03-12-2014, 07:37 PM
(03-12-2014, 05:28 PM)cny-man Wrote:(03-12-2014, 04:06 PM)RetFor Wrote: ... it was riding great - until i replaced the chain with the new one i had bought and never put on. i was waiting til i got a new freewheel so that the old freewheel wouldnt damage the new chain, but after putting on the new chain it started slipping again. why might that be? is it possible the new chain is too long? i wouldnt think the small difference would do that, but the new chain IS a little longer than the old one by 3 or 4 links. i held them up to each other to see the stretch on the old one, which i did see, but i also noticed that the new one is a little longer. will that cause skipping? should i trim it down to the same number of links? the other possible cause i thought of is while the new chain seems to be coated with something, its still a bit stiffer than the old one. does that just need to be broken in? oiled? is the coating itself the cause, does that need to be washed off then the joints oiled? is there some other possible cause im missing?DO NOT remove the factory lube - it's as good or better than anything you would put on. Too long a chain would only cause problems in the smaller combos (small front chainwheel, smaller rear cogs.) You also do not size a chain by comparing it to the other one, which may not have been correct. Below are good guidelines on chain sizing.
thanks.
http://www.parktool.com/blog/repair-help/chain-length-sizing
http://sheldonbrown.com/derailer-adjustment.html#chain (chain length about 1/2 way down the page)
In order to diagnose we would need to know in what front/rear combos it skips, whether it takes hard pedal pressure to do so or is regular (like every crank rev or every few revs).
yeah, after posting i was looking around a bit and saw that what comes on it is better. so i guess tahts not the problem. the front can only be on the smaller cog as i havent put in the new front derailleur yet, maybe next week ill get to that. for the back, its on the bigger middle cog currently, and giving me light skipping there - when i put more pressure on the pedals. its not a regular skipping. i think the skipping was worse before i changed gears, possibly from a smaller, one, but i dont remember which it was on. ill try them out tomorrow to see whats what.