This might be a stupid question ......

[d8mok]

I’ve got a pair of 517 citrus rims on a set of XT M750 , and feel I want to match the hubs to the rest of my groupset which is XTR.

Having never built a set of wheels I ask as a novice. If I buy some XTR m950 hubs will they just swap over. Obviously I’ll make sure they both same spoke count but will spokes be the same length ?

 

[Bimly]

You need to know the dimensions of the 2 hubs. If they are the same in theory yes. However, there is so much bad data, I would only ever rely on a measurement I took myself.

New spokes are not that expensive anyway.

 

[one-eyed_jim]

You should be fine. Check the spoke lengths here:

https://leonard.io/edd/

but the difference in hub dimensions is too small to worry about. Sort the spokes into four groups (leading and trailing, left and right) and use the same orientations. I usually use new nipples.

It's more hassle to change hubs than to build new wheels though. Might you be better off looking for some NOS rims?

 

[mattr]

Be careful dismantling as well. It's more like building in reverse than just unscrewing everything.

New nipples is v.good advise too. Unless the wheel isn't that old. (It probably is.)

 

[mattr]

Oh, get a copy of the wheel builders bible

https://www.wheelpro.co.uk/wheelbuilding/book.php

Only 9 quid and well worth it.

 

[d8mok]

Re:

Thanks for advice everyone.

Might just sell the wheels and buy new ....

 

[mattr]

TBH, it's not actually difficult to do. Just need to be organised and ordered. Not just go at it like a bull in a china shop.

I reckon it's one of the big differences between someone who just replaces parts on a bike and an actual bike mechanic.