Building a race bike

julian said:
That's another 266g heavier 😲😲
Do you know how many holes I would have to drill to lose that again :LOL:🤣🤣

jules
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There's a well known Kiwi special (car) here that is positively Italian in the sheer number of holes in the chassis and attatchments.

In the 1950's we had a lot of power cuts. The holes were drilled by hand - under lantern light. Dedication.
 
I reckon there would be more efficient ways of reducing weight in a large area than just drilling holes. That SFC (replica?) belt cover looks a mess with all those random holes. Looks like it's been the victim of a shotgun attack. Better to cut bits out of strategic places where stress is minimal and leave something looking more like a cage or web pattern. If all you need is something to stop your foot getting in the belt (or chain?), a wire mesh cage would do the trick.
 
As Tippie pointed out why make a lightweight alloy sidecover look like shite but leave a steel sprocket on the rear wheel - and who knows what other heavy unsprung stuff? Wonder if they drilled the axles?
 
piranha-bro2 said:
As Tippie pointed out why make a lightweight alloy sidecover look like shite but leave a steel sprocket on the rear wheel - and who knows what other heavy unsprung stuff? Wonder if they drilled the axles?
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Drilling the bottom of the fuel tank would lighten the load substantially :ROFLMAO: :ROFLMAO: :ROFLMAO: :ROFLMAO: :ROFLMAO: :ROFLMAO: :ROFLMAO:
 
Thomas aus LAU said:
I drive a normal high-quality DID chain WITHOUT O / X rings on the Eagle.

I also drive it far and, unfortunately, often longer distances in the rain.
With modern lubricants like HKS I don't see any difference to the O-ring chains on the other Laverdas. During a holiday of 2,500 - 3,000 km with a lot of mountains = higher loads and bad weather, you don't have to retighten the chain.
I lubricate 1-2 times on the way.

This is a gigantic difference compared to the older days, when you cooked the chains in a pot with Castrol chain fat on the camping gas stove.

Thomas aus LAU
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Or heating up the pot of duckhams chain wax on your mothers hot plates, it all goes well until it tips over, my dear dad had to dig me out of that one when I was younger!!!!
 
I find well drilled "drillium" rather pleasing to look at, as long as it is neat and well positioned.
For sure there are better ways to design in lightness, but on a period classic bike, things need to look period and classic, Drillium is for sure classic and period as no one bothers nowadays due to CNC etc. But I personally dislike parts on classic bikes that look like they have just been picked out of a CNC machine. However cutting back or removing parts is the first step in my book.
J

PS.
I will have some drillium parts on my bike, Drillium is the lightest material known to man remember! maybe not the strongest but drill anything makes it lighter than before :D:D
 
Drillium can look very nice indeed when done right.
 

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