just built up my jake the snake ready for commuting, but im not happy with the gears.
cant seem to get the right clearance from the mech, and also the shifters arent working as id like. heres the pic
if you look close enough youll see the campag crank, is only just missing the front mech towards the rear. yet the chain is still catching on the mech at the front. obviously i cant twist the mech or move it out for the chain to clear, as then itll hit the crank :-/
its a campag mirage chainset, campag veloce mech, and campag bb.
also, whether its related or not, when im on front ring, it takes about 3 clicks to get it onto small ring, and then i have to do 1 click back to stop chain catching on mech again.
also, whether its related or not, when im on front ring, it takes about 3 clicks to get it onto small ring, and then i have to do 1 click back to stop chain catching on mech again.
^that doesn’t sound right at all – what shifter are you using?
khani, that was my first thought, but if you think about it, whatever size the bb is, its pushing everything out or in at the same time. its not going to affect the front/rear clearance of the mech :-/
the mech as a bit of a bulge built into its shape, and the crank seems to be struggling to clear that.
mech is rotated so its in best position for both chain and crank. any more to clear the crank, and the chain rattles against it 🙁
dont know about same year, but youd expect campag to be compatible with campag? :-/
shifters are sora. indexed right? how can i alter the indexing?
also, whether its related or not, when im on front ring, it takes about 3 clicks to get it onto small ring, and then i have to do 1 click back to stop chain catching on mech again.
^that doesn’t sound right at all – what shifter are you using?
Sounds like a triple front shifter and a double chainsett
I’m probably wrong though
think the shifter actually has more than 3 clicks. was thinking that was deliberate so you can adjust it slightly if chain is catching. am i wrong there?
didnt actually know you got ‘double-specific’ shifters :-/
dont know about same year, but youd expect campag to be compatible with campag? :-/
shifters are sora. indexed right? how can i alter the indexing?
thanks
didnt actually know you got ‘double-specific’ shifters :-/
My road bike has double front shifters for the double chainsett (ultegra)
They are different than the triple on the wifes bike
what sort of mech should i look out for do you think? the cable comes up from under the bb shell. is that ‘bottom pull’? and top swing? bottom swing? i get confused with bottom bracket terminlogy 🙂
Oh I got this problem as well! Campag veloce throughout but still catches.
Does it seem that the gap between the crank arm and the large ring is too small? therefore the derailluer does not fit as it is either touching crank or touching chain?
You manage to fix or work it out? I went for ensuring that the chain catches only when in top gear and 2nd to top gear. All the rest are now smooth but it is a compromise as I cannot work out how or why it wouldn’t work.
I seem to recall a similar problem when I set up a bike a few years ago, the front mech cage would catch the inside of the crank arm when the chain was on the outer ring – seem to recall it was all my mistake, and I’d simply been too hasty to set things up. Stripped eveything down, and went at it again slowly & steadily, especially when it came to adjusting the front mech stops.