lukathonic

Hey,

I'm upgrading an old road bike to a triple crank so I can pull my daughter in her trailer up steep hills that would otherwise kill me.

The question is ... if I order a triple crankset, do I need to take any special precautions to make sure it fits my bottom bracket? Are there different sizes, or do bb come with standard connections to the crankset? I may have to get a new bottom bracket, since the bike is from the 80s (BRC) and I don't know if the BB will be compatible.

Thanks for the help.

silversmith

Do you have a freewheel or cassette?

I've been doing some touring along the Mississippi River bluffs and had thought about a triple for my old Le Tour. I had a 14-28 freewheel and 53-39 crankset and it just wasn't cutting it with a full load up the hills.

I popped in a rear wheel with an 8 speed cassette with a 32 tooth cog and that really helped. Then I saw that Harris Cycles had a Shimano MegaRange frewheel in 13-34.

Wow! That thing just winches me over the hills that had been beating me up.

I was worried it wouldn't shift well, but the old Suntour touring derailleur 6-speed MegaRange combo shifts great.

28 bucks, counting shipping.

operator

BB's are cheap. A campy mirage crank with corresponding bb is < $100 from PBK shipped. In fact they were having a special on the campy bb's. They were only $10. That guarantees compatibility pretty much, as long as you get the right bb size and threading.