How To Get More RANGE On Your Sur-ron/Segway 

Can you tell us more about your buddy's mx Sur Ron? I'm sure more than I would like to see more of it.

Great useful video, thanks for the info. It's a no-brainer to change to 58T...or even more.

This is so useful, thank you. I own both a Sur Ron and a Cake Kalk&. I am going to change my & 72t sprocket to the OR 80t which is the largest they have right now. Even though it will reduce my top speed for the street it will still be fast enough for the roads I travel. And since extending range is my goal I'm hoping this will work on the Cake. Thank you for this test. Sustained high speed (40+MPH) on the road to get to offroad areas really sucks down the juice. I have figured out a way to charge my bikes (both the SR and Cake) at level 2 EVSE charging stations which is a game changer for the dual sport Kalk&.

Great information. Subscribed 🤙🏽

Thanks, that's some very useful info.

Great review 🙏

thats a big difference! thanks man!

Nice vid man! Good info for when mine arrives.. I’ll take off the regen and the brake assist so I can coast on the trails … Was that a Tim’s cup I see? Lol

Great real world test, Thanks.

Great stuff! I would really like to see some acceleration figures using different sprockets. I would expect a significant difference.

I put a monstrous 64 tooth on my Sur Ron X. On my 48 tooth, I got a top speed of 48 mph and on the 64 tooth, I get a top speed of 35 mph. The 64 tooth turns the bike into a great rocket for stop and go riding and carves up the hills of San Francisco. My body weight is 240 at 6 foot tall. I did notice that my battery seemed to be lasting longer. You have to use a gps app to see your actual mph. Cheers.

I need a rear dual sprocket. 68t for torque riding under 20mph. And a 28t sprocket for the highway to keep up with the 80mph speed limit.

Very informative video. Thank you

You are absolutely right.

Great video man. Where can I find videos of your boy Shneed? I'd love to see his set up.

Someone needs to invent a derailer and multi gear cog for the Surron. Even if it’s only a 2 speed setup.

thank you for your work. this will help me and others a lot. the only think would be: does this also apply for doing long tours on easy terrain or street. I think of that: In a race like yours you have a lot of breaking and acceleration. With higher teeth on your sproket you need less power to accelerat. But when you have allready speed, you would need a higher rpm to maintain the speed. But of course you need also more power to stay at that rpm with less teeth. So the question is: Does the surron take more battery when opperated with higher rpm and need less "power" to hold the higher rpm, or does it need not so much when operating with lower rpm but need more "power"

Well done :)

Great video

Could you highlight your friends bike in a video? I really like his seat mods! I'm racing hare scrambles in Colorado this year cuz of you!

On my motorbike a larger rear sprocket made my fuel economy worse. This is great info though as I'm looking for longer range e-adventuring.

Excellent info. While you are racing, that's exactly the terrain that I prefer to ride. I have a 58T on order. I subscribe and should know, but are you using other than stock controller or battery during these runs? It could affect the results?

want even MORE range? make the wheels lighter. make the wheel sprocket freewheel with a pawl clutch system like on a mtb. use slimmer but taller OD tires. tires with a more dualsporty tread style. set the suspension so the front is softer, but the rear is harder. try braking less. drop the seat lower, and the bars too. eliminate batery sag. go higher voltage for more eficiency. less start and stop less slow down and speed up = more range. yeah i think that abt covers it lol. you might wanna go dual belt too, to further make the bike lighter and the drivetrain too. but havent looked into that fully yet, i do know BMX chain/track bike chain would extend range for sure too, but that means you need to swam chains 50% faster

Impressive! How about the riding? More snappy? Faster out of corners? Better laptimes?

0:39 cool build! Where can i read about this red surron?

Bruhh thats insane

I wonder what the range difference is on a flat paved road would be, staying at a cruising speed of 25-35mph.

OK good for increased distance but what was the time difference on laps on each sprockets

Hey great job exsplaining this subject. I put a 54 on mine now I ordered a 58 & there almost impossible to get , I’m waiting 6 weeks . Tires are the same , if there the hot tire to run on Sur Ron there outta stock also . Fuck If I knew then what I know now I would of gotten a 58 off the start . Gas vs elec there way different like you explained.

Could you tell us about your friends mx sur-Ron or link a RU-vid video on the upgraded etc. I was wondering what he did to it?

What seat is your buddy using looks more comfy than the standard seat.

Same as a motorcycle, more teeth accelerates faster, less strain on engine, lower top speed. So less strain means less current draw from battery.

Just a interesting thing though I do a lot of road riding (extended time at WOT) to get to my short off-road trails and I swapped to a 52t sprocket from the stock and I got significantly worse range just going up 4 teeth when I swapped back to stock sprocket I was getting home with 20% more battery than with my 52t sprocket, I wish I could use the 52t I love the torque and quality of the sprocket itself but I’m stuck running the stock one I guess.

This analogy is the same as gas cars with respect to LOAD...with the 48 T and doing the trails compared to the 58 T there was too much load on the motor, hence the lever was improved using the 58 T sprocket. My Fiat 500 with only 101 HP revs at 2500 at 60 where my Challenger is coasting at 1400..because the smaller less powerful motor would actually use more fuel if the gear were taller and the RPM's were lower because the load would be too much. Im waiting for my Sur ron and one of the first things ill be doing is making another 30 ah 60 volt pack run in parallel under the seat in a nice designed case with brackets and a thick gauge wire running to the original battery. Has to be running the SAME ah as the original or you get into issues with the bigger pack trying to charge the smaller when its out of juice..I see some people running a smaller 20 ah in parallel and that isnt a good idea. That would save you from switching out the packs but would add some weight carrying the additional pack, but for me it doesnt matter.

Did you make a comparison of your laps time?

interesting what about lap times where you faster on the 58T as well?

Obviously you are referring to competition use. What about road usage ? If I wasn't concerned about acceleration and just used the bike for commuting, would a smaller rear sprocket allow for greater range ?

top speed significantly decreased so depends what u use surron for tight trails big sprocket would help but flat ground cruising u will loose all top speed so up to you preference really

sweet...... i cant wait till they start makin options 4 us all belt drive guys 2 ...lol

Will different size/amount of teeth increase climbing abilities ie steep hills if so do you have recommendation?

Do you have the stats to compare your average lap times with each sprocket? It's well known that top speed is reduced, but your lap times would give a great comparison for overall impact of sprocket changes for trail riding.

Sounds counterintuitive to lower your gear ratio and increase your range. But I guess it lets the motor work in a more efficient RPM range.

Is Luna Cycles the best way to get one of these? If I wanted to save some money, is there a better option?

Did a race on stock 48 t and pushed 1 mile to the finish . change the chain sprocket and 16in wheel i hope the range improves . people saw the bike rip but sur run should have way better parts the bikes never look like stock all mod to get it right

Hi mate! This is really useful Content! thank you very much! there is one question from my side: have you been faster with the big sprocket ? what was your difference in Racing time? Best regards THOMAS

Nice video btw. but can u tell me how your frend made the sur-run look like a dirkt bike ?

i understand what your saying but when you say i used 46 percent less battery most people interperet that as you used nearly half as much battery, but in reality you meant 46 percent out of 200 percent which is closer to like 23 percent less battery overall, you should do that conversion when making statements like 54t sprocket used 46% less battery.

Do you want to try a 64 tooth? It might be even better. It is my personal favorite. I will ship you one from Sur-ron USA

Does the change in bigger sprocket gain range but decrease speed? 🤔

If you get more teeth on a sprocket will it make you have more torque or less?

What would happen if u had a gearbox then

What was an average speed in mph u did the lap? Where is sweet spot of speed in 58

That's weird cause on electric RC when you raise the pinion to a higher tooth gear which will give higher top end and less torque it makes the motor run hotter and uses more battery. Seems opposite here?

How did your friend retrofit those Honda plastics on it?

so how many teeth should i get if i just want as long range as possible?

Hello friend more range now is more torque

What is schneeds channel?

So it seems to be a similar percentage increase in range to tooth count

I went with a 52. I wanted a 54 but not available...

so wouldn't 33% left of 200% mean that you used about 15% less battery with the 52 tooth sprocket ??? ... per cent meaning "out of 100" and all (it's a math thing)

so witch one has longer range ?? 48

What about on the road? Does it still extend range?

Bro you can get 48mph but it takes more time to reach that speed🤗

sounds like a transmission would help electric bikes be more efficient. I dont understand why they are not on most ebikes, to save cost?

why only 20 miles per battery??

I want to send you a 64 tooth but I don't know where to send it

I just want to see more pics and details on that Motocross bike at the beginning of the video.

Does your buddy have a channel?

You started bad but after 5 seconds I liked you and enjoyed the video.. Don't do the coffe thing anymore

What this shows is that your bike's power system is overloaded with the stock gearing, and that is ruining the efficiency. If the rider was 20lbs lighter the results would not be the same.

ive heard that putting the higher tooth sprocket greatly decreases ur acceleration and top speed tho

20% vs 25% means 100% vs 125% = 25% more real range