FD extender for non-round big blade (Rotor, Osymmetric etc)

[Red_Zebra]

I have a direct mount front derailleur on my TT bike and at the moment I have a non-round ring running 52 teeth. This BARELY fits at the point of maximum adjusted diameter... (relatively 54/55 teeth).

 

Problem:

I want a bigger front chainring... and it will be non-round.

It's a personal preference based on my knees, hips, crank lengths, experience, marketing hype and placebo effect... So no opinions on this - thanks.

 

None of the non-rounds fit - and I believe I need an adjuster like the images. This spacer moves the FD backwards, and thus I can get a bigger blade on.

 

I can find some online in the UK but for GBP30... plus shipping, postal inefficiencies etc...

I have contacted Rotor directly for the part - no reply yet, but I fear this part may be near R1,000.

 

 

Any alternative or 'Ghetto' solutions?

 

 

[no calves]

Rotor you dont need it. O symmteric supplies this with the set of rings. I still have mne laying around somewhere

[Red_Zebra]

Rotor you dont need it. O symmteric supplies this with the set of rings. I still have mne laying around somewhere

I don't suppose you're Gauteng based?

[no calves]

I don't suppose you're Gauteng based?

Worcester