Pantani wrote:I reckon you have a problem with the cassette. Have a look at the positioning of the elastomers and check if they appear to be protruding more towards the teeth on the sprockets that are giving you trouble.
I'm researching this issue myself.
@ Peztech. Watch this space.
yes, have checked them, but if you look at http://hem.bredband.net/baltazar/fel2.mov" onclick="window.open(this.href);return false; the problem is that the chains links rides on theeth on the sprocket, radar then on the elstomers. really strange