waingroo

Not the antirotation was the problem. I has arrived at the same conclusion.. filing 2mm will be enough without many headaches.

waingroo

https://sheldonbrown.com/fixed-conversion.html

waingroo

thanks for the clue, but I prefer filing a bit to solve the problem. Anyway, with the hub rotated 90 degree, is just perfect. Perhaps the IGH shaft is not straight.

Dan Burkhart 

More likely that the chain ring is not perfectly round.

fietsbob

as mounted, they rarely are..

waingroo

This is a "good" news for me, as the shaft is more expensive and take some hours to change, instead there is not a huge problem with the chain ring because once I will change it with a nexus 44T.

xenologer

so... as the chain ages and 'stretches' how will you readjust the tension?

waingroo

right now the chain is almost new, and maximum tensioned possible... when will become used it will just relax a bit and then i'll ghange it. I do not force my bike, i use it more for city and short roads and trips. I don't agree the darailleur ideea instead gear hub (gear box), the same I don't agree chain idea instead shaft drive and also I don't agree non 4WD cars. Think about having derailleur and chain to your car.... not so great. For me, derailleurs and chains on bikes, have the same place with wooden wheels on old carts. I don't like non reliable (life time) objects.

xenologer

if you are so serious about internal gear hubs, and long term reliability ; why not choose a bike frame designed to work with them instead of all the unreliable kludges/ shoehorning?

waingroo

some things cannot be changed at all, I'm so serious about what I said. I don,t need a bike to work with, but also I don't like to have a bike with primitive speed changer derailleur IMO.It is not an offense, just my real opinion... perhaps I can be wrong, but this is what i believe.

dabac

And you don't think it's offensive to say that other people's preferences are primitive?

Maybe you should ask for some pointers on how to be tactful. You seem to need it even more than you need mechanical assistance.
Being "honest" is not an excuse for rudeness.

If you prefer IGHs, fine, that's your call. But there's no need to talk down on others preferences because of that.

fietsbob

Some bike frame rear dropout designs work well with a single speed /IGH conversion

Vertical dropouts are not one of them , start over , now that you know you want an IGH Drivetrain .

get something else , all the suggestions have been made , It's the Shopping season ,

In December, the Baby Jesus wants you to spend Money

waingroo

dear Dabac, i like telling the truth. If you consider an offence then just sorry. there are 3 options: to lie, to tell the truth (opinion), or to not talk about the problem. I choose the truth, but with one condition, never personal attack. Ok? so, I said what I thought



But, first of all, the word primitive doesn't mean an offence like for example "ugly". There are expensive old primitive cars that i love them. The word primitive, IMO is something like is out of fashion, or not performig... in not a case ugly. My bike is so primitive without a drive shaft and with a chain instead... not difference between my bike and the world war two ones. But you Dabac, have just make a personal attack (offence).

Dabac, in this phrase: IMO, manual gear box is more primitive than A/T and normal disks clutch AT is more primitive than DSG AT** you find an offence? considering that my car have a normal gear box and also considering (IMO) wich mean that it can or can't be wrong?

waingroo

I adapted my bike and work perfectly. Vertical dropouts + tensioner can easily be adapted.... the problem is the coaster brake + tensioner.... but even for this there can be found solutions. Anyway, I have a bit of luck, because in my case it just fit without a problem without need of a chain tensioner. Also i've seen that my bike have from factory made IGH and the same dropouts. The best solutions are strong (2 attachments point) chain tensioner, excentric bottom head or enlarge the holes with a few mm + half link. In my case like how i said it works perfect.

Wilfred Laurier

i dont think it is

i cant imagine how you have so much emotional investment
in derailleurs
that you consider a criticism of them
a personal attack

ironically
i believe planetary hub gear transmissions
predate derailleurs

fietsbob

It was an English vs French thing. (again)

dabac

You're reading way too much into this.

Try this thought out:
- if you were to ask 100 people whether they associated "primitive" with something good or desirable, or something bad or undesirable, how do you think the vote would fall?

So, sure, maybe you can find a place where "primitive" is a neutral classification. But in general usage and general population, it's not.

I don't see upkeep of external gears as a problem, and I don't see the (possible) drivetrain losses or the weight penalty of an IGH as a problem either.
Only things keeping me from IGHs are range/ratios and cost. And possibly the current lack of a suitable frame to stick one in.

Besides, I find it hard see how "primitive" would fit as a description either way.
Maybe back in the early days where the whole wheel was scooted back & forth to allow enough slack to move the chain from one sprocket to another. Or the not-so-parallel linkages in early generation rear derailers.
But today? "Excessively complicated" would be more apt for the escapement mechanisms in the shifters and all the itty-bitty machining on parallelograms and cages.
"Ridiculously exposed" - I'd buy that too. But "primitive"?

waingroo

Dabac, just sorry man. Let's forget the story... i'll give you many argumetnt that show in some cases external gears are more advantageous. Try to search for nuvinci hub (a kind of CVT) wich make my nexus hub to look like prehistoric . External gears are for performance, but not so reliable like hubs and because i'm an amateur i prefer reliable. Also it was a kind of luck to find 3 hubs at less than 100$... just in case something happen with the one is mounted on my bike. Anyway i don't have too much patience and i like to disassembly them to learn better the system .

Wilfred Laurier

i am not debating derailleur vs igh drivetrains
both have strengths and weaknesses


nor am i arguing that calling derailleurs primitive
is positive or negative
or anything inbetween

my comment was that you
for some reason
take criticism of derailleurs as a personal attack

what if i were to say
steel frame bikes are too heavy and give a crappy ride

this is a negative opinion
which many people will disagree with
but it is not a personal attack
on anyone
no matter how many peugeots or serottas or surlys they own