Fitting a star fangled nut
robinlaidlaw – Member
I always just pop a bolt in them then tap them in with a hammer but there is always a bit of tapping it sideways to straighten it as you go required.
This is how I do it, I did manage to smash one to pieces however but that is probably one out of twenty.Posted 3 years ago
I can do most maintenance on a bike but the fitting of a star fangled nut is one thing that fills me with dread. I just cant seem to line them up and they go all wonky.
Last time I did it I used a trick off of here, but I cant remember what that was!
Using a threaded bar and pulling down sounds great, but I dont have a long enough bar.
Any other tips using standard items you can find in a garage to fit an SFN?
ThanksPosted 3 years agonedrapierSubscriber
As a wise man said recently:
I tend to be a “make do, judgement, skill and a keen eye” sort of person, but for some reason I bought a SFN installer (pricey forks, £10 on top seemed inconsequential, I guess). Cheaper than a Hed doctor, too.
It’s brilliant. None of this careful tapping, lining up nonsense. It’s as easy as “spin, thunk, whack, spin” and takes about as long to do as does to say it. You don’t have to spend as much time making sure the steerer is cut square either.Posted 3 years agonedrapierSubscriber
and if you look at the url of this thread, there’s another few threads of answers you can find pretty easily. Yours:
andPosted 3 years agoNorthwindSubscriber
Threaded bar is good stuff to have, no end of uses. Get some M6, M8 and M10, and washers and nuts to match, they cost buttons and you’ll be using them to attach things to things or pull things into things or straighten things or spread things for the rest of your days.
In this case, don’t bother using it like a headset press- just thread the SFN onto the M6 bar and drop it in, the length of the bar makes it impossible to get it significantly squint. Then tap the top with a medium hammer.Posted 3 years agoRo5eyMember
Cut off the rounded end of a wooden yard bloom handle… you’ll find it fits nicely into the steerer tube.
So just tap that star fangled baby down to your desired depth
Probably not even possible to damage the nut and as chip as chips
Until the wife finds out you’ve vandalized her bloom 👿 😀Posted 3 years agowobbliscottMember
Not easy to do yourself, but with the help of a mate, a longer bolt and a 5lb lump hammer the task is completed quick smart. A few taps to the side to adjust alignment (doesn’t gave to be spot on) completes it. If it was a job I’d be doing more than once every 5 yrs I might consider investing in the proper toolPosted 3 years agoDeveron53Member
I made my own. I use a large socket that just fits over the end of the steer tube. I have a long bolt with a piece of tubing with an outside diameter just the right size to fit through the square drive hole of the socket.Posted 3 years ago
I thread the star nut onto the end of the bolt-with-shim, stick it inside the socket, put the socket on the end of the steerer tube and thwack with a mallet. I have marked the outside of the tube with the correct depth so I know when I’m about to get the second star into the top of the tube.
I know I can buy these things cheap but I got great satisfaction from making my own from parts out of the scrap bin!craigxxlMember
Attached the SFN to the drive side of a 19mm socket using a washer on the open side and the screw the SFN comes with. Tap into the steerer, the flange part of the socket will go to the ideal depth in the steerer. The SFN will seat squarely if you’ve cut the steerer correctly. Fitted dozen this way without fail.Posted 3 years ago
Hold the steerer in a vice to prevent the hammer impacts going into the fork legs.
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