zippy895,
Measure your old steering tube that came off your S-Works bike. If you don't have the fork, then measure the HT length + headset stack height + spacer(s) to determine the correct length you need to get.
Measure your old steering tube that came off your S-Works bike. If you don't have the fork, then measure the HT length + headset stack height + spacer(s) to determine the correct length you need to get.