cup 172 track vrs mrk1 track

[ben_p]

how much in mm is the difference, i wana space to cup track, i know they use a diff et offset, but whats the diff in mm ?

 

[len_beach]

et38 vs et45 I believe so 7mm a side.

 

[haitch]

cup is ET38.5, mk1 RS is ET43.

 

[ben_p]

so 4.5 mm a side eh?

 

[Christopher]

haitch is right.

thanks speedline.