When you're doing a lot of hilly terrain, it is actually better to have a bigger sprocket. Bigger sprockets (more teeth) produce more torque. More torque = less effort to do more elevation changes. Although generally speaking, a _smaller_ sprocket will be better on range if the ride requires you to be flat out the whole time, which this seemed to require.
I think he meant the he had a smaller sprocket on the motor. Since it's a hub motor, the smaller the sprocket you have, the more torque will be produced.
That was a Hub drive motor made into a sprocket drive ? with diy transmission ? WOW Man that thing is Kicking ass. Remember when you first got it, how fast was it stock ? I wonder if you could hook light up to ignition like a car, turn key and the lights go off even if switch is on or off. THAT WAS FUN thanks for sharing.
Yeah that man Toan is a mad scientist. He was the tuner at a shop I used to work for. He has all sorts of creations. He has a stand-up scooter built from scratch that goes 0-75 in less than 6 seconds. (with over 2 years of R&D..)
Enjoyed the video. You should look into upgrading your controller. I bought one from Lone Star Electrek. They will also program it for around 30$ . My RSF650 is running 60v a Kelly controller KVD7212NX ( FROM LSE) , 14 tooth sprocket. I hit 43 - 45 mph . I also out weigh you by around 100lbs. Check out their comments and my bike and review is there. I'm go to upgrade my Mx650 next.
Thank you for this! I've been looking at controller upgrade options because the Kelly controller just seems a bit complicated for me to learn how to program. My buddy Toan (the guy on the 84V long fast e-bike) actually is running a Kelly controller on both his projects, but took over a year to figure out how to get it running that fast and efficient. I'll look at the LSE controller option
@@PatOutdoors The LSE Kelly controller with the program is ready to out of the box. If you buy the throttle and everything from then it's all plug and play.
@@noce1071 Right, if you get them from LSE (which I didn't know before.) Kelly controllers come blank if you get it from any generic vendor or from Kelly themselves. I wish I knew about this option earlier, then I would have just gone for it earlier on.
I just reached out to LSE to check on availability for their Piggy Back Kits. While I looked through their site, I saw a photo of your Grey RSF. That thing is sweet!
The battery comes with a matching pigtail plug that has a red wire and a black wire. You add a ring terminal to both wires and connect the black wire to ground on the controller and the red wire to power source on the controller.
I have so many videos that I installed a battery on a razor or another electric dirt bike.. it’s two wires and it comes with the matching pigtail connector. Wire the matching connector to the power/ground wires on the controller and plug the battery in.
I use an 11 tooth front sprocket on my razor with a 48v 30ah btr battery and a vevor kit but I only get up to 28 mph. Is there a reason you can almost do 40 with the same sprocket and almost identical kit?
Hey I got the same battery, controller and motor as you on my bike as you and it only goes 21 mph would you know why it does not go 39mph like yours did?
@@Gavingms how much do you weigh? I have an oversized rear street tire and 13-tooth front sprocket. Also you sure your controller is set to full speed? They sometimes come with a 3-speed switch with setting 2 being fastest
@@PatOutdoors also I have the stock controller that comes with the kunray 2000w motor kit and the same btr battery and a 14tooth sprocket, how fast do you think it will go once installed? Thanks..
This is the exact battery I'm using: amzn.to/3KoSQ4h The specs say the charging voltage is 58.4V. Which you are absolutely right to suspect it's a 52V because their 52V battery charging voltage is essentially the same (58.8V, just a tad higher). That's actually what attracted me to this battery.
You might want to look into getting a Kelly controller with a higher amp because the cheaper controller you have from the Kunray kit might be maxed out at 33A like the one I have. Since your battery is around 50A output your controller bottlenecks the performance. You could get 40+ out of the bike if you get a better controller.
When you're doing a lot of hilly terrain, it is actually better to have a bigger sprocket. Bigger sprockets (more teeth) produce more torque. More torque = less effort to do more elevation changes. Although generally speaking, a _smaller_ sprocket will be better on range if the ride requires you to be flat out the whole time, which this seemed to require.
I think he meant the he had a smaller sprocket on the motor. Since it's a hub motor, the smaller the sprocket you have, the more torque will be produced.
Pretty long ride, that bike has some speed haha wicked!
That was a Hub drive motor made into a sprocket drive ? with diy transmission ? WOW Man that thing is Kicking ass. Remember when you first got it, how fast was it stock ? I wonder if you could hook light up to ignition like a car, turn key and the lights go off even if switch is on or off. THAT WAS FUN thanks for sharing.
Yeah that man Toan is a mad scientist. He was the tuner at a shop I used to work for. He has all sorts of creations. He has a stand-up scooter built from scratch that goes 0-75 in less than 6 seconds. (with over 2 years of R&D..)
@@PatOutdoors That is Awesome. Great Person to know :)
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Hey, great video thanks!
Glad you liked it!
Enjoyed the video. You should look into upgrading your controller. I bought one from Lone Star Electrek. They will also program it for around 30$ . My RSF650 is running 60v a Kelly controller KVD7212NX ( FROM LSE) , 14 tooth sprocket. I hit 43 - 45 mph . I also out weigh you by around 100lbs. Check out their comments and my bike and review is there. I'm go to upgrade my Mx650 next.
Thank you for this! I've been looking at controller upgrade options because the Kelly controller just seems a bit complicated for me to learn how to program. My buddy Toan (the guy on the 84V long fast e-bike) actually is running a Kelly controller on both his projects, but took over a year to figure out how to get it running that fast and efficient. I'll look at the LSE controller option
@@PatOutdoors The LSE Kelly controller with the program is ready to out of the box. If you buy the throttle and everything from then it's all plug and play.
@@noce1071 Right, if you get them from LSE (which I didn't know before.) Kelly controllers come blank if you get it from any generic vendor or from Kelly themselves. I wish I knew about this option earlier, then I would have just gone for it earlier on.
@@PatOutdoors I found out about them from a you tube channel ( B Rich ) . He has some really good stuff.
I just reached out to LSE to check on availability for their Piggy Back Kits. While I looked through their site, I saw a photo of your Grey RSF. That thing is sweet!
How does the speed compare on 1, 2 and 3 with the speed selector?
Is that led light plug & play with the upgrade kit very nice?
Where can i find the same battery? the link doesnt work
Can someone possibly explain how to connect the battery to the controller please?
The battery comes with a matching pigtail plug that has a red wire and a black wire. You add a ring terminal to both wires and connect the black wire to ground on the controller and the red wire to power source on the controller.
@@PatOutdoors Thank you Pat, love the bike!
will a vevor 2000w motor work with the battery?
Depends on the controller you are using. It has to be compatible with the same voltage battery.
Do you have a video of you hooking up the battery, I just got the same one and need help.
I have so many videos that I installed a battery on a razor or another electric dirt bike.. it’s two wires and it comes with the matching pigtail connector. Wire the matching connector to the power/ground wires on the controller and plug the battery in.
Looking for a good battery without any probs or long shipping times…. Any lead? 48v motor
I use an 11 tooth front sprocket on my razor with a 48v 30ah btr battery and a vevor kit but I only get up to 28 mph. Is there a reason you can almost do 40 with the same sprocket and almost identical kit?
This isn’t a vevor kit. It’s a Kunray kit with an upgraded controller, 13-tooth sprocket, and a 10x3.5” street rear tire (larger overall diameter.)
@@PatOutdoors oooh, thanks for the help.
What battery do you use and what's the range and run time?
@@PatOutdoorsis there a different in what my speed with be between a kunray kit and just a 150$ 2000w kit I got off eBay
@@PatOutdoorsand what upgraded controller did you get
Hey I got the same battery, controller and motor as you on my bike as you and it only goes 21 mph would you know why it does not go 39mph like yours did?
@@Gavingms how much do you weigh? I have an oversized rear street tire and 13-tooth front sprocket. Also you sure your controller is set to full speed? They sometimes come with a 3-speed switch with setting 2 being fastest
@@PatOutdoors about 125 ish
What’s the max speed you’ve been able to reach so far with this build setup!
"Real Speed" about 37 MPH flat ground. Obviously hits 40's downhill
Hey Pat, I wanted to know how tall you are for a reference on the bike 😁
Hey! I’m 5’8”. The bike is lifted about 1.5” during this video though (has a DNM 165mm rear shock installed)
@@PatOutdoors so you don’t have any suspension changes
@@user-eo1yr3cw9l only a DNM rear shock at the time of this video.. this bike is very different now.
in the 48v 20ah set up what sprocket size did you use 😊
the motor sprocket?
13 Tooth
do you think it is able to wheelie?
@@braydenstonge1 yes, though 11-tooth would probably make it easier to wheelie since more torque
I want that cargo bike
Yo, I have the same exact build and I’m about to build it, how do I connect the battery to the controller?
With the pigtail connector that came with the battery.
@@PatOutdoors thanks
@@PatOutdoors also I have the stock controller that comes with the kunray 2000w motor kit and the same btr battery and a 14tooth sprocket, how fast do you think it will go once installed? Thanks..
@@chetanlangan4182 depends on your weight and rear tire overall diameter. Probably around 30-35 mph though.
What AH is the battery used in this video?
Was 20AH 48V at the time
In the last video I noticed you charged your battery to 58.8 volts but you have a 48 volt battery. You're only supposed to charge those to 54.6.
It depends on the battery. The manufacturer included this charger and that's the spec they went with.
@@PatOutdoors so it's a 52v battery?
This is the exact battery I'm using: amzn.to/3KoSQ4h The specs say the charging voltage is 58.4V. Which you are absolutely right to suspect it's a 52V because their 52V battery charging voltage is essentially the same (58.8V, just a tad higher). That's actually what attracted me to this battery.
@@PatOutdoors I guess that's why the dimensions were different. You thought you were getting g the smaller 48v and you really got the bigger 52v. Nice
How many miles does it go on single charge?
This is an older set up with a 20AH 48V battery, 27 miles. Now was a 72V 20AH battery, 52 miles if I'm coating low speed.
thank you! @@PatOutdoors
How is the torque on this?
It's okay, but could deff be better with a better controller with a higher amperage rating. I already upgraded it since this video.
@@PatOutdoors I am thinking on getting a Kelly. Are they worth the 300 for the piggy back kit?
You might want to look into getting a Kelly controller with a higher amp because the cheaper controller you have from the Kunray kit might be maxed out at 33A like the one I have. Since your battery is around 50A output your controller bottlenecks the performance. You could get 40+ out of the bike if you get a better controller.
Yes! Looking at the Kelly controller kit by Lonestar Electrek that comes already pre-programmed.
what was the range before with the sla batteries?
It's been a while.. I want to say 8 miles? Here's when I actually tested it: ruclips.net/video/IovR2y2P82U/видео.html
Virginia, hands down the worst state to exist.
I guess I should move now?
@@PatOutdoors😂 I guess you have too
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