[RBW] Re: metallurgy question
David: I think Al in a wet, gritty environment wouldn't last as long as steel. But in dry SoCal, either one will work. I've got an Al 24T on my (admittedly underused) MTB that's been on there for years and looks fine. The 24T on my Atlantis is plain old steel (shows rust and is magnetic) and gets used on loaded tours. I bought a spare Al 24T on the close-out table at a bike shop a couple of recessions ago and it's still in the package. dougP On Nov 8, 9:03 pm, cyclotourist wrote: > On Sun, Nov 8, 2009 at 1:01 PM, Tim McNamara wrote: > > > On Nov 8, 2009, at 1:02 PM, CycloFiend wrote: > > > > on 11/8/09 10:37 AM, cyclotourist at cyclotour...@gmail.com wrote: > > > > I don't use them that much, so haven't had a problem wearing them > > > out. Would the SS one wear the chain more than the Al one? > > > > I've never found a difference in chain wear from the rings. The > > > rollers are probably the least likely part to fail. The biggest > > > wear issue is side load on the plates, which is why excessive cross- > > > chaining is not the world's greatest idea. > > > Since chain wear is inside between the rollers and the pins, the > > material of the chainring would have no effect on this. Take a > > really worn chain apart sometime and look at the pins- you can > > usually see exactly where the load is brought to bear. There's a > > good page about roller chain design, chain wear, how chains interface > > with chainwheels and cogs, etc: > > >http://pardo.net/bike/pic/fail-004/000.html > > > --~--~-~--~~~---~--~~ > > That's a really cool page, Tim. Thanks for passing along the link! I > priced that Shimano tool: $50. Yikes! > > -- > Cheers, > David > Redlands, CA > > "Bicycling is a big part of the future. It has to be. There is something > wrong with a society that drives a car to workout in a gym." ~Bill Nye, > scientist guy- Hide quoted text - > > - Show quoted 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 rbw-owners-bunch@googlegroups.com To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en -~--~~~~--~~--~--~---
[RBW] Re: metallurgy question
On Sun, Nov 8, 2009 at 1:01 PM, Tim McNamara wrote: > > > On Nov 8, 2009, at 1:02 PM, CycloFiend wrote: > > > on 11/8/09 10:37 AM, cyclotourist at cyclotour...@gmail.com wrote: > > > > I don't use them that much, so haven't had a problem wearing them > > out. Would the SS one wear the chain more than the Al one? > > > > I've never found a difference in chain wear from the rings. The > > rollers are probably the least likely part to fail. The biggest > > wear issue is side load on the plates, which is why excessive cross- > > chaining is not the world's greatest idea. > > Since chain wear is inside between the rollers and the pins, the > material of the chainring would have no effect on this. Take a > really worn chain apart sometime and look at the pins- you can > usually see exactly where the load is brought to bear. There's a > good page about roller chain design, chain wear, how chains interface > with chainwheels and cogs, etc: > > http://pardo.net/bike/pic/fail-004/000.html > > --~--~-~--~~~---~--~~ > That's a really cool page, Tim. Thanks for passing along the link! I priced that Shimano tool: $50. Yikes! -- Cheers, David Redlands, CA "Bicycling is a big part of the future. It has to be. There is something wrong with a society that drives a car to workout in a gym." ~Bill Nye, scientist guy --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en -~--~~~~--~~--~--~---
[RBW] Re: metallurgy question
On Nov 8, 2009, at 1:02 PM, CycloFiend wrote: > on 11/8/09 10:37 AM, cyclotourist at cyclotour...@gmail.com wrote: > > I don't use them that much, so haven't had a problem wearing them > out. Would the SS one wear the chain more than the Al one? > > I've never found a difference in chain wear from the rings. The > rollers are probably the least likely part to fail. The biggest > wear issue is side load on the plates, which is why excessive cross- > chaining is not the world's greatest idea. Since chain wear is inside between the rollers and the pins, the material of the chainring would have no effect on this. Take a really worn chain apart sometime and look at the pins- you can usually see exactly where the load is brought to bear. There's a good page about roller chain design, chain wear, how chains interface with chainwheels and cogs, etc: http://pardo.net/bike/pic/fail-004/000.html --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en -~--~~~~--~~--~--~---
[RBW] Re: metallurgy question
On Sun, Nov 8, 2009 at 11:02 AM, CycloFiend wrote: > on 11/8/09 10:37 AM, cyclotourist at cyclotour...@gmail.com wrote: > > > I don't use them that much, so haven't had a problem wearing them out. > Would the SS one wear the chain more than the Al one? > > > I've never found a difference in chain wear from the rings. The rollers > are probably the least likely part to fail. The biggest wear issue is side > load on the plates, which is why excessive cross-chaining is not the world's > greatest idea. > > - Jim > > > SS it is! THANKS for the 411! -- Cheers, David Redlands, CA "Bicycling is a big part of the future. It has to be. There is something wrong with a society that drives a car to workout in a gym." ~Bill Nye, scientist guy --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en -~--~~~~--~~--~--~---
[RBW] Re: metallurgy question
on 11/8/09 10:37 AM, cyclotourist at cyclotour...@gmail.com wrote: I don't use them that much, so haven't had a problem wearing them out. Would the SS one wear the chain more than the Al one? I've never found a difference in chain wear from the rings. The rollers are probably the least likely part to fail. The biggest wear issue is side load on the plates, which is why excessive cross-chaining is not the world's greatest idea. - Jim -- Jim Edgar cyclofi...@earthlink.net Current Classics Bicycle Photo Gallery - http://www.cyclofiend.com/cc Cross Bike Photo Gallery - http://www.cyclofiend.com/cx Single Speed Garage Photo Gallery - http://www.cyclofiend.com/ssg Working Bikes & Practical Hardware - http://www.cyclofiend.com/working Work Shops of the iBob's - http://www.cyclofiend.com/shop Send In Your Photos! - Here's how: http://www.cyclofiend.com/guidelines "That which is overdesigned, too highly specific, anticipates outcome; the anticipation of outcome guarantees, if not failure, the absence of grace." William Gibson - "All Tomorrow's Parties" --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en -~--~~~~--~~--~--~---
[RBW] Re: metallurgy question
On Sun, Nov 8, 2009 at 10:28 AM, CycloFiend wrote: > on 11/7/09 10:24 PM, cyclotourist at cyclotour...@gmail.com wrote: > > I'm going to put a 22T small chaingring on my bike, and am wondering if > it's advisable to go with aluminum or stainless steel for a small chainring > like that. Specifically I'm looking at the "Rocket Cycles" brand > chaingring. 6061 aluminum. Any experiences with that? > > I don't use it all that much, but when ya' need one ya' need one! > > > I've run both and if you don't use it that much, I'd probably opt for the > least expensive. In general small rings live a short, brutal life - more > use cycles, high torque. Add into that the abrasive aspect of fine trail > dust and it's good not to get emotionally attached to any of them... > > - J > > I don't use them that much, so haven't had a problem wearing them out. Would the SS one wear the chain more than the Al one? -- Cheers, David Redlands, CA "Bicycling is a big part of the future. It has to be. There is something wrong with a society that drives a car to workout in a gym." ~Bill Nye, scientist guy --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en -~--~~~~--~~--~--~---
[RBW] Re: metallurgy question
on 11/7/09 10:24 PM, cyclotourist at cyclotour...@gmail.com wrote: I'm going to put a 22T small chaingring on my bike, and am wondering if it's advisable to go with aluminum or stainless steel for a small chainring like that. Specifically I'm looking at the "Rocket Cycles" brand chaingring. 6061 aluminum. Any experiences with that? I don't use it all that much, but when ya' need one ya' need one! I've run both and if you don't use it that much, I'd probably opt for the least expensive. In general small rings live a short, brutal life - more use cycles, high torque. Add into that the abrasive aspect of fine trail dust and it's good not to get emotionally attached to any of them... - J -- Jim Edgar cyclofi...@earthlink.net ³Velvet pillows, safari parks, sunglasses: people have become woolly mice. They still have bodies that can walk for five days and four nights through a desert of snow, without food, but they accept praise for having taken a one-hour bicycle ride.² - Tim Krabbe, "The Rider" Cyclofiend Bicycle Photo Galleries - http://www.cyclofiend.com Current Classics - Cross Bikes Singlespeed - Working Bikes Send In Your Photos! - Here's how: http://www.cyclofiend.com/guidelines --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en -~--~~~~--~~--~--~---
[RBW] Re: metallurgy question
Thanks for the reply, Angus. I'm leaning to the SS, especially with such a small ring, but just wondering if there were +/- to each... THANKS! On Sun, Nov 8, 2009 at 3:35 AM, Angus wrote: > > David, > > My experience with aluminum and stainless 22 and 20 tooth chainrings > is that the aluminum one wear faster...no surprise, but if you're not > using it that much it probably doesn't matter. > > I have used a Rocket Cycles chainring before, I don't recall it > standing out in either a good or a bad way. > > Angus > > On Nov 8, 12:24 am, cyclotourist wrote: > > I'm going to put a 22T small chaingring on my bike, and am wondering if > it's > > advisable to go with aluminum or stainless steel for a small chainring > like > > that. Specifically I'm looking at the "Rocket Cycles" brand chaingring. > > 6061 aluminum. Any experiences with that? > > > > I don't use it all that much, but when ya' need one ya' need one! > > > > -- > > Cheers, > > David > > Redlands, CA > > > > "Bicycling is a big part of the future. It has to be. There is something > > wrong with a society that drives a car to workout in a gym." ~Bill Nye, > > scientist guy > > > -- Cheers, David Redlands, CA "Bicycling is a big part of the future. It has to be. There is something wrong with a society that drives a car to workout in a gym." ~Bill Nye, scientist guy --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en -~--~~~~--~~--~--~---
[RBW] Re: metallurgy question
David, My experience with aluminum and stainless 22 and 20 tooth chainrings is that the aluminum one wear faster...no surprise, but if you're not using it that much it probably doesn't matter. I have used a Rocket Cycles chainring before, I don't recall it standing out in either a good or a bad way. Angus On Nov 8, 12:24 am, cyclotourist wrote: > I'm going to put a 22T small chaingring on my bike, and am wondering if it's > advisable to go with aluminum or stainless steel for a small chainring like > that. Specifically I'm looking at the "Rocket Cycles" brand chaingring. > 6061 aluminum. Any experiences with that? > > I don't use it all that much, but when ya' need one ya' need one! > > -- > Cheers, > David > Redlands, CA > > "Bicycling is a big part of the future. It has to be. There is something > wrong with a society that drives a car to workout in a gym." ~Bill Nye, > scientist guy --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en -~--~~~~--~~--~--~---
