ENGWE EP-2 e-bike / Changing The Freewheel Sprocket.
Вставка
- Опубліковано 26 вер 2020
- After a little use, I decided to fit the spacer that was behind the original freewheel. I didn't like how close the derailleur was to the wheel.
This is a great modification you can do to your e-bike, and makes riding more pleasurable. The original freewheel has a 14 tooth 7th gear, 14/28, and because of the speed of the EP-2, you find yourself running out of pedal, or at least pedalling way too fast. This 11/28 freewheel brings the crank rotation down to a more comfortable pace. It's a simple job to do with worthwhile results. I do wonder why ENGWE didn't choose to go with the 11 tooth, it would make more sense.
Here are the specs for it. 11-13-15-18-21-24-28T(39mm, 483g)
Freewheel and tool
s.click.aliexpress.com/e/_d7A...
Bicycle accessories
s.click.aliexpress.com/e/_9JBqCY
20x4.0 Tires
s.click.aliexpress.com/e/_Dk4...
Rechargeable air pump
s.click.aliexpress.com/e/_9RhXCp
GoPro equipment
s.click.aliexpress.com/e/_d9F...
Link to purchase Engwe EP-2.
s.click.aliexpress.com/e/_DC0...
DISCLAIMER: This video and/or description contains affiliate links, which means that if you purchase one of the product links, I’ll receive a small commission which goes towards helping me with producing better content. - Авто та транспорт
Hi, I completed this mod on both our Engwe EP-2 Pro bikes and thought I would share a few thoughts. Firstly, our nothched washers or spacers whatever they are are located on the outside of the frame not inside as yours are. Secondly the notch in the shaft that the motor wire passes through has to be facing up when the bike is upside down to ensure the wire doesn't get cut by the shaft as it will be very tight if the other way round. Also I had to adjust the rear caliper and derailleur on both bikes as the new sprocket moved everything to the other side a bit.
My thoughts on this mod. With the top speed set to 35kph in PA5 we can now pedal and and easily keep up with the rear wheel. PA3 is now 25kph and PA4 30kph. It is fun to boot along at these speeds but there is a big hit to range. With the old sprocket we have ridden these bikes 87 kms on gravel rail bed trails in PA3 and PA4 at speeds between 22kph and 25kph and still had 1 bar of battery left at the end of the ride. Yesterday after riding at speeds between 25kph and 35kph with the new sprockets, our batteries were down to 3 bars at the 27 km so we turned around, at the 54km point we were down to 1 bar and had been for the last 5kms or so. The motor is on almost constantly as you get above 25kph no matter how hard you are pedalling. The whine of the motor is also noticeably louder at the higher speeds.
So while this mod is good for shorter trips at higher speed, if you like to ride long distance as we do, I would say stay with the original sprocket. I think Engwe actually did a really good job with the original setup striking a balance between speed and range. If you ride short trips and want to get there faster, this is a great mod. In our case we will likely only use the higher speeds when on paved roads where we want to get off them as soon as possible,. Thanks for posting it, we used the Aliexpress link you provided, the parts arrived in Canada from China in 8 days and were exactly the same as yours.
Adding an update as of 1 Sep 2023 as we have purchased a second battery for our bikes with 17AH capacity. With this second battery the sprocket mod makes perfect sense. We no longer have to worry about running out of battery as we carry the two spare batteries with us on the rear carrier of one of the bikes. Our average speed yesterday on a 76KM ride was 28.8 KPH, we completed the ride with a moving time of 2 hours 29 minutes. The new sprocket and second battery mean we can head out on longer rides and not worry about getting home and not having to be on the seat as long also a lot more fun bombing along at 32KPH. If interested, we purchased the batteries from Aliexpress Ace power store, the 17AH Panasonic model. The batteries arrived to Ontario Canada very quickly and the customer support from the seller has been excellent, they are always quick to respond to any questions, highly recommend, link is here www.aliexpress.com/item/1005004682857239.html?spm=a2g0o.detail.0.0.4cdb73deeNvABk&gps-id=pcDetailTopMoreOtherSeller&scm=1007.40050.281175.0&scm_id=1007.40050.281175.0&scm-url=1007.40050.281175.0&pvid=0b8f9a75-3d50-43c3-bb97-780e4f573a6e&_t=gps-id:pcDetailTopMoreOtherSeller,scm-url:1007.40050.281175.0,pvid:0b8f9a75-3d50-43c3-bb97-780e4f573a6e,tpp_buckets:668%232846%238112%231997&pdp_npi=3%40dis%21CAD%21416.86%21291.81%21%21%21%21%21%402101c5b116899499533821291e2f38%2112000030101813827%21rec%21CA%21
Did this on my knaap AMS bike and it's amazing no more ghost pedaling if you haven't done this why not it's amazing
We really need you to join our Facebook group, your expertise and videos are just fantastic. ENGWE EBIKES
I am already there ;o)
Midland Bullet Riders dare I ask under what name?
can i ask if i can join the group its alway intresting to new the experiance of there people and also more tips and tricks owning my self the 750Wat model
Potrzebny film dla każdego użytkownika tego roweru, jak też innych super dziękuję i pozdrawiam
Thanks for the great video example. The bike just arrived and when I tried it I felt the need to be able to pedal in a better way as you have perfectly described. I will proceed to the replacement by watching your video guide. Thank you enjoy your great bike.
Ciao
Yes should come fitted as standard really. Definitely needs it.
I bought them and they are great in Spain for the Mountains ridr
GREAT VIDEO I do so like a person who both speaks and shows the way to carry out the procedure. The comment by john6545 was also good as I would not have thought that the bike upside down would have made such a difference, as for why Engwe not putting on the 11 tooth gear could it be that the bike could go above the so called 15.3 mph .As I remember from my early days of cycling we could go over 30 mph just leg power alone and I could cycle 100 miles a day on weekends, but being a lot older oh how I like a bit power help in my older age.
EXCELLENT video…. been wanting to see how difficult the job would be… having the same issue! thx!!
Glad it helped
Thank you so much for this very interesting and well done video. I would like to ask you something, how many teeth does the tool have to unscrew the freewheel?
12
great mod, do you think it also possible to add torque sensor instead the original one?
Great video! You recommend keeping the spacer in when replacing the freewheel as you mentioned in your description?
Yes if you have one fitted. It will keep the chain away from the tyre.
Probably go for a 11/34 and a bigger chain ring maybe a 53/56 or even a 58 if it doesn't foul the rear frame or exceed the stand below when sat on the floor ie-folded. The reason being you'll have much taller gearing in 7th but still be able to climb hills with assist on the 34 tooth 1st gear.
Thought about increasing the chain ring myself, don't know how big you could go before you would need a longer chain though.
@@MidlandBulletRiders just buy a new chain that has more links than the original or add additional links from another chain. Better to buy new though. Litepro do a crankset for sensible money that looks really good on the bike or you could just buy the chain ring on its own. I'm going to try the crankset first on my engwe engine x before I purchase a 11/34 cassette.
Hello, is it possible also to change main crankset ( with more teeth), i replaced freewheel on my C20 PRO 500W, and again at highest gear, couldn't pedal as fast, as motor assist..
BR
Hello there quick question what is the biggest size sprocket you can put on the engwe I was thinking 11 to 12 speed what do you think?
I don't think you will fit that many in the frame. The important one is the small cog for sure. I find I only really use gears 3 to 7.
Maybe 10 speed?
I have changed front and back. Front has 58T back has 11-28T. Can now pedal with good resistance at a normal pace while going at a top speed of 40 km/h. Really recommend doing this when your teeth are worn out. It did need a longer chain.
Great stuff. I's a job I need to get around to doing.
Hi mate. I have the identical bike to you that I bought used with 40 miles on the clock.. however I can’t get 1st gear!! .. I’ve had it looked at by a bike mechanic that says 1st isn’t possible due to the fat tyre set up ?? . That’s a load BS .. but have you had issues prior to changing the cassette ..doesn’t appear to be the normal adjustment screws on my gear set up..any advise ..Alan( new sub)
If you notice on mine, there is a washer behind the sprocket. Not all are fitted with this apparently, but I found the chain caught on the tyre in first gear without it. If it's not fitted, a large washer of some kind could be put on there to bring the chain further away from the wheel.
I was wondering if i could use this freewheel on the Engwe Engine X model.
Does anyone know if the Engine x and EP-2 are using the same system on the back wheel?
Thanks.
Well I gave up the chain ring nut was so tight I couldnt undo it at became concerned I may break it, i cannot understand why yours was so easy , didn't even use a chain whip ?
Do you think it’s possible to switch to 20x3-20x3.5 size wheels? Cheers
Hi ! Would you happen to know the dimensions of that washer for the freewheel? My bike didn’t have it and the 11-28 runs to close to the wheel , need to grab myself one. Cheers!
Not without dismantling, So long as it slips over the hub should be ok. Just needs to push the freewheel away from the hub. Strange how some have it and others don't.
@@MidlandBulletRiders That's the thing , dismantling ! Exactly what I can't be bothered doing AGAIN !. Was hoping you might have taken note of the size. Thanks for the reply.
Hi! Can i use a cassette instead of freewheel ? And is it better ?
No, it's a completely different fitting onto the hub.
Hi Sir ,Do i need to buy the removal as well or just the freewheel?
Yes you will need the removal tool.
@@MidlandBulletRiders thankyou for the info! ,one more quick question ; do you know where i can buy a new bycycle chain as well? Thankyou!
The sensors use the pedals to measure power boost with little magnets , the faster the chain ring passes them, the more boost...so a higher gearing slows down your cadence and those sensors see that you are pedalling slower, doesn't that mean less electric motor boost and you replacing it to do the same speed? Maybe Engwe don't do it because there's no benefit on a road legal bike already illegal here and on the limit most other places? Nice video again. I just had a wierd problem on mine, the brake cable was odd, turned out it was frayed inside the outer sheath and getting worse, easy fix, just threading a new inner without removing anything but the inner. The way the cables are routed I was dreading replacing the whole thing.
The Ep-2 has a cadence sensor which delivers a uniform amount of assist at each assist level, regardless of the amount rotations or pressure you are applying. The pedals just need to turn. The one you thinking of could be a torque-sensor.
Hi chaps. I agree with MBR that the cadence sensors only seem to detect rotation and not speed of rotation. The assist kicks in after a certain number of rotation of the front chainwheel so in a higher gear it takes longer to kick in for that reason. That's how it seems to anyhow.
Yep, it's an all or nothing system. It does not matter how much you pedal, the controller will still give the same amount of power. Personaly I think it sucks, a great improvement would be a torque sensor. Great bike anyway, i have mine for 2 months now and I love it.
Hello, is it necessary to change chain? I hawe Engwe C20, same Shimano tourney 7speed
The chain should last a long time as the electric drive comes from the hub. A mid drive motor is actually pulling on the chain, like regular peddling.
@@MidlandBulletRiders ..I asked according tooth length of new sprocket, it is identical as original flywheel?
@@nenobujas6567 Ah right. No need to change the chain. The original has plenty of adjustment for the new freewheel.
Whats the order of the washer and spacers on the side of the wheel opposite the sprocket
Difficult to say as I've seen them in different orders on other bikes. The main thing is to keep the small sprocket away from the frame. On some the notched washes are inside the frame, on others, on the outside.
@@MidlandBulletRiders AHH that might be why the wheel wasn't spinning freely which I initially thought was due to me putting the washers back in the wrong order
Hello, Thanks for the video, i got ep2 pro and i am facing same issue, over 33 km/h pedal are free spin. What about changing chairing for bigger one? has anyone tried it?
Yes known a few people do that. I think changing the freewheel is just a cheaper and easier option.
Thanks, i think i will go for free wheel change and see how it feels can u pls specify the brand and type u have installed
@@ashishjadhav8593 There is a link in the description. You will need the 11-28 size one and also a removal tool to get it off.
@@MidlandBulletRiders Thx!
Hello..Don't know where to buy tires?
I've added a link in the description.
Great video but they are really taking the mickey with the prices in that link provided in the description. The same seller is selling exactly the same thing elsewhere on his shop for £3 less. What a devious seller. Please update the link to the cheapest one available.
Prices seem to fluctuate depending how well they are selling. I've bought many things only to check the next day, and see that the price has risen.
Hello, I wonder, by how many miles has the effective pedalling speed increased by switching to 11 teeth. With my EWP2 750, pedalling is only effective to some 26 km|h, eg. little over 16 miles. How many m/h is peddalling effective with 11 teeth? Thanks for your videos, very nice and inspiring.
Do you mean how fast can you go by pedal alone? If so I'm not sure, I use assist way before that. But the assist speed hasn't changed, it just allows pedal rotation to keep up with max speed. With the original 13 tooth, it is difficult to keep up with, or add more leg power to it. Once you reach the max speed of the assist, the motor will not give you any more, so anything over that is provided by your legs.
@@MidlandBulletRiders i believe how fast can you ride whilst pedaling comfortably and putting in power with your legs
@@markstol2033 Comfortably on the flat 22mph. If I put in more effort than I like, then 24mph. But the 11 tooth just makes it so I'm not pedalling so fast.
Need link to purchase the right freewheel?
Link in the description.
@@MidlandBulletRiders Don't know how I missed that lol
I did find the same thing on Amazon, but with bad reviews (wobble), was hoping for a different brand. Thanks...
@@Grandpa.Dan8881 Not noticed it on mine. Also selects gears just fine. Probably get faulty ones as with most things.
@@MidlandBulletRiders guess I will have to go with the Drift brand then, thanks!
Can never understand why they didn't fit an 11t in the factory?
I know, makes no sense.
cheaper
@@fraserthomson5766 don't think there'd be any price difference penny's if anything
seems stupid to have a black arrow on black background to line them up to reconnect the power.