forteh Posted December 2, 2008 Report Share Posted December 2, 2008 Right then, can anyone give an indication of how much weight a set of titanium fasteners will save? Trying not to justify buying some but if the saving is significant then I may :$ Basically Im looking at 6x M5 stem bolts, 1x M4 lever screw, 9x M6 sprocket screws and 4x M5 brake screws.Beers in advance PS: Sorry for the weight weenie question Quote Link to comment Share on other sites More sharing options...
Mikee Posted December 2, 2008 Report Share Posted December 2, 2008 im pretty sure that titanium bolts are just over half the weight of steel bolts of the same size. Quote Link to comment Share on other sites More sharing options...
N.Wood Posted December 2, 2008 Report Share Posted December 2, 2008 I think the ti bolts are roughly half the weight?So weigh a few bolts and half the number, add them together and there you are Quote Link to comment Share on other sites More sharing options...
forteh Posted December 2, 2008 Author Report Share Posted December 2, 2008 I know that much, just wondering if someone was anal enough to weigh a set of ti bolts and compare them to steel - saves me the hassle of stripping the bike to find out Might be enough to tip it below the 9kg mark Quote Link to comment Share on other sites More sharing options...
aener Posted December 2, 2008 Report Share Posted December 2, 2008 ...Just put on some muscle... It's hardly going to save MUCH weight, is it? Quote Link to comment Share on other sites More sharing options...
tris Posted December 2, 2008 Report Share Posted December 2, 2008 4 M6 Titanium bolts will save you 10 grams over steel bolts. Quote Link to comment Share on other sites More sharing options...
Muel Posted December 2, 2008 Report Share Posted December 2, 2008 Accoring to my memory, Tarty Adam once told me you could save around 90g for a double disc mod, but as you're not running discs (cheat) you won't have rotor or caliper bolts, but you will have maggy mount bolts?Anyway, I'd imagine it'd be around 75-100g. Whats the spec of the rest of your bike? There may well be somewhere where you can save more than that. Quote Link to comment Share on other sites More sharing options...
Dan6061 Posted December 2, 2008 Report Share Posted December 2, 2008 Save a few grams on each component, and it'll all add up!Riding with a lighter bike is much easier than riding with muscle and a heavy bike... Quote Link to comment Share on other sites More sharing options...
Waddy Posted December 2, 2008 Report Share Posted December 2, 2008 I think the full set of Ti/Alu bolts i got for my bike saved about 60/70g Quote Link to comment Share on other sites More sharing options...
Greetings Posted December 2, 2008 Report Share Posted December 2, 2008 Like Dan says.I've calculated that replacement of every bolt in my bike to Ti ones (except crank bolts and rear funbolts) will save around 60g. That's on a double HS33 setup. Try going for a mixture of Al and Ti - this will reduce costs and save extra weight. Al bolts are much lighter than Ti, but are much weaker as well. You can mix the bolts on stems and 4bolt mounts in order to ensure safety if the aluminium bolts break.Echo crank bolts are also a great way to save weight, you get -20g if you run them without the steel spacers. You're not supposed to do that but it's been ok on my bike so far. I know this is going too far, but if you're going to spend so much money on saving a bit of weight, you might want to ride without the headset top cap and bolt which will save you 20 grams for free. Just keep it in your backpack. Quote Link to comment Share on other sites More sharing options...
forteh Posted December 2, 2008 Author Report Share Posted December 2, 2008 (edited) ...Just put on some muscle... It's hardly going to save MUCH weight, is it?Lighter bikes help more with endurance, got enough muscle as it is 4 M6 Titanium bolts will save you 10 grams over steel bolts.Thank you muchly Accoring to my memory, Tarty Adam once told me you could save around 90g for a double disc mod, but as you're not running discs (cheat) you won't have rotor or caliper bolts, but you will have maggy mount bolts?Anyway, I'd imagine it'd be around 75-100g. Whats the spec of the rest of your bike? There may well be somewhere where you can save more than that.If I could lose 75g on the bolts it would be justifiable, as it is everything on the bike is about as light as I can get it (whilst still retaining the big rear tyre and not resorting to drilling). The last things to do are cut my carbon brake booster (save another 40g to take it to 9.05kg) and look at these bolts edit:I think the full set of Ti/Alu bolts i got for my bike saved about 60/70g Smashing Like Dan says.I've calculated that replacement of every bolt in my bike to Ti ones (except crank bolts and rear funbolts) will save around 60g. That's on a double HS33 setup. Try going for a mixture of Al and Ti - this will reduce costs and save extra weight. Al bolts are much lighter than Ti, but are much weaker as well. You can mix the bolts on stems and 4bolt mounts in order to ensure safety if the aluminium bolts break.Echo crank bolts are also a great way to save weight, you get -20g if you run them without the steel spacers. You're not supposed to do that but it's been ok on my bike so far. I know this is going too far, but if you're going to spend so much money on saving a bit of weight, you might want to ride without the headset top cap and bolt which will save you 20 grams for free. Just keep it in your backpack.Good point about the top cap, it would be even lighter to take the star nut out and carry my hope head doctor around in my bag The echo bolts are a no-go unfortunately as Im running a ti square taper BB, I was looking at some middleburn ti crank bolts but for 18 quid to save 10g it wasnt realistic. Edited December 2, 2008 by forteh Quote Link to comment Share on other sites More sharing options...
Muel Posted December 2, 2008 Report Share Posted December 2, 2008 What rear tyre have you got? You could get a Rubber Queen or a Bontrager Big Earl, which are really good apparantly.I love my Rubber Queen but most people seem to hate them. Quote Link to comment Share on other sites More sharing options...
Bionic Balls Posted December 2, 2008 Report Share Posted December 2, 2008 iv got a single ply minion and it really is surprising how much higher i can sidehop! and pinch wise...it really isn't that bad Quote Link to comment Share on other sites More sharing options...
forteh Posted December 3, 2008 Author Report Share Posted December 3, 2008 I have a rubber queen, bigmans old one incidentally I also had a single ply minion on the rear, awesomely light at 750g and pretty robust but I pinched it at lee quarry so got the conti and run it with a normal tube, its got a load more bounce and its a bit more stable than the maxxis. Quote Link to comment Share on other sites More sharing options...
Ben John-Hynes Posted December 3, 2008 Report Share Posted December 3, 2008 Such a gay topic. Quote Link to comment Share on other sites More sharing options...
Shaun H Posted December 3, 2008 Report Share Posted December 3, 2008 (edited) Such a gay topic.Well you fit right in don't you, faggot! Edited December 3, 2008 by Shaun H Quote Link to comment Share on other sites More sharing options...
Ben John-Hynes Posted December 3, 2008 Report Share Posted December 3, 2008 Hahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahaha...In retrospect, it wasn't THAT funny. Quote Link to comment Share on other sites More sharing options...
aener Posted December 3, 2008 Report Share Posted December 3, 2008 If you're going down to such small numbers - would it be worth thinking about running old rims, that have taken a lot of grinds? Honest question, by the way. Quote Link to comment Share on other sites More sharing options...
forteh Posted December 3, 2008 Author Report Share Posted December 3, 2008 If you're going down to such small numbers - would it be worth thinking about running old rims, that have taken a lot of grinds? Honest question, by the way.Not sure to be honest, the front is a mavic xc717 so its already lighter than any front trials rim and the rear dx32 is almost as light as the lightest of aluminium rims without excessive drilling/filing. Old tyres are much lighter but unfortunately offer bugger all grip on anything resembling a moist rock BJH, youre just jealous (and gay! ) Quote Link to comment Share on other sites More sharing options...
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