What is considered a minimum safe granny to chainstay clearance? My current setup has about 49mm chainline on the front, and about 5mm clearance between the granny and chainstay using a 115 UN-72 BB and TA Alize crank. I am considering going to a 113 BB to bring the chainline a little closer to Shimano spec, and to increase (maybe just by one) the number of low gears I can use in the middle ring without having to trim.
"KBH" <[email hidden]> wrote in message news:4%wpa.343782$Zo.75300@sccrnsc03...
Quoted message said:
What is considered a minimum safe granny to chainstay clearance? My
current
Quoted message said:
setup has about 49mm chainline on the front, and about 5mm clearance
between
Quoted message said:
the granny and chainstay using a 115 UN-72 BB and TA Alize crank. I am considering going to a 113 BB to bring the chainline a little closer to Shimano spec, and to increase (maybe just by one) the number of low gears
I
Quoted message said:
can use in the middle ring without having to trim.