(http://i99.photobucket.com/albums/l309/ducatiz/DMF/a6be0545.jpg)
so......how much do the orignal bolts weigh?
These Ti bolts are 5.1 gm and the stock flathead steel ones are 12.8 gm.
I think you can even find lighter Ti bolts but I like these because they have a very wide head.
....I'd just save the $ and have one less beer unless you are just after the cool factor :)
Cold beer is cool too.
[thumbsup]
Did Theo sneeze on you or something? ;D
Didn't realize you were racing this year, unless you are just out of useful mods so you're dumping silly money into the bike.
No one here would EVER do that.
Quote from: Artful on May 15, 2011, 02:26:17 PM
Didn't realize you were racing this year
You have to race to own Ti bolts?
But naturally, who in their right mind would buy them otherwise? You'd have to be a sick, sick man to just buy them for the hell of it...
(Please note absolutely dripping sarcasm)
Quote from: Artful on May 15, 2011, 09:48:12 PM
But naturally, who in their right mind would buy them otherwise? You'd have to be a sick, sick man to just buy them for the hell of it...
(Please note absolutely dripping sarcasm)
:D
Those look like rotor bolts, which reduce rotational mass and unsprung weight simultaneously at the front wheel.
i think that weight is inaccurate. there appears to be a hair on your scales!! ;D
on a serious note. living in Australia, it was cheaper for me to buy ti bolts from the US than to buy stainless locally. so i too have ti caliper and rotor bolts. i spent a whole day at work throwing one around in my hand as it made me smile.
Quote from: Roaduser on May 15, 2011, 11:12:51 PM
i think that weight is inaccurate. there appears to be a hair on your scales!! ;D
I was preparing for my bikini wax.
Quote from: bergdoerfer on May 15, 2011, 10:28:01 PM
Those look like rotor bolts, which reduce rotational mass and unsprung weight simultaneously at the front wheel.
Exactly. A much cheaper purchase than BSTs.
Now if I could only afford these:
http://cgi.ebay.com/ebaymotors/260777139979 (http://cgi.ebay.com/ebaymotors/260777139979)
Quote from: ducatiz on May 16, 2011, 04:54:05 AM
Exactly. A much cheaper purchase than BSTs.
To even compare these to BST's is a bit absurd, sorry. .08lbs of weight savings at a position very close to the center of the wheel isn't going to do much. most of the effect of CF wheels is because the weight is reduced at the outer most radius of the wheel, where it's effect is amplified even more than the 5:1 ration of benefit between unsprung and sprung weight that so many people quote.
Nothing wrong with retail therapy, but let's not kid ourselves into thinking this is worthwhile. I'm assuming you were kinda kidding about your comment, and I'm not trying to be rude, but you never know who will think this is worthwhile.
Quote from: xplodee on May 16, 2011, 11:13:30 AM
To even compare these to BST's is a bit absurd, sorry. .08lbs of weight savings at a position very close to the center of the wheel isn't going to do much. most of the effect of CF wheels is because the weight is reduced at the outer most radius of the wheel, where it's effect is amplified even more than the 5:1 ration of benefit between unsprung and sprung weight that so many people quote.
Nothing wrong with retail therapy, but let's not kid ourselves into thinking this is worthwhile. I'm assuming you were kinda kidding about your comment, and I'm not trying to be rude, but you never know who will think this is worthwhile.
of course..
but unless jenny craig works wonders i am replacing all of the bolts on the bike with Ti.. and the actual amount of savings for one wheel 0.16875 lbs. For both wheels, it's 0.253125 lbs...
that's like.. a whole sandwich...
I'm in the mood for some retail therapy myself. was thinking about doing a steering damper but I really wish kyle would make a nice over the triple kit for an ohlins unit. Anyway, I digress. Carry on!
Dammit... I just bought them and simultaneously called Ben a moron for spending all that money on his BSTs. Now I just look like a fool...
Quote from: xplodee on May 16, 2011, 11:13:30 AMNothing wrong with retail therapy, but let's not kid ourselves into thinking this is worthwhile. I'm assuming you were kinda kidding about your comment, and I'm not trying to be rude, but you never know who will think this is worthwhile.
It's worthwhile if the rest of the front end bolts are Ti, with a lightweight axle & Ti nut, BSTs, and some billet calipers. In that scenario it's definitely worthwhile.
OK, the real reason is that I'm getting them cheap. Like cheaper than you can imagine. Maybe I'll pass that along if I can corner the market. It's not easy finding an ISO9000 factory in China these days.. I mean with a real ISO cert. lol..
I've seen multiple heads snap off the "nicest" (meaning overpriced) ti hardware long before the suggested torque specs are met. To be honest, I'm not sure if the chinese stuff would be worse than the iso cert'd stuff from probolt or "tastynuts"
Plenty of Cert'd Ti already here in the states. And for cheap. My .02, and I've spent a lot more than that on Ti for my S4r
i think i have Ti rotor bolts on every duc in the garage - whether it be completed bikes, project bike, or a pile of parts for a bike i don't yet own. unsprung weight is unsprung weight - any reduction is worthwhile since it translates into a significant change relative to the same amount of weight reduction of sprung weight.
the project sbk is all Ti bolts (so far... clearly i'm not yet done), ti or alu axles & pivots, etc etc. my monster is all ti external bolts and will receive a Ti swingarm pivot and rear axle next winter, and when the cases are split to get the crank balanced, I'll replace all the internal bolts with Ti too.
And I've had zero Ti bolt failures while torquing to spec or during extended/continuous use.
Quote from: Artful on May 16, 2011, 11:15:54 AM
Dammit... I just bought them and simultaneously called Ben a moron for spending all that money on his BSTs.
You'll say that until you take the SC for a ride. [evil]
Quote from: Artful on May 16, 2011, 11:15:54 AM
Now I just look like a fool...
Now that you mention it... ;D