Boulder Art Gallery
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1921 IVER JOHNSON
MODEL 90B CHATER LEA SPECIAL RACER
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  This is a 1921 Iver Johnson Model 90B, Chater Lea, Special Racer.  Serial # 360857 is stamped on the seat tube of this original, "as
found" 21" diamond frame racer.  The frames on these top of the line racers were made with a special Chrome-Molybdenum Steel
which was both lighter in weight and stronger than the standard steel frames of the Model 90 racer.  I find this bike to be extremely
interesting as it sat in a cellar in Vermont for most all of its life so very little, if anything was altered over time.  The original  Black
paint is well worn as is the  Iver Johnson script and double hair line striping.  It's possible this bike was repainted at some point, but
because of its age it's difficult to tell.  Up front is the correct  nickel headtube, narrow nickel racing fork, and gold headbadge all with
a great patina. Another interesting fact is that this racer came with Iver Johnson's seldom seen extended "Luck 7" seatpost.
   The racer is resting on a beautiful set of original, natural finish "Fairbanks Boston High V" wood racing wheels laced to a 40 spoke
Chater Lea rear track hub with 7 tooth cog, and a matching 32 spoke Chater Lea hub up front.  In all my years of collecting, I have
never seen a nicer original Chater Lea wheelset than the set on this bike.  Finishing off the wheelset is a set of 28" x 1 1/8" United
States Special Racer tires put on by me.  To compliment its name, the bike has a complete Chater Lea bottom bracket with a 23 tooth
Chater Lea chainring.  The chainring is the very early style used by Iver Johnson on its 90B racers when they were introduced in
1915.  It has 6 "slots" on its outer edge rather than the "CL" style chainring used on later 90B racers.  I've seen two different versions
of this "slotted" early chainring used on original Iver Johnson 90B racers.  One style has kidney shaped slots with "rounded" ends,
and the other style has the same slots with "strait" ends.  The original Brooks B-17 racing saddle, Torrington "Star" rat trap pedals
with toe clips, Iver Johnson #11 racing handlebars with forward extension, and original  grips add to the great vintage look of this
racer.   All in all, a nicely  preserved example of an Iver Johnson period racer.
( Click Pics to Enlarge)
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