It is understood that the defender has cost the League Two side £30,000.
Bantams boss Phil Parkinson told BBC Radio Leeds: "I've been concerned about our lack of experience at the back with the big games we have coming up.
"Michael knows the job, he's a leader and he'll be a good addition for us."
The 32-year-old has also had spells at Scunthorpe United, Norwich City and Hartlepool United.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Doncaster RoversDoncaster | 6 | 4 | 0 | 2 | 10 | 8 | 2 | 12 |
| 2 | Notts County | 5 | 3 | 2 | 0 | 10 | 4 | 6 | 11 |
| 3 | BarrowBarrow | 5 | 3 | 1 | 1 | 7 | 2 | 5 | 10 |
| 4 | Gillingham | 5 | 3 | 1 | 1 | 6 | 2 | 4 | 10 |
| 5 | Bradford CityBradford | 5 | 3 | 1 | 1 | 8 | 5 | 3 | 10 |
| 6 | Walsall | 5 | 3 | 0 | 2 | 7 | 3 | 4 | 9 |
| 7 | AFC Wimbledon | 4 | 3 | 0 | 1 | 6 | 4 | 2 | 9 |
| 8 | Newport CountyNewport | 5 | 3 | 0 | 2 | 10 | 9 | 1 | 9 |
| 9 | Chesterfield | 5 | 2 | 2 | 1 | 9 | 4 | 5 | 8 |
| 10 | Tranmere RoversTranmere | 4 | 2 | 2 | 0 | 3 | 1 | 2 | 8 |
| 11 | Bromley | 5 | 2 | 1 | 2 | 7 | 6 | 1 | 7 |
| 12 | Port Vale | 5 | 2 | 1 | 2 | 8 | 8 | 0 | 7 |
| 13 | Harrogate TownHarrogate | 6 | 2 | 1 | 3 | 6 | 7 | -1 | 7 |
| 14 | Crewe AlexandraCrewe | 5 | 2 | 1 | 2 | 3 | 7 | -4 | 7 |
| 15 | MK Dons | 5 | 2 | 0 | 3 | 5 | 5 | 0 | 6 |
| 16 | Cheltenham TownCheltenham | 5 | 2 | 0 | 3 | 7 | 8 | -1 | 6 |
| 17 | Grimsby Town | 5 | 2 | 0 | 3 | 7 | 10 | -3 | 6 |
| 18 | Fleetwood TownFleetwood | 4 | 1 | 2 | 1 | 3 | 3 | 0 | 5 |
| 19 | Colchester UnitedColchester | 5 | 1 | 2 | 2 | 6 | 7 | -1 | 5 |
| 20 | Salford City | 4 | 1 | 2 | 1 | 2 | 3 | -1 | 5 |
| 21 | Swindon TownSwindon | 5 | 0 | 3 | 2 | 3 | 8 | -5 | 3 |
| 22 | Carlisle UnitedCarlisle | 5 | 1 | 0 | 4 | 4 | 11 | -7 | 3 |
| 23 | Accrington StanleyAccrington | 5 | 0 | 2 | 3 | 6 | 13 | -7 | 2 |
| 24 | Morecambe | 5 | 0 | 0 | 5 | 0 | 5 | -5 | 0 |
| > League Two Full Table | |||||||||
