Collet for Felder router spindle shaft

[Max Power]

Does anyone know the size of collet required for a router shaft for a felder 741 of 2006 vintage
They are available from Felder for 40 plus pounds but can be had on fleabag for around £7 but
I need the size

 

[PAC1]

The collet is 1 inch diameter 25.4mm the indent for the holding ring gives a diameter of 22 mm
The bottom is 19mm
The length is 34mm
As far as I remember these came wth the spindle
Mine is a 2004 model

 

[Max Power]

Thanks Pac, much appreciated, hopefully I'll be able to get one without resorting to Felders exorbitant prices

 

[Max Power]

Result
Ordered Sunday delivered Tuesday £7.10 inc delivery saving over £30
For any one interested it's a standard ER 25 collet with the appropriate bore required