Greg Bender
http://www.thisoldtractor.com/gtbender
Thanks to Paul Linn for providing me with these photos and measurements. The top cap nut is part number MG# 13504541. The tube sleeve is part number MG# 13504441.






Thanks to Paul Linn for providing me with these photos and measurements. The disc side hub flange is part number MG# 13613641.



Thanks to Paul Linn for providing me with these photos and measurements. The non-disc side hub flange is part number MG# 14620301.



Thanks to Paul Linn for providing me with these photos and measurements. The axle is part number MG# 13614140.



Thanks to Tom Halchuk, Paul Linn, and Scott Grupe on the old Topica Loopframe_Guzzi news group (which has now moved to Yahoo!). The spacer is part number MG# 13615641.
Tom reports the width of the disc brake wheel spacer is 40.8686 mm or 1.609". Paul reports a slightly different measurement of 40.91 mm. Perhaps the length when new is 41 mm and the spacer is compressed somewhat with repeated torqueings of the axle nut.
The outside measurement is 25.55 mm (1.0035") with a wall thickness of 2.70 mm (0.095"). Scott reports that you can easily make a replacement spacer out of commonly available black iron pipe commonly available at hardware stores. 1" OD pipe is the correct diameter and wall thickness and only needs to be cut to length.

Thanks to Paul Linn for providing me with these photos and measurements. The left shroud is part number MG# 13496241. The right shroud is part number MG# 13496141.


