Raleigh Mercury chainring problem
Hi
Raleigh Mercury, early 1990’s, pink and white 12 speed.
Bought this the other day second hand. Lovely bike, just need to change bar tape and fine tune gears.
I’ve just noticed a problem with the front chainrings though. When it spins it has some sideways movement, in other words it firstly catches the front derailleur when it spins and I’ve noticed that the small chainwheel has eaten into the paintwork on the chainstay tube. It is not loose as BB is fine and tight, it’s just that somehow it’s been ?bent with obvious sideways movement into and out of the bike frame.
How do I get the right size replacement to ensure it fits onto the BB without major changes needed??
Thanks
Daffy
Raleigh Mercury, early 1990’s, pink and white 12 speed.
Bought this the other day second hand. Lovely bike, just need to change bar tape and fine tune gears.
I’ve just noticed a problem with the front chainrings though. When it spins it has some sideways movement, in other words it firstly catches the front derailleur when it spins and I’ve noticed that the small chainwheel has eaten into the paintwork on the chainstay tube. It is not loose as BB is fine and tight, it’s just that somehow it’s been ?bent with obvious sideways movement into and out of the bike frame.
How do I get the right size replacement to ensure it fits onto the BB without major changes needed??
Thanks
Daffy
0
Posts
Personally I couldn't be bothered with this, and would just choose the chainset I liked best and buy the appropriate BB to go with it. You'll save yourself a lot of hassle.
I've stripped the BB today and it's the old school Cup and Cone BB.
http://www.google.co.uk/imgres?imgur...26tbs%3Disch:1
The axle is so thick I doubt it's that that's bent. I've re-greased the lot and put it back and looks/appears to be fine. I'll look at the chainrings, if I cannot bend them back how do I know what to buy to replace it so that it fits the same?? What I mean is that if its a different width compared to the first one I could have the same problems or it could be wider and then the derailleur may not work properly.
thanks
Ian