From:Barry Brown
Subject:RE: Model K Date:Tue Nov 24 13:50:49 2015
Response to:5975
you are interpreting the information incorrectly . It is all a matter of the way in
which tires were "labelled" up to the point of transition to "ballon" spec. To
convert the tire measurement on the older tire to find out the rim size multiply 3
1/2 x 2 = 7 . Subtract this from 27 and you get a 20 inch rim. 27 was the
overall height of the mounted tire not the rim size.

I'm building my 1921 model "K" from a basket case. My question is this…the
original 1920 K brochure says the tire size is 27 x 3 1/2. All the '20 and later
Hendersons I've seen have the balloon 20 x 3.85 tires. I cannot imagine a 27 in
rim on the Henderson like the brochure states as the fender is so wide I believe
this would look strange. What am I missing? I need to purchase the clincher rims
so I want to make sure I'm on the right track. Also are the spokes the same
diameter both from and rear? My rear hub has the spoke holes much larger than
my front hub. Thanks for all responses. Kris