Anyone know about 7 speed freehub body compatibilities with a new LX 10 speed hub? . I'm trying to get a 130mm hub down to 126mm.

I'm pretty sure if the hub is spaced 126 with a 7 speed freehub cassette body, it generally won't take 8/9/10 speed cassettes. Do you remember the 7400 hubs when they went to 8 speed? They were threaded on the outside to still accept 7 speed stuff, and they had rounded axle nuts because these hubs were 130 but the rounded nut made them easier to wedge inside a 126 frame. Someone out there must have more depth on this.

Are you working with an existing rear hub, or trying to find any 126 hub that will fit 8/9/10 speed cassettes?

Oh, wait -- sorry, I see what you're trying to do: put an old, shorter cassette freehub body onto a newer LX hub and reduce the OLD to 126. As far as I know, that'll be pretty difficult. The LX hub has a press-in 3 pawl cassette body, and the narrower cassette bodies from back in the day had a different way of attaching to the hub shells, with an internal ratchet. How many cogs to you want to run? Looks like it will be a creative effort.

Thanks for the info. I was looking at a machine built wheel set, but as Most of my bikes are at 126mm, I want to keep that spacing.

The 10 mm sleeve bolt take both apart?
is the hub face connection the same?
you say not..



I love the 126 wide freewheel hub I built my Touring bike wheel around .. made by Phil Wood... wheel build circa 1985..





I thought the 7 speed K cassette was a perfect cog size collection 13 - 34t

#6 a 30t .. rather than the Megarange which forces a 10t jump 24 to 34t.

Asked in the Brick & mortar shop?

Steel frame ? Spread it..

Removed the 4mm spacer from the left axle end? re tension spokes?




..




...

You can find stock Shimano hubs that are 126mm with a 7spd freehub, granted they are vintage at this point. I have at least one Shimano 600 hub that is exactly that, only limitation is a 12t small cog I think. You would have to find one, and build a wheel though.

I've scrounged up a NOS 32h cassette hub and a NOS 36h freewheel hub, both at 126 mm. I'm solidly in the clyde camp so I'm still looking for a 36h cassette hub. The plan to have 2 decent wheelsets, one 700c and one 650b. I was going to have the the 650b set made with the 32h cassette hub but chickened out.
I keep seeing machine built wheels that cost less than what the components sell for retail, which is why I'm trying to bodge a "modern" 126 mm 7 speed. The Phil free wheel hubs are actually pretty cheap all things considered, but Spring is still a ways off, so I'm going to keep scheming and scrounging.

That is True , Wholesale distributors to bike shops, have the wheel assembly machines and combine parts from their warehouses ,

which allow them to ship a built wheel for less than buying the wheel components at retail..

IN my Local those are the sources of the repair wheels..

But you unfortunately need a time machine too..

I've swapped Shimano 7 speed freehubs with 8/9/10 speed freehubs (both ways). Note, 11 speed freehubs are different and not compatible.

There are a couple of styles of freehubs. Make sure everything has that little ring of notches near the middle.

DO BUY: (STX-RC 7 OR Acera-X-7)
https://www.bikebling.com/Shimano-ST...pd-freehub.htm



DO NOT BUY: FH-RM30 7-Speed


When you get the new freehub mounted, and the spacers worked out, then inevitably you will need to re-dish your wheel. Not a big deal if you have a spoke wrench and truing stand (and maybe dishing tool). Or, you could have a shop do it for you.

Well.. I googled this up:

Shimano LX FH-T660 10-speed Freehub body


PART NUM 983729


no notches though.

The "Shimano XT FH-M756 LX FH-M570 Deore FH-M555 Freehub Body" does however.

That should be a pretty direct swap with that first freehub body I posted.

That's a $180 should to confirm....