Originally Posted by jumperjim

I started a thread in the Bicycle Mechanics forum but I did not finish. My question was about raising the stem shaft above the max. height line stamped on the stem. I wanted to know if I could safely raise the handlebar stem shaft above the max. height line stamped on the shaft. And, if so how high can I raise it? I’m 6’2” and even at the max. height line my back gets sore, especially riding on bumpy roads. Someone told me that even under normal riding the stem would disconnect from the fork. Can anyone tell me why? What would happen if I raised the stem shaft and tightened down the stem binder bolt to a higher torque?

For info I ride a Trek mountain bike.

Please help.