In the Bstone days we devoted catalogue pages to it, and offered Q/R TRAINING DEVICES to dealers (they were custom made, and I brazed in a few dozen dropouts myself).
I used that bridgestone training device hundreds of times in my past life working at the bike shop, both as the QR training tool it was invented for, and as a demo stand for the hub overhaul class that I used to taech at the shop. On Sep 21, 10:02 am, grant <grant...@gmail.com> wrote: > The Q/R is a fantastic invention and a wonderful device that, like a > fork or a knife or even a spoon (or even a cotton ball, or aspirin, or > water), can be misused, resulting in death or worse. It's a *&^*&%$##@ > dilemma for --- well, I can't really say "all bike makers" because > most put them on & forgettaboutit. If you don't put them on, you risk > getting sued. They're not required by law. Their absence is no sign > of .... anything bad. > They devolved in the '70s on Schwinns and have taken various forms--- > Lucifer, Beelzebub, Satan, the Devil, Prince of Darkness---since then. > They make the q/r into an s/r, which is why for years they never > appeared on good bikes. BITD it was understood that if you got a > decent bike, you knew how to close a q/r. > The q/r mechanism/magic is an "overlocking taper," the same gizmo that > makes a Vise Grip lock when closed properly. When closed properly it > can't vibrate open. It would be like a ball rolling up hill, or a box > hopping up stairs. > But as bikes have gone mainstream unexperts buy expensive bikes and > don't learn how to use the q/r, lawsuits are a problem. > > Every owners manual has instructions on how to use the q/r. In the > Bstone days we devoted catalogue pages to it, and offered Q/R TRAINING > DEVICES to dealers (they were custom made, and I brazed in a few dozen > dropouts myself). At RIV we continued to drive it in. Some people > still don't do it right. We have a Youtube video on it. > > http://www.youtube.com/watch?v=afZHVFwcYX8 > > So....HERE, we used to NOT put them on the bikes we sold direct, and > DID use them on bikes that we also offered through dealers...the idea > being that we didn't have access to their customers, so we couldn't > show or explain or emphasize or find out if they already knew. The > bike industry's standard owners manual has the info. I played a minor > role in editing it, and paid super attention to the q/r part. A > friend and the guy who shot photos for the Bstone Endangered Species > and Lug calendars illustrated it. The guy who shifted my catalogue > course in the Bstone days was the main author of it. I've been deeply > involved in this junk forever, and --- well, I've got another story > whose time to tell isn't right now, but it's a humdinger and there's > no ending yet. > > Here's how you close a q/r: With the lever part perpindicular to the > frame (sticking straight out), hand-tighten the nut on the other side > of the q/r until it jams up against the dropout and you can't turn it > anymore. At this point, CLOSING the q/r should require some force. A > six year old can't do it. A ten-year old tuffy can. Any adult who > can't is too weak to ride a bike. Close it, making sure it's sorta > hard to. You usually have to grab the fork or some spokes to provide > leverage, or opposition or something. When closed properly, the > lever will be more or less parallel with the frame. Maybe sticking > INWARD a bit. Closing it should feel like clamping down properly with > a Vise Grip. > Sometimes somebuddy says the lever should point to the rear. > Sometimes, parallel with the fork blade. The truth is it doesn't > matter. If it pokes forward, what gonna happen---? ---is something > going to get in btw the lever and the spokes and somehow apply enough > outward force to open the q/r? And is that going to happen without the > bike crashing way before it happens? Impossible. Buddha and Beelzebub > in tandem couldn't make it happen. -- 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-bu...@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.
