The Bulls were in control of the game for the first hour of play, leading 20-6 by that stage.
Wakefield score two tries to hint at a possible comeback, but tries from Michael Worrincy and Sykes ensured Bradford would claim the points.
The Bulls opened the scoring after just seven minutes when Ben Jeffries broke the line for Sykes to score at the corner.
The Wildcats did get on the scoresheet, Jason Demetriou squeezing over from a tap penalty, but two Bradford tries followed before the half-time interval.
Sykes scored a second before a superbly well-worked move was finished off by Steve Menzies, Deacon’s goal making the half-time score 20-6 to the Bulls.
Defence was on top for after the interval, Wakefield only able to breach the Bulls line once, that effort the third to be ruled out by the video referee.
There was no comeback however, Worrincy going over the re-establish the Bulls’ convincing advantage, and Sykes finishing off another well-worked Bradford move, Deacon converting both efforts.