My Roberts has 120 mm OLD and I'm not keen on cold setting this frame. I have hills up to 20% and use 3x6 wide range gearing. The freewheel is 13-15-17-20-25-34 Suntour Ultra 6-speed, with the possibility of a 38 if needed. The chainset is Stronglight (Spidel) 106 Tri (55-43-30 (min 28)). Shifting by Simplex (Spidel) Retrofriction. 9-speed chain.