Old timer
Über Member
- Location
- Norfolk, UK
I`ve managed to get hold of a new crank set with a 52T large chainwheel. this particular bike doesn`t have a front changer and I don`t want or need one.
I dismantled the rings, put the small ring aside and reasembled the large ring onto the spider. Now I realised that the securing male and female screws are to long and come to abutment before the chainwheel is tight. No problem, I ordered a set of single chain ring fixings. They arived today and they work ok and pull the ring tight onto the spider. What I have realised now is that the female round nut only fills the chainring( doesn`t protrude into the spider) and the alen bolt male side is a smaller diameter(obviously) So! it all tightens up a treat but I`m a bit worried that because the male section isn`t a tight fit in the spider there could after a while be some sideways movement allowing the ring to move about.
You might well say that they all fit that way and no problems but I`m tempted to grind the original double chainring females slightly shorter so that they don`t come to abutment but do pass through the ring and the spider holding them firmly in position
what do you reckon?
Thanks
Dave
I dismantled the rings, put the small ring aside and reasembled the large ring onto the spider. Now I realised that the securing male and female screws are to long and come to abutment before the chainwheel is tight. No problem, I ordered a set of single chain ring fixings. They arived today and they work ok and pull the ring tight onto the spider. What I have realised now is that the female round nut only fills the chainring( doesn`t protrude into the spider) and the alen bolt male side is a smaller diameter(obviously) So! it all tightens up a treat but I`m a bit worried that because the male section isn`t a tight fit in the spider there could after a while be some sideways movement allowing the ring to move about.
You might well say that they all fit that way and no problems but I`m tempted to grind the original double chainring females slightly shorter so that they don`t come to abutment but do pass through the ring and the spider holding them firmly in position
what do you reckon?
Thanks
Dave