Originally Posted by
paulriccio
Hello. I think you can help me. I have an old Mangusta 5000 (mongoose made it) and I am having the same problem the guy you gave advice it is. I am literally being passed by elderly women on hills.
I had a bike shop replace my freewheel from 25 to 28 and it helped. Not a lot but it did. I have a Shimano FC-1050 crank, and a Shimano rd-1050. The crank is 52/42. The only 6-speed I can find is Sunrace FC-R31 which is 53/39. To do a 50/34 do I need a new DR? If so, can you help me find the right kind? Or at least point me in the right direction? Many thanks.
That poster hasn't logged in in almost 10 years.
Sort of the price of bumping a dead thread.
Chances are, if you start a new thread- you'll get some excellent answers from people that have done this.
IMO- you don't need to use new, modern swoopy looking components on an old bike to get the desired gearing. Lots of old (and inexpensive, but very cool) MTB/ATB derailleurs will suit your needs better and suit your bike better.
Good luck!