Steerer Plug Bolt - Replacement
Moderator: robbosmans
I’m trying to replace the cheap steerer tube plug bolt that comes with my Pinarello F10 for one made out of stainless steel or titanium.
I am doing this mostly to prevent corrosion not for weight savings.
Do any of you know a good source to find such screws?
I am not even sure what type screw this would be (such as M5, M6, etc.)
Thanks!
I am doing this mostly to prevent corrosion not for weight savings.
Do any of you know a good source to find such screws?
I am not even sure what type screw this would be (such as M5, M6, etc.)
Thanks!
which country?
to find the size, just take out the old bolt and measure it
https://www.pro-bolt.com/ are good, there are many others
to find the size, just take out the old bolt and measure it
https://www.pro-bolt.com/ are good, there are many others
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In a happy coincidence, the gold anodized alloy cantilever bolt from a set of Magura hydraulic brakes happened to fit into my Neco steer tube expander.
USA... But this web site is cool! What's the best way to measure a bolt to find it's size? Well, to find if it is a M6, M5 or whatever...sungod wrote: ↑Mon Aug 27, 2018 6:15 pmwhich country?
to find the size, just take out the old bolt and measure it
https://www.pro-bolt.com/ are good, there are many others
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The M means metric and the number is the bolt thread diameter in millimeters, their are various pitches of thread but most bike bolts are a standard coarse thread bolt.
A vernier is the best tool to measure the bolt but eyeballing it with a ruler should be easy enough to determine its size. the expander bolt you are looking to replace usually M6.
A vernier is the best tool to measure the bolt but eyeballing it with a ruler should be easy enough to determine its size. the expander bolt you are looking to replace usually M6.
I think those bolts need around 5-6nm or torque, so I might buy very high quality alu alloy (careful the average alu bolt will thread like butter over 4nm). Or preferably 'good' titanium alloy. Varies by manufacturer, but you probably want M5x30-40mm. A full metal jacket steel bolt is around 8g-10g. So you can potentially shave off 5g or so, which considering it's a single bolt is a heck of a lot! I just switched by stock steel bolt to titanium on my bike today and saved about 4g.
Thanks for the info!Lewn777 wrote:I think those bolts need around 5-6nm or torque, so I might buy very high quality alu alloy (careful the average alu bolt will thread like butter over 4nm). Or preferably 'good' titanium alloy. Varies by manufacturer, but you probably want M5x30-40mm. A full metal jacket steel bolt is around 8g-10g. So you can potentially shave off 5g or so, which considering it's a single bolt is a heck of a lot! I just switched by stock steel bolt to titanium on my bike today and saved about 4g.
Where Did you purchase your bolt?
Found a bolt in my 'non-magnetic' bolt pile!avispa wrote: ↑Thu Aug 30, 2018 1:07 pmThanks for the info!Lewn777 wrote:I think those bolts need around 5-6nm or torque, so I might buy very high quality alu alloy (careful the average alu bolt will thread like butter over 4nm). Or preferably 'good' titanium alloy. Varies by manufacturer, but you probably want M5x30-40mm. A full metal jacket steel bolt is around 8g-10g. So you can potentially shave off 5g or so, which considering it's a single bolt is a heck of a lot! I just switched by stock steel bolt to titanium on my bike today and saved about 4g.
Where Did you purchase your bolt?
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