Announcement

Collapse
No announcement yet.

My chain doesn't fit my chainring, even though it should according to the specs!

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • calfee20
    replied
    Originally posted by joebreeze View Post

    Huh ?! So don't chime in , LOL , and then rag on his chosen equipment which is not what he is asking help for ?
    Hmm this thread is 7 months old and you jump in here like a bull in a china store. Did we get up on the wrong side of the bed or are we being a little trollish today.

    Leave a comment:


  • joebreeze
    replied
    Originally posted by 73Eldo View Post
    I'm no way any kind of expert on these bikes and I hardly know anything about chains .
    Huh ?! So don't chime in , LOL , and then rag on his chosen equipment which is not what he is asking help for ?

    Leave a comment:


  • joebreeze
    commented on 's reply
    Do you ever actually read the OP Nick Nolte mugshot guy , before instantly knocking someone down. He told you what chain he is using , why the question , its a KMC e101 EPT , wtf. I thought he provided pretty good info. He doesnt need to tell you hes using BBSXX because the BlingRing only fits BBSXX
    Last edited by joebreeze; 09-28-2021, 11:01 AM.

  • Retrorockit
    commented on 's reply
    It looks like they're producing E bikes for people who don't really need them. Adding 250W to a rider who can make 1400W already? So what?
    Adding 1500W to a 67 year old geezer like me. Now that makes much more sense.

  • Dshue
    commented on 's reply
    It's not just the 250w and 85nm of torque from the motor, the bike manufacturers using these motors intend then to be ridden just as hard as an acoustic bike. So it's in addition to the human power.
    At some point I expect EMBN to get some bikes on the "rolling road" that their friend Ray Cook built.
    https://youtu.be/5-oncUIcsUI
    And a former GCN presenter, Chris Opie has a set of power meter cranks on his e mtb. I've been hoping that he'll give some power numbers. I've seen him put down over 1400w on a road bike.
    Last edited by Dshue; 03-08-2021, 10:21 AM.

  • 73Eldo
    replied
    Interesting note about 'Bosch and other ebike systems'. Its not like those systems are running that much power so you wonder why they apparently went with a less common chain standard? Sell more 'genuine' parts and service? By other I assume they are talking about Shimano and Yamaha.

    Leave a comment:


  • calfee20
    replied
    Originally posted by knurt View Post
    Hi!

    I am sorry for the photo taken with the wide-narrow gap on the chain, not correctly aligned with the wide-narrow teeths. I have now aligned it correctly, but the problem persists. I'll attach a new photo when the chain is aligned correctly.
    Here is a quote from KMC site on that chain. "1/2" x1/8" | Compatibility: BOSCH and other eBike systems" It doesn't say anything about narrow wide sprockets. Do what Azguy says just get a cheap chain or use your stock one. I had a SS chain that wouldn't fit on my Luna eclipse and it is still sitting in my parts box. Live and learn.

    I have an Alfine 8 spd, and several other geared hubs. They are all strong enough IF you don't shift under power. If you shift while climbing a hill they will all break!

    Leave a comment:


  • AZguy
    replied
    +1 on I wouldn't file the expensive chainring... just get a cheap (compared to the ring) chain that fits

    Leave a comment:


  • Retrorockit
    replied
    I wonder if you have some sort of Campagnolo metric chain of some kind. Their stuff often doesn't match Shimano based stuff.

    Leave a comment:


  • 73Eldo
    replied
    I would not even consider filing the chain ring. I'm not metal expert but I know they must have had to do some sort of treatment to the aluminum to make it not wear too fast and there is a good chance that that treatment is only on the surface so if you remove it you could end up wearing the teeth much much faster.

    When I first got into this I too was worried about the chain and looking at all the E bike chains but while doing all the research I put 1600km on the bike and chain that was used when I got it with no issues. When I got the bike (a 10 speed) the chain was worn enough that I was not able to identify it for sure. I'm pretty sure it was a mid level Shimano HG. I ended up ordering what I thought was a replacement which generally sells for about $40. I found a vendor selling unboxed but sealed in a bag versions of it for $19. That is now what I am running on both bikes and I just ordered a spare. Not a lot of miles on either one yet but so far so good.

    I'm no longer running my IGH. That bike started out as a 10 speed and I converted back to 10 speeds because I wanted a wider range than the 3 speed could offer. My last ride on the 3 speed I did think I was hearing some odd noises but already had most of the parts on hand for the 10 speed so I didn't bother to investigate the noise. This is also why I only have 10 speed chains now. I don't know what chain came with my IGH since I bought it used. It does have a lot of side to side flex so that makes me think its a 7/8 speed but maybe the flex is due to wear? The reason I think 7/8 is I did break the master link and going through my junk box a KMC 7/8 speed quick link seemed to be an exact match. I did test fit a new Sram 8 speed chain I bought for another project just to make sure it fit the sprockets and it did so that was going to be my spare if I had kept the IGH.

    I was at my local shop yesterday and they have a mid drive bike with the Enviolo hub and they told be to come back next week when the rest of the snow melts and take it for a test ride. I'm for sure going to take em up on that and keep an eye on other reviews of them and see if they come up with any new maybe stronger models since they do seem to be working with mid drive people.

    Leave a comment:


  • AZguy
    replied
    I run relatively inexpensive chains ($30) and get 3000mi on a BBSHD - I think it's easy to overthink the chain... I run the bike hard with a mix of multi-use trails and off-road... I just stay on top of keeping the chain lubed...

    Leave a comment:


  • knurt
    replied
    I now tried to push the chain with finger pressure, link by link, into the gap between the teeths, then the chain gets stuck between the teeths, all the way around the chainring. I think the problem is that both the chain and the chainring is brand new and that I will be able to use this chain as replacement chain, after the first chain needs replacement. Either that or I'll need to file the gap between teeths, which I don't want to do. So my solution to the problem will be to use a cheap chain that I know fits, and when that chain needs replacement, I imagine that this expensive chain will fit just perfectly, due to the wear and tear from the cheap chain, on the teeths.

    Leave a comment:


  • knurt
    commented on 's reply
    The Shimano Nexus 8 IGH came with the bike when I bought it, so I tought I'll use till it breaks. I have a SA-3 speed IGH to replace it with if necessary. I am 145 kg. It would be nice ti find a singlespeed e-bike chain that fits. Shimano e-bike chains are not singlespeed (as far as I can tell by looking at their website). KMC has the Z1eHX Wide EPT-chain which is a singlespeed ebike chain, but I don't want to buy that one only to find out that it didn't fit either.
    If I can't find a singlespeed ebike chain, I'll go with a regular chain. Hoping for recommendations and suggestion from people on this forum

  • 73Eldo
    replied
    I'm no way any kind of expert on these bikes and I hardly know anything about chains especially the models listed here but what I would do is go with the original one and see what happens. My thinking is as long as you have a nice straight chain line the stresses that are likely to snap a chain suddenly are pretty minimal. You may need some sort of straight edge along the rear tire to really see what the chain line is because the angles of the frame could be throwing off your prospective.

    Other thoughts is that I don't hear good things about the Nexus 8 being a very strong unit. Only IGH's that have a reputation for being able to take abuse is the Rolhoff and Newvinci / Enviolo hubs. The Enviolo isn't necessarily that tough but since its not gears its failure mode is more slipping than a catastrophic bang like geared hubs tend to do if they fail. Rolhoff I hear does make some very strong units but they also cost more than most of us pay for complete bikes.

    I'm not saying that your Nexus 8 is a terrible choice and will fail but I am thinking that as long as you have a straight chain line that if you are putting a lot of stress on things that the hub will likely be the weak link rather than the chain. I weigh around 115 kg so on flat ground I am stressing my bike. If I am going fast or climbing a hill I am putting a lot of stress on the bike.

    One thing to remember is the BBS likes to spin fast. If you are running medium or high levels of pedal assist try and select a gear where you are spinning on the fast side of your comfort zone especially if you are going fast or climbing. If you are going throttle only try and select a gear at the top end of how fast you could pedal or maybe even a little faster. That makes the motor work less hard so less stress on everything.

    I'm pretty sure the people that have issues wearing and breaking these quickly are constantly going fast throttle only or just lugging them in too high of a gear either because they are just in the wrong gear or are climbing too much hill. More than short sections of mud, snow, and sand I could see being really hard on them too if you keep pushing. If you are just out for a nice ride and think about what gear you are in and how hard the motor is working I think you will be fine.

    Leave a comment:


  • knurt
    replied

    the old chain(which is brand new, since I never used it) that came with the bike when I bought it fits perfectly. It is the KMC Z51-chain. It feels a lot weaker than the KMC e101 EPT-chain. Also according to Lekkie the chainring fits I have the following parts:

    Middrive: bbshd
    Front chainring: Lekkie Bling Ring HD, 42t
    Rear sprocket: 23t
    IGH: Shimano Nexus 8

    I am also obese so that will probably also add up to the wear and tear of the chain.

    Which chain would you use in this configuration?
    Last edited by knurt; 03-06-2021, 12:13 AM.

    Leave a comment:

Working...
X