Ultegra 6700 double chainset.

[jpb]

i have an ultegra 6700 double chainset with 170mm cranks but looking to swap for 175mm cranks either ultegra chainset or very similar.

 

[jpb]

its only done 43 miles!

 

[Russell Allen]

Is this a 50/34 or 53/39

Russell

 

[jpb]

53/39