after mkI version failed on Saturday, part of Sunday pm was spent making mk II version.
Drill three holes in the steerer and tap to M3. Drill and tap a section of aluminium alloy to M6 and shape to fit inside the steerer, then trim to lose wieght (final wieght 5 g). Use 3 3 x 3 mm grub screw to keep in place ensuring they do not protrude beyond the steerer. Job done.
DIY lightweight star fangled nut
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I like it!
What's the difference between mk1 and mk2?
What's the difference between mk1 and mk2?
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02GF74 wrote:except after a couple of rides it didn't.
Surely once the headset is preloaded and the stem done up the SFN (or whatever) takes no load, so shouldn't fail - In fact a friend advocates using a home made bolt through like a head doctor and then takes it off after the stem is done up....I prefer the idea of having mid ride maintenance possible!
Impoverished weight weenie wanna-be!
Budget 26" HT build viewtopic.php?f=10&t=110956
Budget 26" HT build viewtopic.php?f=10&t=110956
good point - the stem holds the assembly together, still have no expllanation as to had loosened (most likely not done up correctly in first place)
usually I use a steel bolt to preload the h/s, then fit alloy bolt, in that instance I did not do that.
usually I use a steel bolt to preload the h/s, then fit alloy bolt, in that instance I did not do that.
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