How to remove a cassette that's seized into the hub splines?

[Herzog]

As title really, the Ultegra cassette on my 50mm Planet X tubulars has 'eaten' into the splines of the freehub (novatec hub if I remember correctly). Rather surprised as these are my race wheels and have around 800-1000km only on them. So, I've 3 questions:
1- How do I remove the cassette (it's stuck pretty firmly)?
2- How do I stop this happening in the future?

 

[Roadrider48]

3?

 

[Herzog]

3?

Hard day at work...

 

[Herzog]

Done it; bit of brute force and used a chain whip. Looks like a new freehub for me. Am I right in thinking SRAM cassettes are less prone to causing splines to disintegrate?

 

[mickle]

I'd complain.

 

[robgul]

Assuming you have the retaining ring off - is the first cog (smallest) separate and can you get that off?

If so then there's probably enough of the hub/splined bit sticking out to be able to grip it (with some soft wood in the jaws) in a big engineering vice) ... and then use the chain whip, pulling against the direction of rotation.

If my first sentence doesn't apply then possibly a gear puller of some sort might be possible to grab, say, the 3rd cog in and pull it off.

Rob

 

[Herzog]

I'd complain.

I'll certainly let Planet X know that the freehub didn't last very long, whether it'll make any difference or not, your guess is as good as mine.

 

[Herzog]

Assuming you have the retaining ring off - is the first cog (smallest) separate and can you get that off?

If so then there's probably enough of the hub/splined bit sticking out to be able to grip it (with some soft wood in the jaws) in a big engineering vice) ... and then use the chain whip, pulling against the direction of rotation.

If my first sentence doesn't apply then possibly a gear puller of some sort might be possible to grab, say, the 3rd cog in and pull it off.

Rob

Yep, got it using a chainwhip and a bit of force.

 

[RecordAceFromNew]

Am I right in thinking SRAM cassettes are less prone to causing splines to disintegrate?

With more sprockets on a spider, which is more common for the more expensive models of the major makes, might help, so is ensuring the sprocket retaining pins are tight. But the smallest sprockets are usually loose.

The best cure is to avoid alloy freehubs, which is how Novatec/Superstar and Hope e.g. cut mass (in the wrong place imho) to make their hubs light. In the case of Hope they do steel versions, in the case of Novatec they do an ABG version, which probably tells you how sh*t the standard versions are, and which might be worth exploring if you are keeping the hub.

 

[Herzog]

With more sprockets on a spider, which is more common for the more expensive models of the major makes, might help, so is ensuring the sprocket retaining pins are tight. But the smallest sprockets are usually loose.

The best cure is to avoid alloy freehubs, which is how Novatec/Superstar and Hope e.g. cut mass (in the wrong place imho) to make their hubs light. In the case of Hope they do steel versions, in the case of Novatec they do an ABG version, which probably tells you how sh*t the standard versions are, and which might be worth exploring if you are keeping the hub.

Cheers, I'll take a look.

 

[Hacienda71]

Aluminium freehubs are as said much more likely to get the cassette stuck on, particularly with lots of loose cogs which individually dig into the freebhub body. gently tap the individual cogs around to free them one by one.

 

[Herzog]

Aluminium freehubs are as said much more likely to get the cassette stuck on, particularly with lots of loose cogs which individually dig into the freebhub body. gently tap the individual cogs around to free them one by one.

22.50 refund - not bad and will cover the cost of a new feeehub. Resolved very quickly by Planet X.