Hi guys,

Can anyone let me know how to replace speed sensor on my '09 Fatboy, thanks.

The sensor is located on the top of the gear box, just behind the Dip Stick.

VEHICLE SPEED SENSOR: VSS 8.29

GENERAL

The vehicle speed sensor is powered and monitored by the
ECM. The ECM processes the vehicle speed signal and
transmits this signal to the TSM/TSSM/HFSM and speedometer
through serial data.
The vehicle speed sensor is located on the transmission just
behind the transmission top cover.
REMOVAL
1. Remove seat.
1WARNING
To prevent accidental vehicle start-up, which could
cause death or serious injury, disconnect negative (-)
battery cable before proceeding. (00048a)
2. Disconnect negative battery cable.
3. See Figure 8-79. Disconnect 3-place vehicle speed sensor
connector [65].
4. See Figure 8-79. Remove sensor mounting bolt and lift
sensor from transmission case.
INSTALLATION
1. See Figure 8-79. Install sensor into transmission case
using mounting bolt. Tighten bolt to 84-108 in-lbs (9.5-
12.2 Nm).
2. See Figure 8-79. Mate 3-place vehicle speed sensor
connector [65].
3. Connect negative battery cable.
1WARNING
After installing seat, pull upward on front of seat to be
sure it is in locked position. While riding, a loose seat can
shift causing loss of control, which could result in death
or serious injury. (00070a)

Thanks AJ56, have had a quick look but could not find it, is it under the oil tank?? How accessable is it??

Yep.   Under the tank

Thanks mate, still finding my way round the newer models - had no problem working on evo's!!