2015 Trek SC 7
Aeolus 7 wheels
Full IM compliment
training ride for IMLou, was practicing "bombing" down hills to prepare for rolling hills (to carry as much momentum back up)
Happened twice going down long descents, hitting ~37-40 mph. when moving from aero to basebars to prepare for braking 1/3rd way down (this particular hill had a sharp curve at bottom.)
Took it to local Trek shop. they took apart the stem and found both stem bolts were a bit loose.
Mechanic checked everything else (said I probably should replace steering tube bearings, which were still the original ones, agreed with that)
Tested again and no more speed wobble.
Aeolus 7 wheels
Full IM compliment
training ride for IMLou, was practicing "bombing" down hills to prepare for rolling hills (to carry as much momentum back up)
Happened twice going down long descents, hitting ~37-40 mph. when moving from aero to basebars to prepare for braking 1/3rd way down (this particular hill had a sharp curve at bottom.)
Took it to local Trek shop. they took apart the stem and found both stem bolts were a bit loose.
Mechanic checked everything else (said I probably should replace steering tube bearings, which were still the original ones, agreed with that)
Tested again and no more speed wobble.