Removing freehub body

[Willd]

Got my new 10mm hex-key so thought this would be a doddle It fits the new one fine, but not the one stuck on the bike, which seems to be more like 11-12mm and only has splines around part of the hole.

I'm guessing I need a different tool. The new freehub looks identical apart from this.

 

[Ajax Bay]

Some are 11mm. What sort of freehub/hub?

 

[chriswoody]

It could even be as big as 15mm, if you have a 12 mm thru-axle hub.

I'm fairly certain that's what my Hyperglide freehub is on the Mountain bike.

 

[Willd]

The hub is one of Felt's own. Freehub is a 9 speed Shimano one as far as I can tell, the old one doesn't have any marks on it.

 

[Willd]

Axle fits through the new one OK, so I reckon I may need an 11mm allen key - off to Halfords after lunch

 

[Ajax Bay]

Take the wheel with you.

 

[Yellow Saddle]

Axle fits through the new one OK, so I reckon I may need an 11mm allen key - off to Halfords after lunch

A long hex socket is the best tool for this job.

 

[T4tomo]

Axle fits through the new one OK, so I reckon I may need an 11mm allen key - off to Halfords after lunch

you can "add" allen keys together, i.e put together a 6mm & 5mm will operate an 11 allen bolt etc.

 

[Big John]

The fact that the hex key fits one but not the other suggests they're different freehubs. You mention a 'new' one but haven't removed the old one yet. I always get the old one off first before sourcing a new one. There are a multitude of different freehubs. Some undo from the back, some from the front and others can simply pull off. They can all accept a Shimano cassette but are fundamentally different.

 

[fossyant]

I'm with Big John !