Purplecycle

My first batch S18 has been a nightmare: - Faulty motor bearings out of the box - Faulty suspension linkage bearings - Misaligned suspension - Battery bases had the infamous metal bar in the middle, which prevented the suspension from functioning correctly. Removing the bars did not help much, so I replaced the battery bases with batch 4 parts. - Warped inner fender, rubs against suspension linkage - One of the pedals broke after ~2000km (note I do not do extreme jumps) - Trolley bar broke ~2500km (although it lasted more than on my 18L — I have to replace those every 1500km) - Pedal axle broke at ~3200km - Stopped charging 100% since I hit ~3000km (pending check battery packs) Subsequent batches probably resolved most of these issues, but this has so far been the worst investment I made in an EUC. That said, would I buy it again? Definitely yes. The S18 is a great wheel and I absolutely love riding it. I recommend buying it from a certified reseller so they can help with warranty, parts, etc. l My only wish is that Kingsong would resolve all the quality problems and maybe release a beefed up version with a bigger battery.

Is your S18 batch 1? Check out this post I found on FB. Seems like other people are having the same issue and, according to the post, some of the batteries may have become disconnected (vertical alignment within the packs + vibrations).

Thank you for your kind reply. Hopefully your issue gets resolved soon.

I am having the same problem. How did you end up fixing it?

Hi, I am having the same issue. How did you end up resolving it? Thanks.

I am also having some issues with the riding position. My pedal base is at the top setting, so I can get maximum clearance pedals-ground. The problem is that with this setting, my feet cannot rest evenly on the pedals without the pads digging into my calves. I even thinned down the pads, which made things better, but I still cannot ride comfortably even after 1500+ km. One solution I thought of is wider pedals (similar to those of KS18XL); however, there aren't any on the market, as far as I know. Either that, or installing an extended plate over the existing pedals...

Same here with the power drain...quite annoying, as I leave it charging overnight only to find it at 90-something percent in the morning... hopefully this issue will be solved in the next firmware update...

Hi. yes, I used the same ones I used in my 18L: SKF 6203-2RSH/C3 The old ones were quite damaged because of the dirt that got inside (bad quality seals).

I have about 500km with the C-1488. My S18 came with the 5102 (slippery as hell; it caused me to fall quite badly once because I slipped on a wet paved road; plus it got a hole in it -- no puncture -- before the first 200km) and as soon as I installed the C-1488, I lost fear that I may fall when taking corners, going through muddy patches, etc. I gained in traction (not just off-road with mud, grass, etc. but also in the city), but lost a bit in stability due to the line in the center. I got used to it, though, and my overall experience has been good. I am looking for other options, though -- ideally a 'hybrid' tire that will work well off-road, but will also behave nicely on the road. I am thinking something like the stock tire on the Monster 100V. The Heidenau K66 80/90 -14 TL 46 P RF looks like a decent option for me.

You are the man! Much appreciated! I found most of the screws online so I will be ordering them probably this week. On Friday I replaced most of the bearings and added washers to the suspension (without taking the wheel apart, so I missed a couple of bearings) and I can say the suspension functionality has improved by at least 40-50%. My wheel has another issue: the fender is too large, so whenever the suspension gets pushed down (almost) all the way, the inner fender rubs and the plastic chassis gets stuck. I already cut off a small part of the fender but I have to cut some more. Anyway, thanks again for the hard work and time you put into creating this post!!

Hi Lukasz, I have just sent you an email. Thanks.

Thank you! Thank you! Thank you!! You have no idea how much this helps! You made my day! I was quite discouraged with my S18, but your guide really gave me the hope and energy I needed to plan on fixing the suspension and alignment issues! Not to mention the other issues! (trolley handle wobble, mudguard, etc.) All issues that I also have. It would be very, very helpful to know the sizes of the bolts in your kit! I would like to replace everything with stainless steel, as most of the current bolts have begun to rust (especially the ones used for fastening the pedals!). To your guide I would also add changing the bearings inside the motor (I successfully replaced mine with SKF 6803 2RSH C3 and they run much smoother than the stock bearings), and to me this wheel becomes perfect! I have started to order the parts already, so hopefully next week or the following I can reserve a day or two to take my S18 apart and make all these improvements.

Yep....bent rim 🙄 Gotta see if/how this can be repaired (maybe warming it up and trying to hammer it) without further damaging the rim.

It wobbles, but I am not yet sure why. Might be the tire or because of my bent rim. I will try to post a video. Edit: here is the video

I was finally able to install the CST C-1488 the other day. Grip has improved a lot, and there is no rubbing (well, no more than with the stock tire anyway). I did not have to modify the fender, which was my concern when I purchased the new tire.