I have a Campag equipped Mariposa with an 8 speed Mirage hub/cassette & a 50/39/28 triple. It originally had a 26 inner ring. But I found it difficult to keep the chain on that ring if it changed at all. In view of the fact that Campag's smallest inner ring is a 30 one must presume they knew of the problem. But I would like to get my bottom gear back to where it was by replacing my 26 sprocket with a 28, but don't know where to get one. I can also replace my 22 sprocket with the 23 that was on there originally.
The original sprockets were; 14,15,16,17,19,21,23,26. But I found the 21 & 23 could just as easily be a 22 & that gave me space for the 18. That allows a 73" gear without crossing over to top cog x 39 ring.
Can anyone lead me to a 28 cog for a 1998 Mirage 8 speed cassette?
Harold Bridge, [edit by Joe]Removed ph number for privacy reasons[/edit] (Port Coquitlam, BC, Canada)