Jimmy Mack

Done and dusted.

The straight steerer, on the left, has a flat race that had an open ballbearing. The replacement fork on the right has a chamfered race.

I am replacing the fork on my 2015 Scott Scale 950. The original fork, a Fox Evolution Series, has a straight steerer. The replacement fork, also a Fox Revolution Series has a tapered steerer. I purchased a headset kit from my local bike shop but found that the bearings do not fit into the end cups. The bike mechanic informed me that the end cups are unnecessary. When I asked how the bearings would seat without the end cups he seemed confused. Can anyone tell me if the conversion from straight steerer to taper steerer is possible on this model Scott Scale and if so, how it's done?