Which tool for Campy 8 speed lock ring / cassette remover?

[willpom]

Hi

Can any body point me in the right direction for the tool to remove a Campy 8 speed (Chorus) lock ring? I recently bought a Cyclo remover that says Campy lock rings and Record & Chorus sealed BBs. Fits a treat on my newer sealed Chorus BB but it looks way to small on the cassette lock ring to the point I don't want to try it as it looks like it barely engages and don't want to end up getting it wedged in there.

Thanks

Will

[Valbrona]

I've not used the Cyclo one, but a Campag cassette lockring remover ... is a Campag cassette lockring remover. They have only ever been to one design, whether 8, 9, 10 or 11 speed. These are the same things that fit the cups of the sealed Campag square taper bottom brackets, like you say.

[Mick F]

a Campag cassette lockring remover ... is a Campag cassette lockring remover. They have only ever been to one design, whether 8, 9, 10 or 11 speed.

That's my understanding too.

I use one of these:
http://www.parktool.com/product/freewhe ... bt-5-fr-11

[Brucey]

Hi

Can any body point me in the right direction for the tool to remove a Campy 8 speed (Chorus) lock ring? I recently bought a Cyclo remover that says Campy lock rings and Record & Chorus sealed BBs. Fits a treat on my newer sealed Chorus BB but it looks way to small on the cassette lock ring to the point I don't want to try it as it looks like it barely engages and don't want to end up getting it wedged in there.

Thanks

Will

your observation is quite accurate; IIRC the tool which fits BB cups has smaller teeth than the one that fits lockrings perfectly. You can use the BB tool in a scrape, but I have seen the BB cup tool fail on a very tight lockring because of this, and it is the reason there are really two tool designs, not one. I'd suggest that if you are in doubt, get the proper lockring tool.

cheers

[Valbrona]

and it is the reason there are really two tool designs, not one. I'd suggest that if you are in doubt, get the proper lockring tool.

As I am sure you know, Camapg have only ever done the one tool to fit both lockrings and BB 'cups', but two types are available from other sources, Cyclus 3/8" drive tools, for example.

[willpom]

To prove a point see attached photos. The first 2 are the same tool, Cyclo's version of Park Tool's. Campy must be asking for trouble if they themselves only did the one tool. Interestingly I tried Cyclo's Shimano HG remover, this is a much better fit but slightly loose rotationally so I could use, will look for this Cyclus one any way. Thanks all.

Will

1.Cyclo Campy tool + Campy 8 cassette - too small

2.Cyclo Campy tool + Campy BB - a perfect fit

3.Cyclo Shimano HG tool + Campy 8 cassette - a better fit

[Mick F]

Campag's tool is one single tool for BB and cassette.
UT-BB080
Get the proper one. You only need one.

I had the Campag one and broke it.
However the Park tool one I linked above is perfect for both BB and lockring.

[Brucey]

it is pretty much the same difference as between a shimano freewheel remover and a shimano lockring tool.

Some people say they use the same tool on both. Well, good luck on that one then, when you meet a tight lockring.

I use a shimano-fit lockring tool on campag lockrings and it fits better than the 'offical' Campag tool does....

cheers

[Mick F]

You tell Mr Campag that he's got it wrong ............ or shall I?

[Brucey]

i think Mr Campagnolo probably knows already....

-either that or their standards of precision engineering have lasped in a most lamentable fashion...

A campag 8 speed lockring has splines with a major diameter of ~23.9mm; 'their tool' is 1mm smaller than that, and has at best half the engagement...

cheers

[Mick F]

AFAIK, 8sp lockrings are identical in spline size to 9sp 10sp and 11sp.

Can you confirm this?

My digital callipers seem not be working changed the battery, and still u/s. Maybe become damp in the shed, so I'll dry it out and try again.

However, my broken Campag tool will actually work and I fitted it to spare lockring and compared the "fit" to my Park tool. I can confirm that the Park tool is a slightly loose fit in the lockring, but the Campag one is a tight fit - mainly because the splines have a taper on them.

Fitting the genuine Campag one into the lockring, it is a VERY tight fit with no play whatsoever - and so it should be!

Knowing this, and comparing the slightly loose Park tool, I am going to buy a new Campag tool.

This is my broken one:

[Brucey]

it doesn't matter what the fit on the diameter is per se; it is the engagement on the splines that is important, and the Campag tool has a good deal less than that of many other lockring tools.

I think all cassette lockrings are basically similar, but I only have a few 8 speed campag ones (plus various shimano and SRAM ones) to hand to measure right now.

I've never seen a silver coloured Park tool of this sort BTW; all the ones I have seen are black oxide finished. The Park FR5 for example has a slightly loose fit, but a good spline engagement. Available for £3-£8.

cheers

[Mick F]

Campag tool on the left, Park tool on the right.

My digi callipers are working now, thank goodness.
Measured the major diameters of the lockring and the tools. Lockring is 23mm, and tools are both 22.7mm.

The Park tool is a loose fit no matter how hard you push it home.
(I cross-drilled it - you can see the hole - so I could use a tommy bar)

The Campag tool is a VERY tight fit in the lockring, but ONLY if you push it all the way home. That is what I didn't appreciate when I bought it, and as it's very hard steel, it broke.

The difference between the tools' slots you can see quite clearly. The Campag tool has tapered slots, tapered both in diameter and width, so when it's pushed home, it grips perfectly. The only problem with it, is that it needs to be held in tightly to get the best out of it. The Park tool's teeth are parallel - and too short IMHO.

I've just ordered a new Campag tool from Ribble, along with other bits and bobs to make up the order to get the discount.

[Brucey]

Is that an FR5 Park tool? If so, it should be 23.4mm to fit in a 23.8mm major diameter.

The spline 'width' (circumferentially) is irrelevant to the torque capacity, unless you think the splines are going to shear off. I don't think there is any real danger of this, since the matching splines on the lockring are if anything more likely to be weaker.

The campag splines are only tapered because of the cutting process used to make the tool; it has absolutely nothing to do with the function of the tool. The lockring does not have tapered splines. If you drive it in until the tool stops on the tapered section of the spline (which you can't do anyway on many hubs- you wreck the RH seals) you might then be then driving the tool on an angled mating face of some kind; not good.

Campag make some nice kit, but this remover isn't it (not for lockrings, anyway); it doesn't fit the part correctly, they break, and they are about three times the cost of more durable, better-fitting alternatives.

[edit; BTW Park say to use their tool with a skewer up the middle, always. You can't do this with a tommy bar.]

cheers

[Mick F]

I think you and I are disagreeing here, Brucey.
It may be that you don't catch what I'm saying.

The Park tool is a BBT-5 and works well in both the lockring and the BB. I have had no problem with it and would recommend it.

The Campag tool is a UT-BB080. Expensive, but mine is coming for £12.17 from Ribble. The Park one is £6ish I think, but Ribble don't do one to make a real price comparison. Wiggle/CTC Shop don't do them either.

The Park Campag specific one is this:
http://www.parktool.com/product/freewhe ... bt-5-fr-11

Quite different from the Shimano specific one:
http://www.parktool.com/product/cassett ... -tool-fr-5

The Original Campag tool fits just the same as the Park one and seems to me to be the same diameter both minor and major, but because the Original Campag one has tapers, it fits very snugly with zero backlash. You don't have to drift it in, and I doubt you could. The tapers are short and sweet and work well - so well, it makes the Park tool feel cheap and nasty in comparison.

As I have both tools offered up to a lockring, I can make a studied statement on the way they both work. The Original Campag one fits perfectly - providing you make sure it's pushed home securely.

Hopefully, I've been clear about this.