Missing Balls! M730 XT headset bearing help needed!

[one-eyed_jim]

If you've got the headset in front of you, there's no reason not to measure the balls you have. If you haven't got a Vernier caliper (and every cyclist should have one) place four balls together in a suitable groove and measure with a good steel rule.

BikePro is usually pretty trustworthy: their "5.5mm" balls equate to 7/32" . That's a fairly unusual size, but not unheard of. 5/32" balls are 4mm, near as damn it.

 

[legrandefromage]

I have a 1 1/4 XT headset for spares if you get stuck.

 

[REKIBorter]

I do have the instructions scanned and ready to go up (not sure I scanned it though) can pop them up later.

That was me! 1/4" balls for an XT M730 headset

 

[FluffyChicken]

one-eyed_jim
that's the size
7/32" 22off is the ball bearing size for M737. ( HP-M737 )

for search reference
1/4" is for HP-M736
1/4" is for HP-M735
16off for both ?

Document will go up shortly.

HP-M900 / HP-M901 / HP-M902 use 3/16" (20, 22, 24 off respectively)

 

[FluffyChicken]

and now up along with some other diagrams I also had (m90x and M74x headsets)

I also believe that M730 headset was only 1" and there where no corresponding 1-1/8" and 1-1/4" headsets

http://www.retrobike.co.uk/gallery2/v/M ... 1.pdf.html

 

[FluffyChicken]

I do have the instructions scanned and ready to go up (not sure I scanned it though) can pop them up later.

That was me! 1/4" balls for an XT M730 headset

it was and now I've mastered how to add links to say who did it, its altered to add you.

Useful already

 

[Johnboy]

I think 5.5mm equates to 7/32". If that's right and you want some I have some NOS ones, flash git that I am I'm going silicon nitride ball bearings in my forthcoming build.

Pm me with your address and how many you need if interested.

 

[benbonty]

You guys are awesome! I lost track of this thread somehow, but have now been reunited and the correct bearings are now on their way!! Thanks all.

 

[Skinwhistle]

Forgot about this thread too!!
Glad you got it sorted

Carl