Motorized Bicycle Engine Kit Forum  

Sponsors



Go Back   Motorized Bicycle Engine Kit Forum > Motorized Bicycle > Motorized Cruiser Bicycles

Motorized Cruiser Bicycles The beach cruiser has always been great bicycles to motorize. They just look good with a motor. Use this section to share and discuss about motorizing this classic.

Reply
 
Thread Tools Display Modes
  #11  
Old 09-27-2016, 10:20 AM
Agreen's Avatar
Agreen Agreen is offline
Motorized Bicycle Elite Member
 
Join Date: Feb 2013
Location: Goose Creek, SC
Posts: 757
Default Re: 1937 columbia replica build and question

It's the details that matter the most. I always thought that bike would look good in my collection. Unfortunately, I have too many bikes and not enough garage.
__________________
Never stop wrenching
Reply With Quote
  #12  
Old 09-27-2016, 01:45 PM
ZipTie's Avatar
ZipTie ZipTie is offline
Motorized Bicycle Elite Member
 
Join Date: Jan 2016
Location: Mpls Mn
Posts: 505
Default Re: 1937 columbia replica build and question

AG, No excuse/LOL/ Just get two giant wall mount hangers from Menards they are like 3.00 each and find some solid wall studs...wallla, more bikes will fit in your garage, and look good a hanging. Its what I plan on doing.

__________________
"One pull and It's on, one snip and its off"
“Lets not get too technical”
Reply With Quote
  #13  
Old 10-05-2016, 01:27 AM
ZipTie's Avatar
ZipTie ZipTie is offline
Motorized Bicycle Elite Member
 
Join Date: Jan 2016
Location: Mpls Mn
Posts: 505
Default Re: 1937 columbia replica build and question

Its finally totally finished. Added a custom chain tensioner, added a custom vintage looking LED Tail light. Also the #41 roller chain is on and adjusted so it can run without a tensioner, however its amazing how much the urethane wheel goes up and down under spring tension when the back wheel is turning. It does this even with a precision CNC hub adapter and a american made chain. it reinforces the reason one needs something to keep the tension perfect at all times. There are just so many small tolerance problems with the chains, sprockets, slight wheel and engine angle and centering etc....it all adds up. Its as smooth as silk now and dead quite when pedaling now. Anyhow its ready to gas up and sail down the road at 30 mph confidently.
Attached Images
File Type: jpg IMG_5466.JPG (131.1 KB, 38 views)
File Type: jpg IMG_5464.JPG (136.8 KB, 36 views)
File Type: jpg IMG_5470.JPG (128.5 KB, 33 views)
File Type: jpg IMG_5469.JPG (169.1 KB, 35 views)
File Type: jpg IMG_5474.JPG (147.5 KB, 37 views)
__________________
"One pull and It's on, one snip and its off"
“Lets not get too technical”
Reply With Quote
  #14  
Old 10-05-2016, 08:27 AM
curtisfox curtisfox is offline
Motorized Bicycle Elite Member
 
Join Date: Dec 2008
Location: minesota
Posts: 3,685
Default Re: 1937 columbia replica build and question

KOOOOOOL BEANS!
Like it a lot, nice details..............Curt
Reply With Quote
  #15  
Old 10-05-2016, 11:30 AM
ZipTie's Avatar
ZipTie ZipTie is offline
Motorized Bicycle Elite Member
 
Join Date: Jan 2016
Location: Mpls Mn
Posts: 505
Default Re: 1937 columbia replica build and question

Quote:
Originally Posted by curtisfox View Post
KOOOOOOL BEANS!
Like it a lot, nice details..............Curt
Thanks Curtis, unfortunately our riding season is about over. Now I'm thinking I should wait till spring to fire it up? Grrrrr.
__________________
"One pull and It's on, one snip and its off"
“Lets not get too technical”
Reply With Quote
  #16  
Old 10-05-2016, 12:00 PM
curtisfox curtisfox is offline
Motorized Bicycle Elite Member
 
Join Date: Dec 2008
Location: minesota
Posts: 3,685
Default Re: 1937 columbia replica build and question

Yep! About a month left if we are lucky.....Curt
Reply With Quote
  #17  
Old 10-05-2016, 01:07 PM
KCvale KCvale is offline
Motorized Bicycle Elite Member
 
Join Date: Feb 2010
Location: Phoenix,AZ
Posts: 3,697
Default Re: 1937 columbia replica build and question

Sweet build despite your cool chain tensioner is on the drive side of the chain, that's where you don't want it.

Cool stickers and do-dads, it sets it off.
The tank was a nice touch.

When I bought mine I was **** bent on making that fake tank a real one.
$300 later but I pulled it off.





It's time consuming and expensive, but doable, but I won't be doing it again, I am pretty much just building on Skyhawk GT2 gas tank frames these days, they are 1/2 the price I put in to convert that one.

Anyway, nice build bud, a real eye catcher!
__________________
KC's Krusiers Builds
Reply With Quote
  #18  
Old 10-05-2016, 01:55 PM
ZipTie's Avatar
ZipTie ZipTie is offline
Motorized Bicycle Elite Member
 
Join Date: Jan 2016
Location: Mpls Mn
Posts: 505
Default Re: 1937 columbia replica build and question

Thanks KC, Actually the drive chain is pretty slack free and doesn't really need any tensioner on either side,( but the chain side always seem to have a slight tighter and then slightly looser as the wheel rotates, and the spring on that side always keeps it perfect with 0 slack as the spring and 10 bearing urethane wheel spins + rise and falls up to 3/8" up and down. You should try one of these styles as it makes the chain drive super hushed and smooth as silk, without it there is significant more noise if nothing else. The urethane wheel has no groove so there is 0 resistance. It was your Columbia build that made me want to do one, but that tank project you did successfully would of been my demise/LOL I'm just too darn impatient, I'm that dumb guy who touches the paint before it dries.
Another plus is it only cost me 5 bucks for the plastic tank -vs- 300 and way less of my worthless labor.
__________________
"One pull and It's on, one snip and its off"
“Lets not get too technical”

Last edited by ZipTie; 10-05-2016 at 02:01 PM.
Reply With Quote
  #19  
Old 10-05-2016, 02:04 PM
ZipTie's Avatar
ZipTie ZipTie is offline
Motorized Bicycle Elite Member
 
Join Date: Jan 2016
Location: Mpls Mn
Posts: 505
Question Re: 1937 columbia replica build and question

while I have your eyes on this KC, can you possibly tell me if the Carb is too slanted with this offset intake? If so what do I do to fix it?
Attached Images
File Type: jpg carb IMG_5475level.JPG (161.9 KB, 15 views)
__________________
"One pull and It's on, one snip and its off"
“Lets not get too technical”
Reply With Quote
  #20  
Old 10-06-2016, 11:09 AM
KCvale KCvale is offline
Motorized Bicycle Elite Member
 
Join Date: Feb 2010
Location: Phoenix,AZ
Posts: 3,697
Default Re: 1937 columbia replica build and question

Quote:
Originally Posted by ZipTie View Post
Thanks KC, Actually the drive chain is pretty slack free and doesn't really need any tensioner on either side,
but the chain side always seem to have a slight tighter and then slightly looser as the wheel rotates,
and the spring on that side always keeps it perfect with 0 slack as the spring and 10 bearing urethane wheel spins + rise and falls up to 3/8" up and down.
That is because your back sprocket is not true.
You fix that by truing your sprocket, not putting a spring tensioner to mask the problem.

Quote:
You should try one of these styles as it makes the chain drive super hushed and smooth as silk, without it there is significant more noise if nothing else.
The urethane wheel has no groove so there is 0 resistance.
Yep, I use a bearing mounted smooth wheel too, that was not my point, my point is you always put any tensioner on the slack side of the chain and never the drive side.

Your way, where you hit the gas your spring tensioner will flatten out leaving nothing to take up slack on the return side chain.


Save
__________________
KC's Krusiers Builds
Reply With Quote
Reply

Tags
1937 columbia

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 02:39 PM.


Sponsors

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
MotorBicycling.com