Boardman Front Shifter

[marshmeanderer]

I have recently started riding a Team Pro version with great success. Please can anyone identify the model/type of front changer unit used in the 2008 model. Mine is stamped SunRace F90? (two front chain rings)
I wrongly thought that this was a Suntour or possibly a Shimano model but I'm unable to find any tech notes for either manufacturer online that refer to an F90 - I believe Suntour are now defunct anyway? Mistified!!

 

[youngoldbloke]

SunRace are SunRace. They are also now the owners/manufacturers of Sturmey Archer, I believe.