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Yose Power ebike kit review

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Yose Power ebike kit

If you’re thinking of converting your bike to electric assist, navigating your way through the huge amount of kits on offer can be mind boggling.  Fortunately, one of the cheapest and most reliable  conversion kits is available on eBay. In this Yose Power ebike kit review I will look at the pros and cons based on my experience installing over 50 of these kits on customers bikes.

Summary

From 2016-2019 I made a living converting bikes to electric assist and one of my favourite conversions kits was sold via eBay.  Yose Power are based in China but sell a majority of their ebike kits through eBay in the UK and EU. I installed my first Yose Power kit in 2017 and was immediately impressed with the quality and performance of the motor.

Fast forward to 2020 and I still do the occasional conversion, since 2017 I reckon I’ve converted over 50 bikes using this kit. One of the stand out things about these conversion kits is not only the price, but long-term reliability is about the best I’ve encountered in the DIY ebike world.

yose power ebike kit review

I have had lots of issues with mid-drive conversions and a few problems with cheap direct drive hub motors but the Yose Power kits have never caused me any major bother. On top of that you get a hell of a lot for your money – it’s one of the few kits that gives you a useful tool kit and headlight.

Below I have outlined some of the key features of the Yose Power ebike kit.

Motor kit

The kit comes in a variety of options and wheel sizes (listed below) and is available as a front or rear wheel conversion – the latter being the more popular choice.

  • Wheel sizes: 26″ / 27.5″ / 28″
  • Motor colour: Silver / black
  • Gear cassette: Screw-on freewheel or cassette (8/9/10 speed)
  • Power rating: 250w / 350w
  • Voltage: 36v

As you can see there are options to suit all the common wheel sizes and gear systems used on modern bikes.

yose power rear wheel hub motor

Potential compatibility problems

The Yose Power kit is designed to fit regular ‘quick release’ front or rear dropouts of approximately 100mm wide on the front and 135mm at the rear. A lot of modern mountain bikes and road bikes have ‘thru-axle’ hubs – bikes with this type of hub would not be suitable for an electric hub motor.

Another occasional problem I’ve encountered is tyre width – this isn’t a problem on hybrid or mountain bikes, but if you’re thinking of fitting this kit to a road bike you will need clearance for a 28mm wide tyre. This is the minimum width tyre recommended for this rim.

Pedal sensor compatibility

A cadence pedal sensor is included in the kit – it comes in the form of a split magnetic disc (secured with a spring clip) and the pick-up sensor. This is usually fine to use with a regular square-tapered bottom bracket axle but it will not work with a Hollowtech type external bottom bracket. If you have the latter fitted to your bike you will need to purchase a separate sensor.

yose power ebike kit pedal sensor fitted

Brake lever compatibility

The supplied brake levers with integrated motor cut-off sensors are suitable to use with cable brakes (disc, cantilever or v-brakes). If your bike has hydraulic brakes or integrated brake lever / gear shifter you are faced with two choices – don’t bother with cut-offs (the motor will run fine without them) or buy specific sensors for hydraulic brakes.

Do I need brake cut-off sensors?

Personally I’ve never used them. The motor will start and stop only when you pedal – even if you use the supplied throttle, it will only work once you are travelling at at least 6mph. In the unlikely event the motor stays on, you can hit the kill switch or apply the brakes hard.

Disc brakes

Both the front and rear hub motor have six bolt fixings to mount a brake rotor if required – it is important you use the disc bolts provided as if you use longer ones they will interfere with the running of the motor.

Motor

The motor supplied with the Yose Power kit is available in 250w or 350w power options. These small hub motors have an internal gear reduction system so the motor is always spinning faster than the wheel. This makes the motor more efficient and produce more torque than a similar direct-drive unit.

yose power rear hub motor

Motor power is determined by the controller – 250w has a 36v 15A controller and the 350w a 36v 18A.  In the UK and EU the law states the motor should not exceed 250w of continuous power – it’s up to you whether you get the 350w version, but personally I don’t feel the extra power is worth the risk – the motor power rating is visible on the hub motor.

Performance

I live at the bottom of a short steep hill (10% over 0.25 miles) and I converted the old Giant hybrid bike (pictured below) for a chap in his 80’s – he rode up the hill whilst simultaneously laughing his head off saying “this is brilliant”! I think that sums up the Yose Power motor. It’s not a speed demon in the way a Bafang mid-drive is but the power it produces is more than adequate for most riders. I used to own a bike fitted with one of these kits and I very rarely used it above level 2 assist (out of 5).

yose power fitted to hybrid bike

How reliable is the Yose Power ebike kit?

Simple answer is very reliable indeed! To date the only problems I’ve encountered have been very minor and relate to the pedal sensor – on some bikes there is limited clearance between the pedal crank and bottom bracket, this can cause the magnetic disc to stick. I have never had a motor fail or cause problems.

One other issue I’ve had a couple of times is on the cassette freehub version – occasionally this fails and can be a pain to fix. If your motor kit is still under warranty then it shouldn’t be a problem as their customer service is usually very good.

Display

On the older kits they used to use the proven KT-LCD3 display but more recently they use a different display which is very high quality and has an aluminium back plate. This is an excellent display, especially when you consider the price of the kit – I would go as far as saying it’s better than a lot of the displays you get on factory e-bikes.

yose power display

There is lots of information available to the rider:

  • Speed (mph or km/h)
  • Pedal assist level
  • Battery indicator
  • Real-time battery voltage
  • Trip function

Accessories

Yose Power are one of the few ebike kit suppliers who include instructions and a toolkit. The toolkit comprises of a full Allen key set, crank puller, chain whip and cassette removal tool. They also include a headlight that plugs into the wiring harness and can be powered on/off by the display. Cable ties are also supplied which is a nice attention to detail.

Ease of installation

Installation is fairly straightforward even for a novice. What you will need is a bit of patience (roughly 2-3 hours) and preferably a workspace and bike stand. Most of the tools are provided but you will also need some cable cutters (to tidy up cable ties).

yose power electric bike kit review

The front wheel conversion is a little easier than the rear as you don’t need to swap out the gear freewheel or cassette. You will need to remove the tyre, inner tube and wheel liner.  Then remove the freewheel / cassette and disc rotor (if you have disc brakes). Then you transfer everything to the motor wheel.

Fitting the wheel can be a bit tricky as the hub is a little wider than the standard 135mm – on alloy and steel frames you will need to splay the drop outs by a few mm to get the axle to drop in.

Then it’s a case of mounting the pedal sensor, battery, controller and display – plug everything in, tidy the wires, charge the battery and you’re good to go. If you’re not confident in doing the job yourself I would try a local bike shop as more and more are doing conversions these days.

Battery

Some of the Yose Power kits are supplied with a battery. These kits are great because the controller is integrated into the battery mounting plate – this makes for a really neat installation. Batteries available are usually 36v 12.5Ah and these battery packs seem to be very reliable.

yose power ebike kit review

Yose Power ebike kit review conclusion

I personally think that if you’re after a cheap electric bike kit that’s going to perform as good as a hub motor found on something like the Carrera Vulcan, then you can’t go wrong with the Yose Power kits. When it comes to quality they punch well above their weight.

They perform well, they’re reliable and can be used for leisure riding or commuting – I did one back in 2017 and the guy used it for commuting 5 days a week for three years all through British winters and it was still running like a dream!

I always recommend these kits for their simplicity. Even if the motor packed up after a couple of years, they’re easy to fix (for the DIY minded) or cheap enough to just buy another kit.

The Yose Power kits represent an affordable entry to the world of e-biking – if you want to breathe new life into an old hybrid or mountain bike, these kits are the best value by far.

Where to buy the Yose Power electric bike conversion kit

eBay UK

eBay Germany

eBay France

eBay Spain

Thanks for reading, if you have any questions please use the comments section below. I usually respond within 24 hrs.

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Yose Power ebike kit

£215.99
9.2

Value for Money

10.0/10

Performance

7.5/10

Reliability

10.0/10

Pros

  • Best value ebike conversion kit available
  • Excellent quality
  • Decent performance

Cons

  • Compatibility issues with some bikes

22 thoughts on “Yose Power ebike kit review

  • May 4, 2021 at 4:46 pm
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    Hi Tony,

    Thanks for the thorough review. I know you’re not tech support for these guys but wonder if you can help…

    I just installed a kit from these guys and had it working before it was all fully fitted. Now that it’s all in place on the bike I can turn the battery on and see it has power, the controller is getting warm, but the display will not light up (neither will the PAS sensor). I’ve tried taking out every connection and putting it back in again and again but not getting any joy. Is the most likely option a faulty controller or display? Or are there any common issues you’ve come across that I could be falling foul of?

    Many thanks,

    Robbie

    Reply
    • May 4, 2021 at 7:54 pm
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      Hi Robbie,

      That’s not a problem I’ve encountered before with the YS kit. It’s unusual that the controller is getting warm – that shouldn’t feel warm until you’ve been riding it with the assist on for a while. I suspect there could be a problem with the wiring loom possibly causing a short, but it’s hard to say without seeing the bike in the flesh. It’s worth inspecting all the pins in the connectors as they can easily get bent. If they’re all okay I would contact YS to see if they can either send out some new parts of accept a return.

      Let me know how things go.

      Cheers,
      Tony

      Reply
      • May 5, 2021 at 11:33 am
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        Thanks for this Tony. I am speaking to the supplier to hopefully resolve this. I appreciate your time.

        Reply
        • May 5, 2021 at 2:01 pm
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          You’re welcome👍

          Reply
  • April 28, 2021 at 11:20 am
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    Hello 🙂

    I posted a question few days ago but for some reason it disappeared. Just in case that you havent seen it im reposting it again. Im interested in buying yose power kit with downtube 36V15Ah battery and rear motor kit with casette, and these are my questions:

    I have Jamis citizen 3 with 700x38c tires ( i guess 28″ wheel). My downtube is rather thin with 4.7 cm diameter. Is it smart to go for downtube battery or downtube thickness is not an issue when choosing a battery? I thought of buying rear rack battery but i assumed that it might be to much weight for the back wheel with motor included.

    Best regards
    Josip

    Reply
    • April 28, 2021 at 11:36 am
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      Hi Josip,

      I had a look at the Jamis Citizen 3 and if it’s the low-step frame version you won’t be able to fit the downtube battery in there. A rack-mounted battery would be the easiest option, or you could drill a couple of holes in the upper tube, fit riv-nuts and mount the donwtube battery there. The dimensions of the YosePower downtube battery are approximately 365mm x 110mm x 110mm. I have fitted quite a few rack mounted batteries over the years and I’ve never had any issues reported.

      Regards,
      Tony

      Reply
  • April 27, 2021 at 11:41 am
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    Hello 🙂

    Im thinking of buying conversion kit from yose power but im not sure what type of battery to go for. My downtube is rater thin, so i tought that going for downtube battery is not such a great idea. I was thinking about buying rear rack battery. Is there any difference in performance between the two if they have same specifications? Also, does downtube thickness play an important role when choosing a battery? These are the batteries i was considering:

    https://yosepower.com/collections/e-bike-battery/products/36v12-5ah-ebike-battery-with-black-rear-carrier

    https://yosepower.com/collections/e-bike-battery/products/36v-12-5ah-down-tube-battery

    Also, what is the difference between 36 v and 48 v batteries, in means of performance, and is there a big difference between 12,5 Ah and 15 Ah batteries?

    Best regards
    Josip

    Reply
    • April 27, 2021 at 2:10 pm
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      Hi,

      Looking at the frame design of the Jamis Citizen 3, You will need to purchase a rack battery as there’s no mounting points for a downtube battery.

      Most of the YosePower kits are 36v so you will need a 36v battery. The Ah rating refers to amp hours – to get the total energy capacity you multiply V x Ah = Wh (watt hours). A higher Ah battery will not improve the motor performance but will mean a greater battery range – a 15Ah battery will give a slightly better range than a 12.5Ah.

      Let me know if you have any more questions.

      All the best,
      Tony

      Reply
        • April 28, 2021 at 11:43 am
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          I’ve just found some more images of the Jamis and if yours is the regular frame version then you should be okay. The only potential problem I can see is lining up the bottle holes with the battery mounting plate, but this can usually be overcome by drilling an extra hole in the plate.

          All the best,
          Tony

          Reply
          • April 28, 2021 at 11:50 am
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            Yes, its the regular one. Thank you very much for your answer.

            Best regards
            Josip

          • April 28, 2021 at 1:57 pm
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            Ok, i have one more question 🙂 I would have to drill 3 new holes (existing ones are not in line with the size of the whole set) and one hole, the one on the top would be in an akward part of the rim. Rim is not that round in that part, its even thiner and kind of spiky. Is it advisable to put rimnuts in that part?

            Best regards
            Josip

          • April 28, 2021 at 2:43 pm
            Permalink

            Looking at the position of the bottle holder holes, you may be okay. You only need to fix the battery using a minimum of 2 screws. On the Marin bike featured in this article I turned the battery the other way to fit it. It’s not aesthetically ideal but it does the job.

            Regards,
            Tony

          • May 1, 2021 at 3:17 pm
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            Hi Josip,

            I have used these batteries in the past but never tested the full range potential. My customers used to get around 50-60km using mixed levels of assist – I would imagine you could squeeze 100km if you were using level 1 and you didn’t need to climb any big hills.

            Regards,
            Tony

  • April 23, 2021 at 8:43 pm
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    Hi would this be suitable to fit on a ladies Halfords Carrera Crossfire 2 hybrid bike. It has disk brakes. Which would be the better lighter option with least resistance. Only want to use it for the killer hills. Thanks

    Reply
    • April 23, 2021 at 8:50 pm
      Permalink

      Hi,

      Yes, the motor weighs around 2kg and battery is about 3kg, because it’s a geared hub motor there is virtually no resistance when pedalling without assist.
      Regards,
      Tony

      Reply
  • April 23, 2021 at 3:51 pm
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    Hi would this be suitable to fit on a ladies halfords carrera crossfire 2 hybrid bike. It has disk brakes. Thanks

    Reply
    • April 23, 2021 at 4:25 pm
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      Hi,

      Yes it will fit a Carrera Crossfire 2, you’ll need the 700c / 28″ wheel version and if you’re going for the rear motor you will need to choose the gear cassette freehub version (as opposed to the screw-on freewheel version).

      If you are buying the whole kit with battery, the frame mounted battery will not fit inside the frame, you will need to mount the battery on the rack if possible.

      I’ve converted a couple of Crossfires in the past and they’re fairly straightforward to convert.

      All the best,
      Tony

      Reply
  • April 10, 2021 at 10:11 pm
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    Hi Tony,

    What are the main reasons that makes this kit a better value than the Bafang’s 250W BBS01B and how would they compare to each other?

    Is it true that there is no power switch on their default 12.5Ah battery?

    Thanks

    Reply
    • April 11, 2021 at 9:32 am
      Permalink

      Hi,
      That’s correct, there is no power switch on their 36v 12.5ah battery.

      Regarding comparison between the Yose Power kit and Bafang, it depends on your usage and budget. A BBS01B is going to produce a lot more torque and will be more efficient plus the finished product will be neater. But there is noticeable pedalling resistance when the motor isn’t in use and you’re limited to a single chainring. Long term reliability can also be an issue. The Yose Power kit is better suited to moderately undulating terrain and produces very little resistance when the motor isn’t in use. You can also retain your existing crankset. The YS kit is also much more reliable in my opinion. If I had to choose between the two I would go with the Bafang, but I can repair it if it goes wrong. If you’re happy expect to service the motor from time to time then the Bafang is a great motor. But if you want a kit you can fit and forget, the YS kit is hard to beat.

      I hope this helps, if you have any further questions please let me know.

      All the best,
      Tony

      Reply

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