Campag UT Compact chainrings

[Will1985]

I'm annoyed - I got a 36t chainring today for my Campag UT CT chainset to find that in fact it doesn't fit. I now realise that these chainsets utilise an offset 110 bcd, so the new FSA inner chainring is redundant.

I'm putting it in the classifieds section.

 

[Mortiroloboy]

Should've purchased a Campag part. or checked the BCD first Not a lot of help I know, and I don't need/want your FSA chainring either!

 

[Will1985]

The BCD is basically correct Mortirolo Boy....just one hole is offset which I have never heard of before.

Looks like TA are the way to go...just more expensive

 

[Vapin' Joe]

I had that problem the other way round, being supplied with an Ultra Torque 36t inner for my square taper. The LBS soon got me a replacement, however. I used a TA ring, you need the Nerius for UT and Zephyr for square taper.

 

[Mortiroloboy]

The BCD is basically correct Mortirolo Boy....just one hole is offset which I have never heard of before.

Looks like TA are the way to go...just more expensive

Hmm, bad manufacturing? Hope you get it resolved soon.

 

[Rob S]

Isn't it just the rings for the compact carbon cranks that are off set rather than the alloy UT and square taper compacts?

 

[Will1985]

It appears not - the entire range of compact UT cranks where the 5th arm is behind the crank have this feature.

Not sure what happens with the normal 135bcd chainrings...

 

[zimzum42]

36T ring? How slow are you????

 

[Will1985]

34t is a bit pointless for the flatlands of Norfolk, plus you get gear duplication, whereas you don't with 36t.

With 12-23 on the back, it is virtually the same as a 39/53 with 12-25...just a little less at the top end, but more useable.

 

[Nick1979]

UT? TA? CT?
Can somebody help me improve my Campy culture here ??

 

[Will1985]

UT = Ultra Torque
CT = Compact
TA = French component manufacturer (Spécialités T.A)

 

[Nick1979]

Thanks!
I know Ultra Torque is a brand name from Campy but what does it refer too exactly?

 

[Will1985]

It is a different way of joining the cranks - instead of using a spindle bottom bracket (a 3rd component), each crank has half of the spindle built into it.

Read http://mywheelsandmore.com/bicycleParts/campagnolo/Ultra-TorqueCampagnolo Crankset.htm for a better explanation!