March 19, 20242 yr 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.
March 19, 20242 yr Can op take a snap of the motor etching and if present the lil sticker as per the regs?
March 19, 20242 yr Would be interesting to know the battery continuous discharge rating . "Genuine Samsung 35E cells" https://radpowerbikes.eu/products/standard-battery-pack "Battery purchases are final and batteries cannot be returned" Edited March 19, 20242 yr by guerney
March 19, 20242 yr 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.
March 19, 20242 yr "Genuine Samsung 35E cells" https://radpowerbikes.eu/products/standard-battery-pack "Battery purchases are final and batteries cannot be returned" Definately not for high power then , 35e is only a so so cell.
March 19, 20242 yr I have noticed that people fit one of these and put a more capable battery inside. https://radpowerbikes.eu/products/radrunner-center-console Got to laugh at the cup holder.
March 19, 20242 yr 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. Edited March 19, 20242 yr by guerney
March 19, 20242 yr I have noticed that people fit one of these and put a more capable battery inside. https://radpowerbikes.eu/products/radrunner-center-console 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.
March 19, 20242 yr 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.
March 19, 20242 yr Now look up the comparison between maximum discharge current of each type of cell.
March 19, 20242 yr Now look up the comparison between maximum discharge current of each type of cell. "Max. continuous current: 15A " https://lygte-info.dk/review/batteries2012/Samsung%20INR18650-30Q%203000mAh%20%28Pink%29%20UK.html "Maximum discharge current: 13A " https://lygte-info.dk/review/batteries2012/Samsung%20INR18650-35E%203500mAh%20%28Pink%29%20UK.html How is the maximum continuous discharge current of this Rad battery containing Samsung 35E cells calculated? https://radpowerbikes.eu/products/standard-battery-pack
March 19, 20242 yr Interesting figures you got. Mine are 35E - 3500mah and 8 amps 30Q - 3000mah and 20 amps https://www.fogstar-wholesale.co.uk/product-tag/18650/
March 19, 20242 yr 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. Edited March 19, 20242 yr by Nealh
March 19, 20242 yr 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 Edited March 19, 20242 yr by guerney
March 19, 20242 yr 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.
March 20, 20242 yr 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.
March 20, 20242 yr 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. Edited March 20, 20242 yr by guerney
March 20, 20242 yr 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.
March 20, 20242 yr 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. Horses for courses. It's the same sort of thing as an Eskuta. It takes you from one place to another with minimal effort. It's not meant to be a bicycle.
March 20, 20242 yr About 40kg? 48V x 35A = 1700W. 40kg shouldn't be a problem while there is a juice in battery. It is not a bike, it is a batpod.
March 20, 20242 yr 48V x 35A = 1700W. 40kg shouldn't be a problem while there is a juice in battery. It is not a bike, it is a batpod. Don't forget that's power from the battery, not from the wheel. The maximum theoretical from the wheel is about 1200w, and you'd only get that in niche circumstances, assuming the max speed is capped at the legal maximum.
March 20, 20242 yr Something like an E-moped weighs about 70kg. In comparison, my old 1980s Honda CB125 weighed i believe about 120kg So 40kg is not that bad really. Although it is for want of a better description a bicycle, throttle or no.
March 20, 20242 yr Something like an E-moped weighs about 70kg. In comparison, my old 1980s Honda CB125 weighed i believe about 120kg So 40kg is not that bad really. Although it is for want of a better description a bicycle, throttle or no. Closer to the Honda P50 - the one they gave away free with their cars. You had to help it up hills with pedalling, pedal it to start and do a lot of pedalling when it didn't work, which was not fun. Perfect moped for electric conversion: https://www.mathewsons.co.uk/auction/lot/272-1967-honda-p50/?lot=13574&sd=1
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