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Fabian Cancellara's (Radioshack-Nissan) le-tour Shimano Dura-Ace rear derailleur .. equipped with aftermarket pulleys and Nokon cables at a quick galance, so I guess he feels there's a need to 'tune' standard equipment?
When there's marginal gains to be made and when the difference between winning and losing is being measured in hundredths of a second, these things can make a difference, but on the commute or Sunday morning club run, they're not exactly critical.
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^ Some modern drillium
Drilled cogs. I think On-One's cheapies come with holes in 'em anyway.
They look crazy. I wonder, if they're aluminium or steel? I'm guessing aluminium... Do you think they're stiff?
When there's marginal gains to be made and when the difference between winning and losing is being measured in hundredths of a second, these things can make a difference, but on the commute or Sunday morning club run, they're not exactly critical.
With that mentality, why are you on here? hahahaha It's ALL about the hundredths of a second! (which could have been gained by not wearing socks, or going bald, but that's irrelevant)
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Well, if you can reduce the weight of the majority of the parts by 10% give or take on a 9 kilo bike you reduced it by almost a kilo, seems pretty decent to me.
majority of the parts, what parts are you planning on drilling? Sounds like you will be finding the various weak points of the parts the hard way. Make sure you put the money saved towards good cover for your injuries...
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Fabian Cancellara's (Radioshack-Nissan) le-tour Shimano Dura-Ace rear derailleur .. equipped with aftermarket pulleys and Nokon cables at a quick galance, so I guess he feels there's a need to 'tune' standard equipment?
Nokon is standard equipment. ;)
The oversize pulleys supposedly reduce drivetrain losses.
They are not drilling holes in parts, they are merely using different parts.
ie. I have Shimano drivetrain but I don't use PRO bars.
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They look crazy. I wonder, if they're aluminium or steel? I'm guessing aluminium... Do you think they're stiff?
With that mentality, why are you on here? hahahaha It's ALL about the hundredths of a second! (which could have been gained by not wearing socks, or going bald, but that's irrelevant)
Steel? On a pro bike? Ha!
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They are not drilling holes in parts, they are merely using different parts.
Yep I agree. But my (weak) point is .. that drillium was tuning of parts in yesterday to improve performance and today tuning is still practised, even if it takes forms other then drilling a hole. I know the direction to WW ;)
Oh btw the pulleys are std 11 teeth .. they've been upgraded I'm pretty sure to ceramic speed pulleys to reduce friction losses.
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majority of the parts, what parts are you planning on drilling? Sounds like you will be finding the various weak points of the parts the hard way. Make sure you put the money saved towards good cover for your injuries...
Ok I'm not thing of solely drilling, just reducing the mass of the parts in various ways, drilling being one of them, sanding being another...
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I always thought it is better to drill steel than aluminium, as aluminium is more brittle, and steel is stronger?
Or are those cranks cast like that?
"Recently we gave you a quick look at Carlos Sastre's (Cervélo Test Team) prototype Rotor cranks but information on them was decidedly scarce at the time. Though they appeared to be hollow-forged cranks with a smattering of holes drilled in them to save weight, it turns out that we were only partially correct. The crankarms are indeed hollow and forged and the holes do save weight, but the order of operations is not what you would expect and is what makes these special.
The arms actually start out as solid forgings, not hollow ones. Holes are then drilled clean through the arms from both the sides and outer faces but their diameters, directions and locations are carefully selected such that the overlapping intersections leave virtually zero material in the crank interior. The result is effectively a hollow-forged part with a liberally perforated skin plus an indisputably distinctive appearance.
It remains to be seen how well the novel cranks actually perform but regardless, the concept is original. In fact, not only does it apparently avoid infringing on anyone else's patents but Rotor has filed one of its own.
Rotor insists that Sastre's crank is still only a development mule, however, and though the manufacturing process has a name, the item itself still does not. In fact, Rotor co-founder Pablo Carrasco said that the 2008 Tour de France champion won't even be using it in competition here at the Tour of California."
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Yep I agree. But my (weak) point is .. that drillium was tuning of parts in yesterday to improve performance and today tuning is still practised, even if it takes forms other then drilling a hole. I know the direction to WW ;)
Oh btw the pulleys are std 11 teeth .. they've been upgraded I'm pretty sure to ceramic speed pulleys to reduce friction losses.
His TT bike used Berner cages with larger pulleys. Perhaps not used on the road bike due to larger cassette gears?
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^ +1
although Miso called me a Capitalist slave for suggesting something similar.Miso:
If you're gonna do it then just get on with it and stop talking. Post pics too.
You're never gonna save a kilo in this manner safely but I wish you the best of luck and hope you don't knacker anything. -
lookit, you are going to be spending far too much time / money / energy trying to lose ( and a few possibly teeth )a few grams here and there.
just save for lighter stuff that does not need anything done to it.but if i buy lighter stuff, i'll want to make that lighter...
^ +1
although Miso called me a Capitalist slave for suggesting something similar.Oh come one I was only joking!
Miso:
If you're gonna do it then just get on with it and stop talking. Post pics too.Ok, I will.
You're never gonna save a kilo in this manner safely but I wish you the best of luck and hope you don't knacker anything.
We'll see... no actually, you're probably right, but I never said anything about doing it safely... oh wait, no I did...
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Fill your tubes with helium and seal them.
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Science and shit innit. Like putting holes in stuff make break your face and putting magnets in front of your bike makes it faster.
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things like this always put a smile on my face and make me feel good inside
and even more so this when the makers branding has been removed with maybe just the CA of campagnolo still visible. from the days when there was eitheir campag or campagnoloi remember being 12 or 13 and drilling as many holes as i could in the steel seat post of the racer that had. looking back, i'm not even sure i knew why i was doing it.
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I expect the OP will have a similar epiphany once the drilling starts...
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Drillium - Drilling bike frames and parts
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Fabian Cancellara's (Radioshack-Nissan) le-tour Shimano Dura-Ace rear derailleur .. equipped with aftermarket pulleys and Nokon cables at a quick galance, so I guess he feels there's a need to 'tune' standard equipment?
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