Thanks, guess I was running on fumes. But the google forum lack of edit functions paired with a tired 'ol Win98 do ad to the fun. :)
On 11 Jan, 18:19, "David Faller" <[email protected]> wrote: > Did you finally get some coffee? > > > > ----- Original Message ----- > From: fenderbender > To: RBW Owners Bunch > Sent: Sunday, January 11, 2009 6:49 AM > Subject: [RBW] Re: handlebar lifespan? > > To answer the question I don't replace unless I can see a crack, dent > or deep mark. The only bars I've broken has been in crashes prior to > that and neither were hi end parts. When I think of it they probably > were 6 or 7000 series too! In RR39/Summer-03 issue there was a very > interesting interview with the president and designer of Nitto Mr. > Akira Yoshikawa by Grant: > > "Q: For a 200lb (91kg) road rider, how light can a bar be made and > still pass your standards? > > A: The lightest is 260g. About 250-260g. If you try to make it lighter > than 200g you have to use 7075. You have to use better grade > material. > > Q: So the 7000 series is stronger? > > A: The tensile strength is higher, yes, but the problem is that, when > there is high impact, the 7075 breaks because it's brittle. With the > 2000 series, it bends easier. We think it is safer for the consumer if > it bends instead of breaking. > > Q: I've heard that aluminium handlebars should be replaced every five > years. Do you agree with this? Even if thy have not been crashed? > > A: The life span of aluminium is shorter than steel. If you make > aluminium handlebars and don't even use it for ten years, it is > significantly weaker than when it was new. We know our handlebars and > stems are quite strong, of course, but when they are aluminium, it is > safest to replace them before they break, or show sign of breaking. It > is a personal judgement from the rider, as to when to do this." > > Edit: Sorry for the gremins, needed to re-wrote some. > > On 8 Jan, 19:05, "Doug Peterson" <[email protected]> wrote: > > Do you replace your handlebars on a regular basis? > > > Years ago, a friend had his handlebars snap off near the stem, resulting > in > > a shoulder dislocating crash & only luck kept him from being hit by a car. > > When I mentioned this incident, several riders had similar experiences. > > Since then, I've taken the precaution of replacing bars every 5 years on > the > > bike I ride all the time. FWIW, I've also had 2 aluminum frames fail so > > perhaps I'm just a klutz. > > > dougP- Dölj citerad text - > > - Visa citerad text - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en -~----------~----~----~----~------~----~------~--~---
