Xipi Electric Bikes

CyberCrime

100 mW
Joined
Mar 26, 2013
Messages
41
Hi all as anyone tried an Xipi Electric Bike?

I'm thinking of getting there new 2013 silent wing kube 2500 watt version.
Anyone know how good or bad the kit is from xipi?
 
http://www.xipi.co.uk/Silent_Wing.html

Xipi is always striving to keep up with technology & excellence with our latest battery, we have managed to reduce the size & weight, by adding a special battery management and our specially enhanced controller, tuned, striped of frills improving the overall performance, with heavy duty shortened cables this allows us drag every Millie amp out of the Battery & controller keeping losses to a minimum (More connections, longer thiner cables all add to losses).
Sounds great.... :mrgreen:
 
http://www.endless-sphere.com/forums/search.php?keywords=xipi&terms=all&author=&sc=1&sf=all&sk=t&sd=d&sr=posts&st=0&ch=300&t=0&submit=Search
 
They seem to be full of unbelievable amounts of bu11sh1t. Its interesting that they don't give clearer pictures of the motors them selves, or the battery. but the biggest motor, the Silent wing, is likely a Crystalyte HX35XX of some verity. That's no 2500 watt motor, that's a 750 watt motor, and combined with a 48volt 45 amp controller, will have a maximum input of 2160 watts.
And the battery is highly suspicious too. The ebike world dreams of a 48v 15Ah battery that would fit into that tiny little box. Highly dangerous Lipo, some exaggerations of the specs, and some clever trick photography might explain it. (Perhaps the battery box is 12 inches wide, and we're only seeing it from the side so it looks small?)

I've seen some misleading Ebike sites before, but this one looks like pure fraud.
 
About $2000 USD for a nine continent or nine continent knockoff kit with battery?
I could buy 3 of those for the same price elsewhere.
 
neptronix said:
About $2000 USD for a nine continent or nine continent knockoff kit with battery?
I could buy 3 of those for the same price elsewhere.
$2000 USD - HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA - it amazes me the range of prices for kits with very similar capabilities. I am so glad that I did my "homework", researched at length on Endless Sphere and the internet in general and believe that I obtained a great value on a motor kit and battery for my bike.
 
Xipi has been trading for a couple of years. They're one of the sponsors of the UK Pedelecs forum. Their stuff is relatively expensive for what it is, but you get either a ready-made bike or virtually plug-and-play kit, which saves a lot of hassle if you're a noob. They sell direct and from Ebay. Their feedback from 1282 transactions (mainly bikes and kits) is 100%, so there can't be any bullshit. The stuff is exactly what it's supposed to be. I don't have any connection to xipi, but I don't like to see responsible sellers being slagged off without reason.
http://feedback.ebay.co.uk/ws/eBayISAPI.dll?ViewFeedback2&userid=cedar2000-xipi&&_trksid=p2047675.l2560&rt=nc&iid=170863506693&sspagename=VIP:feedback&ftab=FeedbackAsSeller
 
Well, my experience of xipi was not so great. I had a bike from them about a year ago and for a while it was OK. Then the battery holder started to crack. Then the sensor went wrong (a cable became detached inside - I managed to resolder it). And then finally, a few months later the motor stopped working. I took it back to xipi HQ and they stripped it out and it was completely full of rust. No - I don't ride in rivers. I just ride long distances in all weathers and the bike should be able to put up with this for the price I paid. Essentially the motors are not good quality and the system is overall is not up to using say 20+ miles per day in all weathers.

I got a new motor from them FOC when mine died and rebuilt the wheel and sold the bike on ebay for £800. I lost about £500 on this but it will probably be fine for someone who doesn't ride that much. Soon after I sold it, I bought a Scott E trail 29er with the Bosch system. 10 months later I can say this system is the business. I have derestricted it so it goes a bit quick, though not too fast. For £2200 you can't buy better in my opinion. I could also buy this via the Cyclescheme. You can't do that with xipi bikes.

Why spend £2500+ on a what is effectively a kit system built on to a bike when for less you can get quality integrated German engineering which works in all weathers. I ride this bike 3 times per week on a 28 mile round trip. I also own a standard MTB and go mountain biking often (20 years experience and counting). I know what works and what doesn't and xipi loses hands down to Bosch. There is a reason why manufacturers stuff works - they have a massive R&D budget. In short, they almost always know what they are doing. And you get a proper guarantee too from them.

Before people say "what about the testimonials and feedback for xipi?" Well, their feedback pretty much consists all of feedback from people who have just purchased their xipi bike NOT from those people who were initially happy - no doubt giving positive feedback. And then pissed off a few months later owning an overpriced heavy and totally unreliable bike.

As e bike kits go, you should always buy a good quality branded motor. The crank drive Sunstar system looks good. Bafang hub motors also seem to have a good name. The xipi motors are unbranded so I would keep well away from them.
 
Xipi have been around for a while and know what they're doing. Initially they were a bit full of bullsh!t, but then they settled down and became more professional. They'll give you a well-supported solution to whatever you want, but at a price. We can all do things for ourselves, so they look a little expensive, but if you can't do things yourself, you have to pay for something like that Their batteries are OK and exactly as specified. I'd always go for the 15aH one rather than 10ah. I've never heard a complaint from anybody about them on any forum in 2 1/2 years. If you go and visit them, you'll find very open, knowledgeable people.

Their stuff is standard Chinese motors, controllers, etc, so you need to be careful about getting it too wet and all the problems we experience with our self-builds, but at least you get a guarantee with them.

They're also a sponsor, supporter and contributor to the UK Pedelecs forum - definitely not fly-by-nights.
 
When you look at the prices xipi charge and then look at bikes from established brands you can see that technology like the Bosch system wins hands down for durability, weight, usability and reliability. You get so much more for your money from an established brand. When you spend over £2000 on a bike you don't want to be worrying about getting the motor wet! This is the UK so if these bikes are being sold in the UK they must be able to stand up to heavy rain, snow, ice, the lot.

It is farcical to spend this amount of money and then think "Oh, best not get it too wet".

If xipi used decent branded and reliable motors, this would be a start. The ones they use (or at least used to use) are just not up to the job for long term reliability and this matters.

My Bosch motor has been through it all and is as good as it was 10 months ago. The only thing I do is keep the transmission oiled, replace the chain before it wears, clean the bike once in a while, replace gear cables, disc brake pads, tyres etc. That's how it should be in my opinion.

Obviously home builds need more maintenance, but the point is, xipi bikes are sold as complete bikes so they should be more than capable of taking a pounding by the elements on a long term basis.

Each to their own and all that, but I would rather spend my £2K+ on a tried and tested design backed by the support you expect from a major manufacturer (and the support from Bosch is pretty good). At that price I really don't recommend investing in a bike which is effectively a kit bike built with bits that are just not good enough.
 
Bosch motors haven't been without their problems. I guess you didn't get the popping crank or broken gear then, or the motor full of crud because it isn't waterproof. Don't get me wrong: I like Bosch motors, especially the new ones. My point is that you can get problems with anything.

The way I see it, Xipi are charging a premium price if you want a bike that can go fast, and you can't do it yourself. Their price includes a guarantee that you don't get if you do it yourself.

It's only recently that the higher powered hub-motors are becoming more water resistant. I'm sure Xipi would use water-resisistant motors if they could get them, and so would we. Personally, I think you're being a little idealist, but I can understand what you're saying because your experience didn't work out.
 
Well, it seems that you were indeed right on the money d8veh as the day after I posted my comment, my Bosch motor started making some strange creaking noises and is not rotating as smoothly as it used to!

Looks like the drive side floating bearing is not happy. Apparently a problem on high mileage e bikes (mine does a lot each week) going by the experience of some other riders from Germany. So, yes, you are right - nothing - no matter how well designed it is, can be immune from problems.

One of my friends who is an engineer, reckons Bosch need to put a bigger bearing in the drive side as there is a a lot of radial force being exerted on the bearing especially as it is direct drive.

From what the bike shop told me, it is almost certain that Bosch will simply send in a new motor very quickly. I think long term, it would be much better if they were able to supply bearing kits at a reasonable price to those people who would be happy to service them - particularly when they go out of warranty. The drive units are not very complicated to disassemble from what I have read. A bearing no matter how well sealed will always fail eventually (take BB bearings for example - I go through these in about 12 months - 18 months on my other mountain bike which goes off road quite often and gets hammered a lot) so it makes sense to at least be able to replace this when the need arises. It seems unfortunate to me that Bosch just say "here is another whole new motor". They are very protective over their technology rather like the approach that Apple are with their products (take the iPhone as a clear example). Perhaps in time that will change.

I expect Bosch have probably used standard-ish cartridge bearings which can be knocked out and new ones press fitted back in - somewhat similar to replacing bearings in a cartridge bearing hub.

From what I have read, the problems encountered with the Bosch system rarely seem to occur with the actual motor itself - rather it seems to due to the other moving parts in the drive unit. Maybe Bosch have sorted this for their 2014 motor models.

I wonder if anyone has looked inside these drive units to record what the score is with bearing sizes, configurations etc? I have seen a video of someone dismantling one - this is helpful - but it would be nice to know more info on the bits inside.

Still, even with this current problem it has proved itself to be more reliable over time compared to the last e bike I had. E bike manufacturers could learn a lot from real life users rather than people spinning round on manufacturer sanctioned test rides.
 
An update - my Bosch motor was not broken after all. Turns out it was a very badly worn chainring which was causing problems with the drive unit locking up due to the chain jumping around on the worn ring. Replaced the ring with a 44T steel one and all is now perfect. Much better to have a steel ring on there considering the amount of miles the bike does.

I have ridden the bike through terrible weather and it has not complained once. Well done Bosch!
 
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