Originally Posted by
alcjphil
I wonder about that stem. I had a TTT stem on my Raleigh Professional that required a 7 mm hex key. The OP states that the 6 mm key they have is a loose fit. Is it possible that this stem also needs a 7 mm hex key?
I tried 7mm and 1/4” which were too big. I tried a 7/32” which was too small. A 6mm allen wrench fits, but there is quite a bit of play. The draw bolt aperture was slightly buggered when I bought the bike from the original owner.
I did purchase a set of these bits which are made to facilitate removal of recalcitrant hex bolts. Fits nicely. I will give it a try with a manual impact wrench once I get a 3/8 to 1/4 adaptor.
