Is the QS 165 a Worthy SurRon Upgrade? | Testing and Review 

I've been waiting for this video. Thank you.

Great video guys. I just finally got a battery and my controller from you installed. Couldn't be happier with it :)

Thanks for the info, great video guys, keep up the good work .

What would I do without my favorite youtube channel? Superb content as always

Nice... been waiting for this one!

Are you guys stocking bac4000 brackets soon ? I have one but no brackets??

Great video I've been debating on this set up. One thing I'd recommend trying/comparing and correct me if I'm wrong but of course do you have exact gearing set up ratio? If so my main concern as I instantly noticed the wheels.... If you want the BEST scientific approach to truly see I'd make sure both rim AND tire dimensions are the same as you mentioned his "mid pull" on the drag could come from a slightly higher top end due to a higher ratio roll out on wheels/tires alone 1/8 inch can easily Make that pull happen providing higher top speed. Rotational weight as well (weight lbs x 3 it adds up on rotational force of outter rim/tire weight) Shoot chain ring and heavier chain can make small differences but when you have 3 or 4 things that are different it can certainly add up (check psi too so rolling resistance is equal as can be) one of you may be lighter toss a backpack on with weight 😂 hey who knows?! But overall great video for half the price I'd say its a steal value wise you tighten up these things and I guarantee apples to apples would be very minor considering stock motor was MADE for that frame specifically. For someone who doesn't have the $ to drop on new bike it could be a great build for sure. Fyi- if his wheels are slightly heavier and taller and if he weighs slightly more it could be why his amp draw is higher giving him that extra pull. Resistance ultimately will force more amps to be drawn allowing that power to pull away with ratio. But anyways great job 1/2 price and that close of a comparison I think I made my choice thank you!

@ e- Motos, can you guys review the K.O motor ? i really feel like this would be an actual upgrade to the stock motor on the Sur Ron as well as their controllers, they are coming out with a new nano version too!.

Hey Boys, love your work👍 I'd be interested what amps you pull on a smaller sprocket obviously being lower KV lower gearing should make that QS at least in line with the stock motor👍 We've been running the KO RS for some time and it's a game changer over the standard motor for sure. I wouldn't recommend a 64Tooth sprocket, 60 is considered the max from our testing. The MX motor you really need a 42 Tooth to get it to pull over 150Amps The original MX

Hi need help my qs motor goes back wards instead of foreword

You can compensate for kV with smaller sprocket, it would be interesting to see the results

Any thoughts on the 2.0 leaks? Looks to be a larger chassis etc.

So there is a 10kw version of the qs 165 out recently. Think you guys would ever review it?

love surron geekism

if the qs165 is more similar to the KO motor, would regearing allow you to pull more amps?

The QS has 7 poles and the stock 6 poles does that change settings much?

Qs came out with the v2 I think it would be cool to do a side by side comparison to see if they fixed any of the problems mentioned in the video

For the perfect e-bike for the best price woud be : An improve motor than the one of sur-ron With 72v 50 ah battery 20s 10p using LG M50LT. With 140 amps controlor so 12 kw peak power. Rockshox boxxer select fork Rockshox vivid r2c Spring Magura MT5ePro brake 17 inch wheels with Shinko sr241 48T sprocket 220 mm floating disc 60 MM rise handle bar Fisher Fabhouse headlight frame with x 1,25 bigger so you don't need seat extender for tall people. And a price around 7 k. If someone can pull out a e-bike like this would be amazing, and I think the price tag of 7 k would be possible with great volume !

Can I push at 20kw

How about swapping a x160 motor- would it be worth a qs-motor swap

What your light

Common guys, what do you mean "motor dont want to take more power"? Really? Tune settings on controller. You can push any ammout of current to the motor.. we push in our motor 32kw..

I run a 165 with a FarDriver ND72600 and i run 13.5 kw on a 60v battery with a 56t sprocket. The FarDriver allows me to set its max power and max rpm so its running that at 12k rpm. Its silly fast

you're using ASI. you can easily see the KV rating in your settings