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Mounting front mudguards Rtc special
#13
(20-05-2020, 12:01 AM)Duncan Grimmond Wrote: I discovered that most tubing fails unless it is solid drawn no welded seam material as used for hydraulic/pneumatic applications.it generally has a thicker wall and if the end is split to take a welded-in strip  the ends last a bit longer.
Vibration cannot be " welded out" as the moment of the vibrating mudguard with the motion of the axle is inevitable. I've been using 15 mm tubing 1.5 thick wall with some success  but failure is almost inevitable in my experience, most often on the attached 4mm strip.

After having a mudguard bracket failure or two in my early years of ownership of my special, I made these mudguard stays from 5/8" x 16 SWG CDS tube. The  plate that bolts to the backplate is brazed to the tube. at the top I have used 5/32 thickness steel Guage Plate which is Nickel Bronze welded to the tube instead of the mild steel strip which had previously failed, as per Duncan's experience. These brackets have been in place since the mid 1980s and haven't failed yet.

[Image: 49115495767_349c9450ed_z.jpg]
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RE: Mounting front mudguards Rtc special - by Stuart Giles - 20-05-2020, 10:47 AM

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