Chain Life

Johnny

Active Member
#64
So it seems KMC E chains are working for some (3500+ miles)and failing around 1000-1500miles for the others.

Has anybody tried standard versions(Not ebike specific ones) of these chains? I really am curious how a chain like kmc X10.93 (or shimano equivalent) holds against something like X10E on a mid drive. I suspect that the first one may just snap.

In my case I thought the sudden wear on the chain (happened in a matter of 20-30 miles) was related to me switching to RnR(The first time I used it , it did a good job of cleaning the chain but I was't sure if it lubed enough since the chain felt dry after a couple of rides and most of that lube is a cleaning/carrying agent). KMC chains may be very prone to running dry maybe?
 

Jaxx

Active Member
#65
For my road bikes, which are all Dura Ace fitted components, I dump the chain in favour of KMC chain's. This was on the advice of my mechanic, who has worked on the UCI Pro Tour.
 

Taff

New Member
#66
Has anyone studied wear and tear on drive and rear sprockets when changing chains. You never ever change a motorcycle chain without sprockets so some of this must transfer over to an e MTB. New chain on worn sprockets is just asking for trouble.
 

PDoz

Well-Known Member
#67
Has anyone studied wear and tear on drive and rear sprockets when changing chains. You never ever change a motorcycle chain without sprockets so some of this must transfer over to an e MTB. New chain on worn sprockets is just asking for trouble.
I understand the theory - premature stretching of the chain as it was pulled up the worn tooth . I guess our bike sprockets already have freaky shaped teeth to assist with shifting , plus most of the abuse they get is being bent and stretched as we shift under load?


Ps When running decent motorbike rear sprockets ( like chaingang - I miss them...) I would get 2chains to a rear sprocket but still replace the smaller front each time - the second chain would last about 75% as long . It's hard to be precise on this, because I'd always replace the whole set before any dessert trip over 10,000 km, and the " second set" would then have to cope with local conditions ( mud, rocky hills, more agressive riding)
 
#68
Hi!

Two Haibike sduro fullnine 2019 8.0 and 4.0, original chains kmc e10.
On the 8.0, chain wear 0.75% in about 900 Km (ridden by me, mostly eco, std on steep slopes, always used the big cogs)
On the 4.0, chain wear 0.75% in about 500 Km (ridden by my girlfriend, used a lot of assistance, possibly wrong gearing sometimes on steep slopes).

Both chains have been taken care of, degreased and lubed after each ride.


When I bought the replacement chain for me there was also another one with rust protection (EcoProTeq).
I opted for the simple one because:
a) it was cheaper
b) my original chain looks brand new, no way in hell it developed rust in 900 Km, I see no reason to pay extra to protect from something which won't happen because it wears out quicker that it rusts