72 Swing arm

Started by Rich Fredette, March 26, 2016, 08:52:01 AM

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Rich Fredette

The bracket for the chain guide on my 72 was hacked off at 1" and flat stock snot-welding over it. I am mocking one up to bend up and welding in for stock look.  Can anyone supply a high resolution close-up or even a length/height for the bracket so I can mock one up. Is it one piece with slotted holes or two? Thanks.

\\\'72 Jackpiner - 175: 7-20555153
\\\'14 Newfoundland - Keira 54kg

juliusalexander

Posting a few pictures.

Front


Side


Rear


The chain guide mounts on the swingarm where a chain guard mounting bracket attaches. I dont have time now to do a drawing but will try to give you some dimensions.

Material thickness: .117 "
overall length from swingarm to bottom: 4.750"
length from swingarm to bend: 1.132"
width where chain block mounts to bend: 1.350"
width at swingarm: 1.538"
thickness where block mounts: .291"
thickness at top: .734"
bolt hole width: .235"
upper hole length: .568" (from bend up)
space between upper and middle holes: .573"
space between middle and lower holes: .557"
length of middle and lower holes: 1.066"



JR Alexander
Bloomington, IL
72 175 Jackpiner
66 Triumph Bonneville
2005 KTM 250 EXC
2002 Kawasaki ZRX
JR Alexander
Bloomington, IL
72 175 Jackpiner

Rich Fredette

This is absolutely fantastic JR. Thank you for taking the time and including the precision machinist measurements, no drawing required. :D
\\\'72 Jackpiner - 175: 7-20555153
\\\'14 Newfoundland - Keira 54kg