Why Ride Rad?

[guerney]

Hi Guerney - I'll take a photo and post it tomorrow (19th)
Ride Rad

Cheers, I look forward to seeing a photo of your motor's label and other markings.

 

[thelarkbox]

Can op take a snap of the motor etching and if present the lil sticker as per the regs?

 

[guerney]

Would be interesting to know the battery continuous discharge rating .

"Genuine Samsung 35E cells"

Standard Battery Pack

Shop Standard Battery Pack For Electric Bike at Rad Power Bikes. Whether you're looking for a repair or making an upgrade, we have the parts to keep you moving.

radpowerbikes.eu

"Battery purchases are final and batteries cannot be returned"

 

[AGS]

If he is lucky enough to have a G062 instead of a G060 then he has a very torquey motor and it will be a superb hill climber.

 

[Nealh]

"Genuine Samsung 35E cells"

Standard Battery Pack

Shop Standard Battery Pack For Electric Bike at Rad Power Bikes. Whether you're looking for a repair or making an upgrade, we have the parts to keep you moving.

radpowerbikes.eu

"Battery purchases are final and batteries cannot be returned"

Definately not for high power then , 35e is only a so so cell.

 

[AGS]

I have noticed that people fit one of these and put a more capable battery inside.

RadRunner 2 Center Console

Featuring a cup holder and phone mount, this central water resistant storage unit can accommodate up to 10 kg of gear and be used with or without the lid.Max phone width: 79 mm.

radpowerbikes.eu

Got to laugh at the cup holder.

 

[guerney]

Definately not for high power then , 35e is only a so so cell.

Does this mean if the OP is drawing very high continuous current from that battery, he won't be riding rad for much longer? A bike aflame looks pretty radical. Ride red morelike.

 

[guerney]

I have noticed that people fit one of these and put a more capable battery inside.

RadRunner 2 Center Console

Featuring a cup holder and phone mount, this central water resistant storage unit can accommodate up to 10 kg of gear and be used with or without the lid.Max phone width: 79 mm.

radpowerbikes.eu

Got to laugh at the cup holder.

For a cannister of liquid nitrogen to extinguish the battery fire? They're gonna need bigger cup holders.

 

[AGS]

Does this mean if the OP is drawing very high continuous current from that battery, he won't be riding rad for much longer? A bike aflame looks pretty radical. Ride red morelike.

No, those cells aren’t marvellous by today’s standards but they have a maximum discharge current of 8 amps, each, so at 4P or 5P it will cope, but won’t give much range flat out from a 14AH battery.

 

[AGS]

30Q cells are much better and only cost a few pennies more.

 

[guerney]

30Q cells are much better and only cost a few pennies more.

 

[AGS]

Now look up the comparison between maximum discharge current of each type of cell.

 

[guerney]

Now look up the comparison between maximum discharge current of each type of cell.

"Max. continuous current: 15A "

Test of Samsung INR18650-30Q 3000mAh (Pink)

"Maximum discharge current: 13A "

Test of Samsung INR18650-35E 3500mAh (Pink)

How is the maximum continuous discharge current of this Rad battery containing Samsung 35E cells calculated?

Standard Battery Pack

Shop Standard Battery Pack For Electric Bike at Rad Power Bikes. Whether you're looking for a repair or making an upgrade, we have the parts to keep you moving.

radpowerbikes.eu

 

[AGS]

Interesting figures you got. Mine are

35E - 3500mah and 8 amps
30Q - 3000mah and 20 amps

One moment, please...

 

[Nealh]

The battery is 14ah std so only 4p , typically one should draw approx. 60% for cell longevity. 20a at 4p would be about the ideal draw for power , one can see it starting to sag more at 7a.

30Q's have a chequered past of self discharging.
Although the 30Q has a max 20a discharge it is not a continuous discharge, 15a is it's continuous discharge.
One can see it is a bit saggy at 15a but the discharge curve is linear.
It isn't an out and out power cell but has a lot of stored energy , at 20a one see it down to only 1500mah @3.3v.

 

[guerney]

The battery is 14ah std so only 4p , typically one should draw approx. 60% for cell longevity. 20a would be about the ideal draw for power.

If the OP's level 3 draws more than 48V X 20A = 960W, his battery will provide longer service life, if he rides rad at level 2? ie Roaming a bit less rad.

Probably not a good idea to use the throttle for long then, if the OP has one.

Never go beyond Pas level 3 - ever

 

[AGS]

He needs to enquire about all this stuff on the Rad owners forum. They have been running these upgrades for years, so should be able to advise him of what works and what doesn’t.

 

[AndyBike]

If the op is happy with his bike thats about all anyone needs to care about. and as to whether the motor is legal or not I dont think matters either, as long as he isnt bombing along the road at 40mph, he's not going to attract any attention.

Just another bloke pottering along.

Not my cup of tea, and the weight is pretty extreme, but such is the nature of it.

 

[guerney]

I can't imagine cycling a 36kg bike with no gears and a legal 250 watt motor up a hill. The later Rad-Runner versions at least had gears (and suspension IIRC).

81lbs = 36.741kg... that's before the 3kg Kryptonite bike lock, drinks holder, suspension seatpost, mudguards, GoPro mount and camera, phone holder, and Zefal Doockack II end bar mirror. About 40kg? Whenever I attempt weighing my bike, I leave all that sort of stuff on.

 

[cyclebuddy]

81lbs = 36.741kg... that's before the 3kg Kryptonite bike lock, drinks holder, suspension seatpost, mudguards, GoPro mount and camera, phone holder, and Zefal Doockack II end bar mirror. About 40kg? Whenever I attempt weighing my bike, I leave all that sort of stuff on.

I'm still not seeing any attraction to Riding Rad either. My 20" Fiido is less than half the weight (17.5kg stripped, 19kg with rack and all the bits and bobs attached), and half the price. If it were made of pig-iron, it'd likely still weigh less.