Nuvinci N360 hub

[ferro]

My friend is running the N360 with a 1800Watt mid drive setup. He also experienced the loss of range problem, it turned out to be in the shifter. Fallbrook said they have had some shifter issues and sent out a updated shifter and cables free of charge. Also he just noticed the hub is leaking fluid the other day. Not sure what is going on yet, riding and monitoring at this point. I'm not sure if this is the result of too much power, or it could be the result of a recent fall.

[Green Machine]

I just blew out a Nuvinci n360 running approximately 4000 watts to it.

During shifting between gears, i heard a loud snap.

Now the back chain freewheels as if the nuvinci is stripped.

I am thinking the n360 was holding up pretty good, and i have heard it make unhappy noises when applying throttle after shifting.

I think i will try another hub and this time be more careful when shifting.

[Stevil_Knevil]

That loud 'snap' may have come from one of your 3 freewheels grenading ..check them 1st..

[MattyCiii]

Yeah there's a freewheel there on the right side - not hard nor expensive to replace. I've done it before. Look at the bottom 10% of this page: http://www.parktool.com/blog/calvins-co ... i-360-Hub+

[Green Machine]

Oh thanks guys that would be relief.

It certainly feels like a broken freewheel since the bike freewheels now in both directions.

My feelings so far is the n360 is reliable up to 2000 watts, and over and above it remains to be tested.

By the way the nuvince was handling wonderfully before this failure for over 100 miles climbing SF hills etc. At most it would get luke warm so i dont imagine i was losing much efficiency.

I am lacing up a rohloff this week to give that a try under heavy load.

[iperov]

By the way the nuvince was handling wonderfully before this failure for over 100 miles climbing SF hills etc. At most it would get luke warm so i dont imagine i was losing much efficiency.

yes, its about 60% eff.
Better 80% eff generator, and 80% motor = better than nuvinci.

[sandymac]

Also make sure you never shift this under serious load! Anything more than about 200W and it won't shift...

Absolutely correct - even with a 200w motor!

I was told I needed to add a chain tensioner because I had rear suspension and this would fix the problem. This is not correct.

The rear suspension without a chain tensioner is actually a problem, but in a totally different way. As the seat drops down under the rider's weight, the chain gets tight and therefore limits the rear suspension from moving its full range of travel.

Nuvinci seem oblivious to this and push the 360 for e-bikes.

[dustyearlobe]

I have been running the hub with 2x 1200w cyclones ,no problems yet ,but what i can say is if it starts leaking fluid its probly the seal on the disc side ,its only a rubber o ring seal but be warned if you lose your fluid you might as well throw it away as it seems you cannot buy this from nuvinci and it is a vital working component and not any normal oil as it has fine metal particals in it ,
these particals when compressed turn solid and create vital links between bearings and drive in the hub (dont know any tecnical terms)somone else might chip in on this

[amberwolf]

There is a thread over on one of the motored bikes forums discussing the hub and the fluid and sources for it. It's linked in the Nuvinci dev kit for cheap thread, I think.

I don't remember if anyone actually ever bought any, though.

[Rollodo]

If possible, please continuously post your updates to this thread, as I for one am (though there may be other members who are also) thinking of configuring their setup to accommodate hubs like Nuvinci. As for how often, maybe once per month (or every 100 - 500 miles) or so.

--Thanks, Will.