Pace Rc200 Bottom bracket length with RS1 Middleburns

[jez-4-bikes-max]

Re:

No sweat guys - have ordered a few different lengths.

I suspect (typically enough) that there are quite a few variables in play: version of Pace frame, deviations in cranks, compact or standard rings etc

 

[My_Teenage_Self]

curiosity got the better of me;

Trek OCLV 9800 frame (73mm BB, not that should make any difference?)

RS1s fitted (RS2s were the same)

royce 130mm BB.

Chainline; centre of seat-tube to centre middle ring 49-50mm.

Sheldon Brown Sez chainline should be 47.5-50mm, so you could maybe drop to a 128mm BB I guess.


Hope that helps!!

 

[FluffyChicken]

Re:

A later pace model the F6
RS2 would be 122.5
RS3 would be 107
Which mirrors what they would normally spec be for 47.5mm chain line with these.
(Also gives shimano standard as per their spec as well as cooks e and Mavic at 130mm)

3+4mm crank arm minimum from stay and 1mm minimum from ring from stay.
(Recommend these are a bit further away for brand new cranks/bb as they'll settle and gradually move in over time, as they do.)