stronglight crankset

hi i have been using a stronglight crankset http://www.planetx.co.uk/i/q/CSSTTR2K/stronglight-track-2000-crankset with the recommended 107 mm bb since i have changed it over from the original crankset i have broken 2 chains and get lots of chain slippage even when the chain is quite tight could it be the chainline is wrong ? or am i just unlucky as i think i am i have a normal 120mm rear wheel spacing any help would be most appreciated

Measure it.

ok i have just measured it i have a chainline diffrence of 1mm between front and back so now im really confused

1mm isn't much, I don't think you should bother too much about the chainline, but I don't know how to explain your issue with chains. It has been stated that Stronglight chainrings aren't perfectly round but not that it would be a reason for broken chain, maybe you are that strong that you should join national team?

lol or maybe it is because im a heavy f****r 110kg+

Just a thought: are you using 3/32" chains?

i have just ordered a kmc k910 chain and a ACS crossfire freewheel

Super toughness should help.

hi i have been using a stronglight crankset http://www.planetx.co.uk/i/q/CSSTTR2K/stronglight-track-2000-crankset with the recommended 107 mm bb since i have changed it over from the original crankset i have broken 2 chains and get lots of chain slippage even when the chain is quite tight could it be the chainline is wrong ? or am i just unlucky as i think i am i have a normal 120mm rear wheel spacing any help would be most appreciated

Never had a problem with my stronglight chainset, are you sure that the chain, chainring and sprocket are all in good condition? Also is your rear hub tightened enough?