Cool Racycle Pacemaker


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Cowboy in NC

Wore out three sets of tires already!
Jun 12, 2017
794
698
58
Dunn, NC
#2
That`s a BAD MACHINE !!! I wish I could help... The Old Timers will chime in soon...------Cowboy
`Wrong about the Sprocket and rear Cog- That Thing Will Fly ...
 
Likes: gkeep

Freqman1

Riding a '37 Dayton Super Streamline
Jul 14, 2009
15,814
16,084
Evans, GA
#4
@Wcben can probably offer insight as to year and value. You are correct regarding the chainring and sprocket. The gearing actually works out pretty close ot a standard drive train due to the size of the rear sprocket. V/r Shawn
 

Goldenindian

Wore out three sets of tires already!
Aug 31, 2014
757
1,058
Marinette, Wisconsin
#5
Love that fork! O mama....thanks for sharing. 1915? Not sure the date range that fork ran for....i know it was available in 1915.... off the top of my head. Great score!
 

gkeep

Finally riding a big boys bike
Jun 11, 2014
387
648
Alameda, CA
#7
"Wrong about the Sprocket and rear Cog- That Thing Will Fly ..."

That is exactly the words I was thinking! That beast will eat up the miles when your up to speed. I've ridden my teens PIerce on the Bay Trail here the 28" wheels and large front sprocket with small 9 tooth cog just feels like a horse stretching out. And the packed sand jogging trail feels better than the pavement. Have fun with that great machine!

Gary
 

Rambler

Wore out three sets of tires already!
Nov 1, 2011
623
365
Auburn Hills, United States
#10
"Wrong about the Sprocket and rear Cog- That Thing Will Fly ..."

That is exactly the words I was thinking! That beast will eat up the miles when your up to speed. I've ridden my teens PIerce on the Bay Trail here the 28" wheels and large front sprocket with small 9 tooth cog just feels like a horse stretching out. And the packed sand jogging trail feels better than the pavement. Have fun with that great machine!

Gary

Gary, I suspect your bike does fly with a 9 tooth rear sprocket. However Junkhunter's bike above has a 16 tooth rear sprocket. That's why Shawn is correct "The gearing actually works out pretty close to a standard drive train due to the size of the rear sprocket".

A gear ratio calculator and a little math tells the story. Junkhunter's bike with 40T front and 16T rear sprockets combined with 28" wheels allows him to travel approximately 18 feet per crank revolution. Your bike Gary on the other hand with 40T front and 9T rear sprockets combined with 28" wheels allows you to travel approximately 32 feet per crank revolution. This is why Junkhunter's bike has a fairly normal gear ratio and your bike runs like a race horse!
 
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gkeep

Finally riding a big boys bike
Jun 11, 2014
387
648
Alameda, CA
#15
Gary, I suspect your bike does fly with a 9 tooth rear sprocket. However Junkhunter's bike above has a 16 tooth rear sprocket. That's why Shawn is correct "The gearing actually works out pretty close to a standard drive train due to the size of the rear sprocket".

A gear ratio calculator and a little math tells the story. Junkhunter's bike with 40T front and 16T rear sprockets combined with 28" wheels allows him to travel approximately 18 feet per crank revolution. Your bike Gary on the other hand with 40T front and 9T rear sprockets combined with 28" wheels allows you to travel approximately 32 feet per crank revolution. This is why Junkhunter's bike has a fairly normal gear ratio and your bike runs like a race horse!
My front sprocket is only 28 T so 22.7 feet per crank revolution, if I calculated that right. Now you've got me thinking about how many revolutions it took to ride 22 miles a couple weeks ago. ;)
 

Rambler

Wore out three sets of tires already!
Nov 1, 2011
623
365
Auburn Hills, United States
#16
My front sprocket is only 28 T so 22.7 feet per crank revolution, if I calculated that right. Now you've got me thinking about how many revolutions it took to ride 22 miles a couple weeks ago. ;)
I concur, you are correct, I calculate 22.9 feet so we are in the same ballpark.

If we split the difference at 22.8 feet, your 22 miles would have required approximately 5094.7 turns of the crank. :)
 
Likes: dnc1

Wcben

Wore out three sets of tires already!
Jan 11, 2012
988
407
Fort Lauderdale, United States
#17
Here is the patent for the triple spring fork, I recall that in the early years of it's availability, you could choose between the triple spring or the dual leaf..... That fork was used I believe untill 1909.... Cool Pacemaker! It would be interesting to see the chain cleaned a little to see if it might be the super-rare Racycle chain....
image.png


Oh! Murray Schenck was employed by Miami Cycle, specifically Racycle.
 
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filmonger

Riding a '38 Autocycle Deluxe
Dec 25, 2010
4,868
5,463
Dublin, Ireland
#18
What is the serial number? Should be on the Bottom Bracket.... Also a picture of the BB would be nice as well. Did you have a look down the seat tube - Miami used to put a tag there with some info on the bike when it left the factory. sometimes people get lucky and find them intact.
 

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