chuckybb

I picked-up a 1985 Trek 760 with Campagnolo Victory cranks. I'm toying with the idea of removing the cranks to check-out the bottom bracket. It has the Campy self extracting crank system, so it looks like I would need a left hand threaded" 22mm crank extractor. I have not figured out what the thread pitch is and I'm wondering if anyone knows what it is. Any info will be appreciated.

Kontact

Why not just use the crank extractor that is built in?

Search "c-record crank extractor" on ebay. About $50.

Andrew R Stewart 

My Sutherland's Manual says it's 22x1mpt LH. I thought I still had mine but it likely got sold off when my shop closed. If you can't find one or make one let me know and I'll see if Full Moon might have one from Pedaler's old tools we ended up with. Andy

chuckybb

I will check that on ebay, thanks Kontact. The reasons I'm hesitant about using the self-extractor thing are the horror stories about messing up the cranks with that system. I have stripped some beautiful old cranks and don't want a repeat.

chuckybb

Thanks Andrew R Stewart! Will do.

Kontact

I recall them working pretty well. If you are concerned, I would get some penetrating oil in there, snug the ring (lefty-tighty) with a pin spanner and apply smooth force with a good fitting 7mm allen.

I've also used the regular kind with normal thread and have never had a problem. The fact that these tighten as you remove the bolt should only decrease the risk. It really isn't that different than using a dedicated extractor, IMO.

SurferRosa

Pics??

A sweet bike like this should be fully overhauled. And if you have the correct dust caps in there, just use them to extract the arms as was intended.

ShannonM

The only thing I'd worry about with a Victory / Triomphe crankset is chainrings... weird BCD that nobody but Campy ever made rings for. 116 mm, minimum ring was a 36T, I think. Too bad, really, I always thought they were neat.

--Shannon

Kontact

There's a fair number of compatible chainrings on ebay for cheap.

SurferRosa

Miche made them for a short time. And they used to be on eBay, but I don't see them now.

This summer, I bought a beautiful Triomphe crankset on eBay with a very rare 40t ring (and 52t) for less than $60 shipped, so deals are out there.

Dave Mayer

Look for a Miche Young crankset online. Made for junior-sized racers in shorter arm lengths. They came with 36/46 rings in a 116 BCD.

The smallest ring with this BCD is 35; I know, I'm looking at a stack of them. Don't ask.

When removing a Victory or early C-Record crankarm DO NOT (ever) remove the self-extracting bolt with the 2 pin holes. BTW: it is left-hand threaded. To remove the crankarm, use a good 7mm hex bit socket on a 3/8" ratchet.

SurferRosa

"Don't ask"?? You just threw that out there to tempt us??

Kontact

So don't remove the self extractor, or remove it some other way?

gearbasher

Yes, can you please elaborate. Campy made a tool for removing them and it was the first thing I did after buying the extractor with left-handed threads.

Kontact

That does look like a better alternative to an adjustable pin spanner.

veganbikes

Yes but keep in mind that BCD (116) was used really mostly for youth bikes beyond the short lived Triomphe and Victory stuff , so people have had issues with bending chainrings. There are a few vintage Campagnolo chainrings out there but a lot of what you might see is vintage youth chainrings. I did the research years ago as I got the crank for basically nothing on a bike I bought for the 600 Tri Color (yes it was a weird bike).

Kontact

I don't think all the 52, 53 and 42t Campy chainrings I saw by doing a simple ebay search were for youths.

SurferRosa

Is that your tool? Very cool.

gearbasher

Yeah. It's a very simple tool. There's a hole in it that a #3 Phillips' shaft fits into very nicely.

Dave Mayer

In normal use is no reason for removing the self-extracting bolts. The very purpose of these bolts was so that you could use a 7mm hex bit to both install and remove the crankarms. Just one single 7mm hex bit does everything. No separate extractor required.

The only reason why someone would remove the extractor bolts is for one of the following:

1. Some ham-fisted mechanic used a 6mm hex key and mangled the 7mm interface. I've seen a lot of this. Yes, 7mm is a size; it does exist.
2. An Ebay doofus removed the extractors from a Victory or C-Record crankarm in a pathetic attempt to get a higher price for the crankarms and extractors separately. Of course, when an unsuspecting user attempts to remove the crankarms using a standard right-handed extractor, and cross-threads and then strips the alu threads, they'll be P.O.'d.

But again, these bolts should stay fitted to the crankarms for their life.