lightweight hub motor and road bike rims. There are bag batteries available that are 36V 15Ah (540Wh) that weigh 2.2kg