Heroic. I love it. I need to learn about taps and dies, I think. Philip www.biketinker.com
On Tuesday, January 22, 2013 5:44:49 AM UTC-8, Ron Mc wrote: > > Came up with a great solution for mounting a Cygolite on the strut of my > Nitto M-18 front rack . It will also work for a Mark's Rack. > > Note this this won't work on an M-12 or VO front rack with brazed/welded > struts - it will only work on the racks that use separate rod struts and the > Nitto 20184 Rack Nut and Bolt to attach the rod to the rack. > > Note that the M18 rack doesn't have M5 lugs, so there is no simple way to > attach a light to the rack. > > While the Mark's rack does have M5 lugs, and you can attach a light mount > directly to those, they're at the rear of the rack, and attaching on the > strut lets you mount a light 6 inches forward. > > > You need the spare Nitto 20184 assembly. > http://www.rivbike.com/product-p/rh1-20184.htm > <http://webmail.satx.rr.com/do/redirect?url=http%253A%252F%252Fwww.rivbike.com%252Fproduct-p%252Frh1-20184.htm> > > Slide the Nitto rack nut and bolt down the strut, face it out and you have an > M6 mounting base for any of your strap-type light brackets. > I'm sure others have been this far without the epiphany, because here you can > use the Nitto nut and attach a bracket for your Edelux, et.al. lights. > But I wanted a handlebar mount Cygolite on the strut. So I bought a Paul > Gino light mount, re-drilled and tapped the M5 guide hole to the M6 thread, > and used the tapped Gino mount in place of the nut. Also needs a lock > washer, and I went with an M6 bellville spring washer. > > > I used a fluteless (cold-forming) M6 tap on the Gino guide hole,because this > forced me to open the hole from 5mm to 7/32", which took away the anodizing > and gave me fresh metal. > It should also produce harder threads than a chip-cutting tap. > The tap was sold by McMaster as a hand-tap, and it worked great by hand (with > lube - I did it right the first time) > > Here's the Nitto strut joint I took apart. (This joint has to come apart > anyway, to gain access to the strut) > > <http://img.photobucket.com/albums/v728/bulldog1935/Raleigh/aaP1210001.jpg> > > the rod bolt loose on the strut > > <http://img.photobucket.com/albums/v728/bulldog1935/Raleigh/aaP1210003.jpg> > > Nitto clamp washer in place > > <http://img.photobucket.com/albums/v728/bulldog1935/Raleigh/aaP1210004.jpg> > > M6 bellville spring washer in place - the crown side goes toward the Gino > > <http://img.photobucket.com/albums/v728/bulldog1935/Raleigh/aaP1210005.jpg> > > (here is where you could attach the Herse or VO strap bracket for other > style light mounts) > > and my tapped Gino mount completes the assembly > > <http://img.photobucket.com/albums/v728/bulldog1935/Raleigh/aaP1210006.jpg> > > hanging the light for vertical clearance fit > > <http://img.photobucket.com/albums/v728/bulldog1935/Raleigh/aaP1210008.jpg> > > After you have the position and alignment right, you should tighten the > Gino with a pair of channel lock pliers (and maybe a chamois) to get some > compression of the bellville spring washer - this makes for a shock- and > vibration-proof joint. > > and an elegant solution > > <http://img.photobucket.com/albums/v728/bulldog1935/Raleigh/aaP1210010.jpg> > > I'm waiting on my replacement Nitto fitting to reassemble the top of the > strut to the rack, but it will arrive today in a rivbike order. > > It doesn't show in my photos, but the light beam is a good inch and change > above the tire and I have plenty of vertical clearance to reach the light > button under a wide rando bag. > On my M18 rack, I have the long struts attached to my front dropout M5 > lugs, but this should also work fine with shorter struts attached to fork > clamps or lugs. > > > > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To view this discussion on the web visit https://groups.google.com/d/msg/rbw-owners-bunch/-/1sBqh9U8FJkJ. 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.
